slices and buffers

Namespaces
namespace	mdbx::allocation_aware_details

Concepts
concept	mdbx::MutableByteProducer
concept	mdbx::ImmutableByteProducer
concept	mdbx::SliceTranscoder

Classes
struct	mdbx::slice
	References a data located outside the slice. More...
struct	mdbx::default_capacity_policy
struct	mdbx::to_hex
	Hexadecimal encoder which satisfy SliceTranscoder concept. More...
struct	mdbx::to_base58
	Base58 encoder which satisfy SliceTranscoder concept. More...
struct	mdbx::to_base64
	Base64 encoder which satisfy SliceTranscoder concept. More...
struct	mdbx::from_hex
	Hexadecimal decoder which satisfy SliceTranscoder concept. More...
struct	mdbx::from_base58
	Base58 decoder which satisfy SliceTranscoder concept. More...
struct	mdbx::from_base64
	Base64 decoder which satisfy SliceTranscoder concept. More...
class	mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >
	The chunk of data stored inside the buffer or located outside it. More...
struct	mdbx::value_result
	Combines data slice with boolean flag to represent result of certain operations. More...
struct	mdbx::pair
	Combines pair of slices for key and value to represent result of certain operations. More...
struct	mdbx::pair_result
	Combines pair of slices for key and value with boolean flag to represent result of certain operations. More...
struct	mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >
interface	MutableByteProducer
	MutableByteProducer C++20 concept. More...
interface	ImmutableByteProducer
	ImmutableByteProducer C++20 concept. More...
interface	SliceTranscoder
	SliceTranscoder C++20 concept. More...

Typedefs
template<typename BUFFER >
using	mdbx::buffer_pair = buffer_pair_spec< typename BUFFER::allocator_type, typename BUFFER::reservation_policy >

Functions
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy, MutableByteProducer PRODUCER>
buffer< ALLOCATOR, CAPACITY_POLICY >	mdbx::make_buffer (PRODUCER &producer, const ALLOCATOR &allocator=ALLOCATOR())
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy, ImmutableByteProducer PRODUCER>
buffer< ALLOCATOR, CAPACITY_POLICY >	mdbx::make_buffer (const PRODUCER &producer, const ALLOCATOR &allocator=ALLOCATOR())
template<class ALLOCATOR = default_allocator, MutableByteProducer PRODUCER>
string< ALLOCATOR >	mdbx::make_string (PRODUCER &producer, const ALLOCATOR &allocator=ALLOCATOR())
template<class ALLOCATOR = default_allocator, ImmutableByteProducer PRODUCER>
string< ALLOCATOR >	mdbx::make_string (const PRODUCER &producer, const ALLOCATOR &allocator=ALLOCATOR())
inline ::std::ostream &	mdbx::operator<< (::std::ostream &out, const to_hex &wrapper)
inline ::std::ostream &	mdbx::operator<< (::std::ostream &out, const to_base58 &wrapper)
inline ::std::ostream &	mdbx::operator<< (::std::ostream &out, const to_base64 &wrapper)

Detailed Description

---

Class Documentation

mdbx::slice

struct mdbx::slice

References a data located outside the slice.

The slice is similar in many ways to std::string_view, but it implements specific capabilities and manipulates with bytes but not a characters.

See also

mdbx::slice

mdbx::buffer

Values returned from the table are valid only until a subsequent update operation, or the end of the transaction. Do not modify or free them, they commonly point into the database itself.

Key sizes must be between 0 and mdbx_env_get_maxkeysize() inclusive. The same applies to data sizes in tables with the MDBX_DUPSORT flag. Other data items can in theory be from 0 to MDBX_MAXDATASIZE bytes long.

Note

The notable difference between MDBX and LMDB is that MDBX support zero length keys.

Inherits MDBX_val.

Public Types
enum	{ max_length = MDBX_MAXDATASIZE }
Public Member Functions
constexpr	slice () noexcept
	Create an empty slice.
constexpr	slice (const void *ptr, size_t bytes)
	Create a slice that refers to [0,bytes-1] of memory bytes pointed by ptr.
constexpr	slice (const void *begin, const void *end)
	Create a slice that refers to [begin,end] of memory bytes.
template<size_t SIZE>
constexpr	slice (const char(&text)[SIZE])
	Create a slice that refers to text[0,strlen(text)-1].
constexpr	slice (const char *c_str)
	Create a slice that refers to c_str[0,strlen(c_str)-1].
template<class CHAR , class T , class A >
constexpr	slice (const ::std::basic_string< CHAR, T, A > &str)
	Create a slice that refers to the contents of "str".
constexpr	slice (const MDBX_val &src)
constexpr	slice (const slice &) noexcept=default
constexpr	slice (MDBX_val &&src)
constexpr	slice (slice &&src) noexcept
template<typename POD >
constexpr	slice (const ::std::span< POD > &span)
template<typename POD >
constexpr ::std::span< const POD >	as_span () const
template<typename POD >
constexpr ::std::span< POD >	as_span ()
constexpr ::std::span< const byte >	bytes () const
constexpr ::std::span< byte >	bytes ()
constexpr ::std::span< const char >	chars () const
constexpr ::std::span< char >	chars ()
template<class CHAR , class T >
constexpr	slice (const ::std::basic_string_view< CHAR, T > &sv)
	Create a slice that refers to the same contents as "string_view".
template<class CHAR , class T >
	slice (::std::basic_string_view< CHAR, T > &&sv)
slice &	assign (const void *ptr, size_t bytes)
slice &	assign (const slice &src) noexcept
slice &	assign (const ::MDBX_val &src)
slice &	assign (slice &&src) noexcept
slice &	assign (::MDBX_val &&src)
slice &	assign (const void *begin, const void *end)
template<class CHAR , class T , class ALLOCATOR >
slice &	assign (const ::std::basic_string< CHAR, T, ALLOCATOR > &str)
slice &	assign (const char *c_str)
template<class CHAR , class T >
slice &	assign (const ::std::basic_string_view< CHAR, T > &view)
template<class CHAR , class T >
slice &	assign (::std::basic_string_view< CHAR, T > &&view)
slice &	operator= (const slice &) noexcept=default
slice &	operator= (slice &&src) noexcept
slice &	operator= (::MDBX_val &&src)
	operator MDBX_val * () noexcept
	operator const MDBX_val * () const noexcept
template<class CHAR , class T >
slice &	operator= (const ::std::basic_string_view< CHAR, T > &view)
template<class CHAR , class T >
slice &	operator= (::std::basic_string_view< CHAR, T > &&view)
template<class CHAR = char, class T = ::std::char_traits<CHAR>>
constexpr ::std::basic_string_view< CHAR, T >	string_view () const noexcept
	Return a string_view that references the same data as this slice.
template<class CHAR , class T >
constexpr	operator::std::basic_string_view () const noexcept
	Return a string_view that references the same data as this slice.
template<class CHAR = char, class T = ::std::char_traits<CHAR>, class ALLOCATOR = default_allocator>
constexpr ::std::basic_string< CHAR, T, ALLOCATOR >	as_string (const ALLOCATOR &allocator=ALLOCATOR()) const
template<class CHAR , class T , class ALLOCATOR >
constexpr	operator::std::basic_string () const
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_hex_string (bool uppercase=false, unsigned wrap_width=0, const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a string with a hexadecimal dump of the slice content.
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_base58_string (unsigned wrap_width=0, const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a string with a Base58 dump of the slice content.
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_base64_string (unsigned wrap_width=0, const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a string with a Base58 dump of the slice content.
template<class ALLOCATOR = default_allocator, class CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	encode_hex (bool uppercase=false, unsigned wrap_width=0, const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a buffer with a hexadecimal dump of the slice content.
template<class ALLOCATOR = default_allocator, class CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	encode_base58 (unsigned wrap_width=0, const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a buffer with a Base58 dump of the slice content.
template<class ALLOCATOR = default_allocator, class CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	encode_base64 (unsigned wrap_width=0, const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a buffer with a Base64 dump of the slice content.
template<class ALLOCATOR = default_allocator, class CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	hex_decode (bool ignore_spaces=false, const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes hexadecimal dump from the slice content to returned buffer.
template<class ALLOCATOR = default_allocator, class CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	base58_decode (bool ignore_spaces=false, const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes Base58 dump from the slice content to returned buffer.
template<class ALLOCATOR = default_allocator, class CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	base64_decode (bool ignore_spaces=false, const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes Base64 dump from the slice content to returned buffer.
bool	is_printable (bool disable_utf8=false) const noexcept
	Checks whether the content of the slice is printable.
bool	is_hex (bool ignore_spaces=false) const noexcept
	Checks whether the content of the slice is a hexadecimal dump.
bool	is_base58 (bool ignore_spaces=false) const noexcept
	Checks whether the content of the slice is a Base58 dump.
bool	is_base64 (bool ignore_spaces=false) const noexcept
	Checks whether the content of the slice is a Base64 dump.
void	swap (slice &other) noexcept
template<class CHAR , class T >
void	swap (::std::basic_string_view< CHAR, T > &view) noexcept
constexpr const byte *	byte_ptr () const noexcept
	Returns casted to pointer to byte an address of data.
constexpr byte *	byte_ptr () noexcept
constexpr const byte *	end_byte_ptr () const noexcept
	Returns casted to pointer to byte an end of data.
constexpr byte *	end_byte_ptr () noexcept
constexpr const char *	char_ptr () const noexcept
	Returns casted to pointer to char an address of data.
constexpr char *	char_ptr () noexcept
constexpr const char *	end_char_ptr () const noexcept
	Returns casted to pointer to char an end of data.
constexpr char *	end_char_ptr () noexcept
constexpr const void *	data () const noexcept
	Return a pointer to the beginning of the referenced data.
constexpr void *	data () noexcept
constexpr const void *	end () const noexcept
	Return a pointer to the ending of the referenced data.
constexpr void *	end () noexcept
constexpr size_t	length () const noexcept
	Returns the number of bytes.
constexpr slice &	set_length (size_t bytes)
	Set slice length.
constexpr slice &	set_end (const void *ptr)
	Sets the length by specifying the end of the slice data.
constexpr bool	empty () const noexcept
	Checks whether the slice is empty.
constexpr bool	is_null () const noexcept
	Checks whether the slice data pointer is nullptr.
constexpr size_t	size () const noexcept
	Returns the number of bytes.
constexpr void	invalidate () noexcept
	Depletes content of slice and make it invalid.
constexpr void	clear () noexcept
	Makes the slice empty and referencing to nothing.
void	remove_prefix (size_t n) noexcept
	Drops the first "n" bytes from this slice.
void	remove_suffix (size_t n) noexcept
	Drops the last "n" bytes from this slice.
void	safe_remove_prefix (size_t n)
	Drops the first "n" bytes from this slice.
void	safe_remove_suffix (size_t n)
	Drops the last "n" bytes from this slice.
constexpr bool	starts_with (const slice &prefix) const noexcept
	Checks if the data starts with the given prefix.
constexpr bool	ends_with (const slice &suffix) const noexcept
	Checks if the data ends with the given suffix.
constexpr byte	operator[] (size_t n) const noexcept
	Returns the nth byte in the referenced data.
constexpr byte	at (size_t n) const
	Returns the nth byte in the referenced data with bounds checking.
constexpr slice	head (size_t n) const noexcept
	Returns the first "n" bytes of the slice.
constexpr slice	tail (size_t n) const noexcept
	Returns the last "n" bytes of the slice.
constexpr slice	middle (size_t from, size_t n) const noexcept
	Returns the middle "n" bytes of the slice.
constexpr slice	safe_head (size_t n) const
	Returns the first "n" bytes of the slice.
constexpr slice	safe_tail (size_t n) const
	Returns the last "n" bytes of the slice.
constexpr slice	safe_middle (size_t from, size_t n) const
	Returns the middle "n" bytes of the slice.
constexpr size_t	hash_value () const noexcept
	Returns the hash value of referenced data.
constexpr bool	is_valid () const noexcept
	Checks the slice is not refers to null address or has zero length.
template<typename POD >
constexpr POD	as_pod () const
constexpr uint128_t	as_uint128 () const
constexpr uint64_t	as_uint64 () const
constexpr uint32_t	as_uint32 () const
constexpr uint16_t	as_uint16 () const
constexpr uint8_t	as_uint8 () const
constexpr int128_t	as_int128 () const
constexpr int64_t	as_int64 () const
constexpr int32_t	as_int32 () const
constexpr int16_t	as_int16 () const
constexpr int8_t	as_int8 () const
uint128_t	as_uint128_adapt () const
uint64_t	as_uint64_adapt () const
uint32_t	as_uint32_adapt () const
uint16_t	as_uint16_adapt () const
uint8_t	as_uint8_adapt () const
int128_t	as_int128_adapt () const
int64_t	as_int64_adapt () const
int32_t	as_int32_adapt () const
int16_t	as_int16_adapt () const
int8_t	as_int8_adapt () const
Static Public Member Functions
template<size_t SIZE>
static constexpr slice	wrap (const char(&text)[SIZE])
template<typename POD >
static constexpr slice	wrap (const POD &pod)
static constexpr intptr_t	compare_fast (const slice &a, const slice &b) noexcept
	Three-way fast non-lexicographically length-based comparison.
static constexpr intptr_t	compare_lexicographically (const slice &a, const slice &b) noexcept
	Three-way lexicographically comparison.
static constexpr slice	invalid () noexcept
	Build an invalid slice which non-zero length and refers to null address.
Protected Member Functions
constexpr	slice (size_t invalid_length) noexcept
Friends
constexpr bool	operator== (const slice &a, const slice &b) noexcept
constexpr bool	operator< (const slice &a, const slice &b) noexcept
constexpr bool	operator> (const slice &a, const slice &b) noexcept
constexpr bool	operator<= (const slice &a, const slice &b) noexcept
constexpr bool	operator>= (const slice &a, const slice &b) noexcept
constexpr bool	operator!= (const slice &a, const slice &b) noexcept

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
max_length

Constructor & Destructor Documentation

slice() [1/7]

template<size_t SIZE>

constexpr mdbx::slice::slice ( const char(&)  text[SIZE] )

inlineconstexpr

Create a slice that refers to text[0,strlen(text)-1].

slice() [2/7]

template<class CHAR , class T , class A >

constexpr mdbx::slice::slice ( const ::std::basic_string< CHAR, T, A > &  str )

inlineexplicitconstexpr

Create a slice that refers to the contents of "str".

Note

'explicit' to avoid reference to the temporary std::string instance.

slice() [3/7]

constexpr mdbx::slice::slice ( const slice &  )

constexprdefaultnoexcept

slice() [4/7]

template<typename POD >

constexpr mdbx::slice::slice ( const ::std::span< POD > &  span )

inlineconstexpr

slice() [5/7]

template<class CHAR , class T >

constexpr mdbx::slice::slice ( const ::std::basic_string_view< CHAR, T > &  sv )

inlineconstexpr

Create a slice that refers to the same contents as "string_view".

slice() [6/7]

template<class CHAR , class T >

mdbx::slice::slice ( ::std::basic_string_view< CHAR, T > &&  sv )

inline

slice() [7/7]

constexpr mdbx::slice::slice ( size_t  invalid_length )

inlineconstexprprotectednoexcept

Member Function Documentation

as_int128()

constexpr int128_t mdbx::slice::as_int128 ( ) const

inlineconstexpr

as_int128_adapt()

int128_t mdbx::slice::as_int128_adapt

(

)

const

as_int16()

constexpr int16_t mdbx::slice::as_int16 ( ) const

inlineconstexpr

as_int16_adapt()

int16_t mdbx::slice::as_int16_adapt

(

)

const

as_int32()

constexpr int32_t mdbx::slice::as_int32 ( ) const

inlineconstexpr

as_int32_adapt()

int32_t mdbx::slice::as_int32_adapt

(

)

const

as_int64()

constexpr int64_t mdbx::slice::as_int64 ( ) const

inlineconstexpr

as_int64_adapt()

int64_t mdbx::slice::as_int64_adapt

(

)

const

as_int8()

constexpr int8_t mdbx::slice::as_int8 ( ) const

inlineconstexpr

as_int8_adapt()

int8_t mdbx::slice::as_int8_adapt

(

)

const

as_pod()

template<typename POD >

constexpr POD mdbx::slice::as_pod ( ) const

inlineconstexpr

as_span() [1/2]

template<typename POD >

constexpr ::std::span< POD > mdbx::slice::as_span ( )

inlineconstexpr

as_span() [2/2]

template<typename POD >

constexpr ::std::span< const POD > mdbx::slice::as_span ( ) const

inline

as_string()

template<class CHAR = char, class T = ::std::char_traits<CHAR>, class ALLOCATOR = default_allocator>

constexpr ::std::basic_string< CHAR, T, ALLOCATOR > mdbx::slice::as_string ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

as_uint128()

constexpr uint128_t mdbx::slice::as_uint128 ( ) const

inlineconstexpr

as_uint128_adapt()

uint128_t mdbx::slice::as_uint128_adapt

(

)

const

as_uint16()

constexpr uint16_t mdbx::slice::as_uint16 ( ) const

inlineconstexpr

as_uint16_adapt()

uint16_t mdbx::slice::as_uint16_adapt

(

)

const

as_uint32()

constexpr uint32_t mdbx::slice::as_uint32 ( ) const

inlineconstexpr

as_uint32_adapt()

uint32_t mdbx::slice::as_uint32_adapt

(

)

const

as_uint64()

constexpr uint64_t mdbx::slice::as_uint64 ( ) const

inlineconstexpr

as_uint64_adapt()

uint64_t mdbx::slice::as_uint64_adapt

(

)

const

as_uint8()

constexpr uint8_t mdbx::slice::as_uint8 ( ) const

inlineconstexpr

as_uint8_adapt()

uint8_t mdbx::slice::as_uint8_adapt

(

)

const

assign() [1/3]

template<class CHAR , class T >

slice & mdbx::slice::assign ( ::std::basic_string_view< CHAR, T > &&  view )

inline

assign() [2/3]

template<class CHAR , class T , class ALLOCATOR >

slice & mdbx::slice::assign ( const ::std::basic_string< CHAR, T, ALLOCATOR > &  str )

inline

assign() [3/3]

template<class CHAR , class T >

slice & mdbx::slice::assign ( const ::std::basic_string_view< CHAR, T > &  view )

inline

bytes() [1/2]

constexpr ::std::span< byte > mdbx::slice::bytes ( )

inline

bytes() [2/2]

constexpr ::std::span< const byte > mdbx::slice::bytes ( ) const

inline

chars() [1/2]

constexpr ::std::span< char > mdbx::slice::chars ( )

inline

chars() [2/2]

constexpr ::std::span< const char > mdbx::slice::chars ( ) const

inline

invalid()

static constexpr slice mdbx::slice::invalid ( )

inlinestaticconstexprnoexcept

Build an invalid slice which non-zero length and refers to null address.

is_printable()

bool mdbx::slice::is_printable ( bool  disable_utf8 = false ) const

noexcept

Checks whether the content of the slice is printable.

Parameters

[in]

disable_utf8

By default if disable_utf8 is false function checks that content bytes are printable ASCII-7 characters or a valid UTF8 sequences. Otherwise, if if disable_utf8 is true function checks that content bytes are printable extended 8-bit ASCII codes.

is_valid()

constexpr bool mdbx::slice::is_valid ( ) const

inlineconstexprnoexcept

Checks the slice is not refers to null address or has zero length.

operator const MDBX_val *()

mdbx::slice::operator const MDBX_val * ( ) const

inlinenoexcept

operator MDBX_val *()

mdbx::slice::operator MDBX_val * ( )

inlinenoexcept

operator::std::basic_string()

template<class CHAR , class T , class ALLOCATOR >

constexpr mdbx::slice::operator::std::basic_string ( ) const

inlineexplicitconstexpr

operator::std::basic_string_view()

template<class CHAR , class T >

constexpr mdbx::slice::operator::std::basic_string_view ( ) const

inlineexplicitconstexprnoexcept

Return a string_view that references the same data as this slice.

operator=() [1/3]

template<class CHAR , class T >

slice & mdbx::slice::operator= ( ::std::basic_string_view< CHAR, T > &&  view )

inline

operator=() [2/3]

template<class CHAR , class T >

slice & mdbx::slice::operator= ( const ::std::basic_string_view< CHAR, T > &  view )

inline

operator=() [3/3]

slice & mdbx::slice::operator= ( const slice &  )

defaultnoexcept

string_view()

template<class CHAR = char, class T = ::std::char_traits<CHAR>>

constexpr ::std::basic_string_view< CHAR, T > mdbx::slice::string_view ( ) const

inlinenoexcept

Return a string_view that references the same data as this slice.

swap()

template<class CHAR , class T >

void mdbx::slice::swap ( ::std::basic_string_view< CHAR, T > &  view )

inlinenoexcept

wrap() [1/2]

template<size_t SIZE>

static constexpr slice mdbx::slice::wrap ( const char(&)  text[SIZE] )

inlinestaticconstexpr

wrap() [2/2]

template<typename POD >

static constexpr slice mdbx::slice::wrap ( const POD &  pod )

inlinestaticconstexpr

Friends And Related Symbol Documentation

operator!=

constexpr bool operator!= ( const slice &  a, const slice &  b  )

friend

operator<

constexpr bool operator< ( const slice &  a, const slice &  b  )

friend

operator<=

constexpr bool operator<= ( const slice &  a, const slice &  b  )

friend

operator==

constexpr bool operator== ( const slice &  a, const slice &  b  )

friend

operator>

constexpr bool operator> ( const slice &  a, const slice &  b  )

friend

operator>=

constexpr bool operator>= ( const slice &  a, const slice &  b  )

friend

mdbx::default_capacity_policy

struct mdbx::default_capacity_policy

Public Types
enum	: size_t { extra_inplace_storage = 0 , pettiness_threshold = 64 , max_reserve = 65536 }
Static Public Member Functions
static constexpr size_t	round (const size_t value)
static constexpr size_t	advise (const size_t current, const size_t wanna)

Member Enumeration Documentation

anonymous enum

anonymous enum : size_t

Enumerator
extra_inplace_storage
pettiness_threshold
max_reserve

Member Function Documentation

advise()

static constexpr size_t mdbx::default_capacity_policy::advise ( const size_t  current, const size_t  wanna  )

inlinestaticconstexpr

round()

static constexpr size_t mdbx::default_capacity_policy::round ( const size_t  value )

inlinestaticconstexpr

mdbx::to_hex

struct mdbx::to_hex

Hexadecimal encoder which satisfy SliceTranscoder concept.

Public Member Functions
constexpr	to_hex (const slice &source, bool uppercase=false, unsigned wrap_width=0) noexcept
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_string (const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a string with a hexadecimal dump of a passed slice.
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	as_buffer (const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a buffer with a hexadecimal dump of a passed slice.
constexpr size_t	envisage_result_length () const noexcept
	Returns the buffer size in bytes needed for hexadecimal dump of a passed slice.
char *	write_bytes (char *dest, size_t dest_size) const
	Fills the buffer by hexadecimal dump of a passed slice.
::std::ostream &	output (::std::ostream &out) const
	Output hexadecimal dump of passed slice to the std::ostream.
bool	is_empty () const noexcept
	Checks whether a passed slice is empty, and therefore there will be no output bytes.
bool	is_erroneous () const noexcept
	Checks whether the content of a passed slice is a valid data and could be encoded or unexpectedly not.
Public Attributes
const slice	source
const bool	uppercase = false
const unsigned	wrap_width = 0

Constructor & Destructor Documentation

to_hex()

constexpr mdbx::to_hex::to_hex ( const slice &  source, bool  uppercase = false, unsigned  wrap_width = 0  )

inlineconstexprnoexcept

Member Function Documentation

as_buffer()

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::to_hex::as_buffer ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Returns a buffer with a hexadecimal dump of a passed slice.

as_string()

template<class ALLOCATOR = default_allocator>

string< ALLOCATOR > mdbx::to_hex::as_string ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Returns a string with a hexadecimal dump of a passed slice.

envisage_result_length()

constexpr size_t mdbx::to_hex::envisage_result_length ( ) const

inlineconstexprnoexcept

Returns the buffer size in bytes needed for hexadecimal dump of a passed slice.

is_empty()

bool mdbx::to_hex::is_empty ( ) const

inlinenoexcept

Checks whether a passed slice is empty, and therefore there will be no output bytes.

is_erroneous()

bool mdbx::to_hex::is_erroneous ( ) const

inlinenoexcept

Checks whether the content of a passed slice is a valid data and could be encoded or unexpectedly not.

output()

::std::ostream & mdbx::to_hex::output

(

::std::ostream &

out

)

const

Output hexadecimal dump of passed slice to the std::ostream.

Exceptions

std::ios_base::failure

corresponding to std::ostream::write() behaviour.

write_bytes()

char * mdbx::to_hex::write_bytes	(	char *	dest,
		size_t	dest_size
	)		const

Fills the buffer by hexadecimal dump of a passed slice.

Exceptions

std::length_error

if given buffer is too small.

Member Data Documentation

source

const slice mdbx::to_hex::source

uppercase

const bool mdbx::to_hex::uppercase = false

wrap_width

const unsigned mdbx::to_hex::wrap_width = 0

mdbx::to_base58

struct mdbx::to_base58

Base58 encoder which satisfy SliceTranscoder concept.

Public Member Functions
constexpr	to_base58 (const slice &source, unsigned wrap_width=0) noexcept
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_string (const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a string with a Base58 dump of a passed slice.
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	as_buffer (const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a buffer with a Base58 dump of a passed slice.
constexpr size_t	envisage_result_length () const noexcept
	Returns the buffer size in bytes needed for Base58 dump of passed slice.
char *	write_bytes (char *dest, size_t dest_size) const
	Fills the buffer by Base58 dump of passed slice.
::std::ostream &	output (::std::ostream &out) const
	Output Base58 dump of passed slice to the std::ostream.
bool	is_empty () const noexcept
	Checks whether a passed slice is empty, and therefore there will be no output bytes.
bool	is_erroneous () const noexcept
	Checks whether the content of a passed slice is a valid data and could be encoded or unexpectedly not.
Public Attributes
const slice	source
const unsigned	wrap_width = 0

Constructor & Destructor Documentation

to_base58()

constexpr mdbx::to_base58::to_base58 ( const slice &  source, unsigned  wrap_width = 0  )

inlineconstexprnoexcept

Member Function Documentation

as_buffer()

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::to_base58::as_buffer ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Returns a buffer with a Base58 dump of a passed slice.

as_string()

template<class ALLOCATOR = default_allocator>

string< ALLOCATOR > mdbx::to_base58::as_string ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Returns a string with a Base58 dump of a passed slice.

envisage_result_length()

constexpr size_t mdbx::to_base58::envisage_result_length ( ) const

inlineconstexprnoexcept

Returns the buffer size in bytes needed for Base58 dump of passed slice.

is_empty()

bool mdbx::to_base58::is_empty ( ) const

inlinenoexcept

Checks whether a passed slice is empty, and therefore there will be no output bytes.

is_erroneous()

bool mdbx::to_base58::is_erroneous ( ) const

inlinenoexcept

Checks whether the content of a passed slice is a valid data and could be encoded or unexpectedly not.

output()

::std::ostream & mdbx::to_base58::output

(

::std::ostream &

out

)

const

Output Base58 dump of passed slice to the std::ostream.

Exceptions

std::ios_base::failure

corresponding to std::ostream::write() behaviour.

write_bytes()

char * mdbx::to_base58::write_bytes	(	char *	dest,
		size_t	dest_size
	)		const

Fills the buffer by Base58 dump of passed slice.

Exceptions

std::length_error

if given buffer is too small.

Member Data Documentation

source

const slice mdbx::to_base58::source

wrap_width

const unsigned mdbx::to_base58::wrap_width = 0

mdbx::to_base64

struct mdbx::to_base64

Base64 encoder which satisfy SliceTranscoder concept.

Public Member Functions
constexpr	to_base64 (const slice &source, unsigned wrap_width=0) noexcept
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_string (const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a string with a Base64 dump of a passed slice.
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	as_buffer (const ALLOCATOR &allocator=ALLOCATOR()) const
	Returns a buffer with a Base64 dump of a passed slice.
constexpr size_t	envisage_result_length () const noexcept
	Returns the buffer size in bytes needed for Base64 dump of passed slice.
char *	write_bytes (char *dest, size_t dest_size) const
	Fills the buffer by Base64 dump of passed slice.
::std::ostream &	output (::std::ostream &out) const
	Output Base64 dump of passed slice to the std::ostream.
bool	is_empty () const noexcept
	Checks whether a passed slice is empty, and therefore there will be no output bytes.
bool	is_erroneous () const noexcept
	Checks whether the content of a passed slice is a valid data and could be encoded or unexpectedly not.
Public Attributes
const slice	source
const unsigned	wrap_width = 0

Constructor & Destructor Documentation

to_base64()

constexpr mdbx::to_base64::to_base64 ( const slice &  source, unsigned  wrap_width = 0  )

inlineconstexprnoexcept

Member Function Documentation

as_buffer()

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::to_base64::as_buffer ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Returns a buffer with a Base64 dump of a passed slice.

as_string()

template<class ALLOCATOR = default_allocator>

string< ALLOCATOR > mdbx::to_base64::as_string ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Returns a string with a Base64 dump of a passed slice.

envisage_result_length()

constexpr size_t mdbx::to_base64::envisage_result_length ( ) const

inlineconstexprnoexcept

Returns the buffer size in bytes needed for Base64 dump of passed slice.

is_empty()

bool mdbx::to_base64::is_empty ( ) const

inlinenoexcept

Checks whether a passed slice is empty, and therefore there will be no output bytes.

is_erroneous()

bool mdbx::to_base64::is_erroneous ( ) const

inlinenoexcept

Checks whether the content of a passed slice is a valid data and could be encoded or unexpectedly not.

output()

::std::ostream & mdbx::to_base64::output

(

::std::ostream &

out

)

const

Output Base64 dump of passed slice to the std::ostream.

Exceptions

std::ios_base::failure

corresponding to std::ostream::write() behaviour.

write_bytes()

char * mdbx::to_base64::write_bytes	(	char *	dest,
		size_t	dest_size
	)		const

Fills the buffer by Base64 dump of passed slice.

Exceptions

std::length_error

if given buffer is too small.

Member Data Documentation

source

const slice mdbx::to_base64::source

wrap_width

const unsigned mdbx::to_base64::wrap_width = 0

mdbx::from_hex

struct mdbx::from_hex

Hexadecimal decoder which satisfy SliceTranscoder concept.

Public Member Functions
constexpr	from_hex (const slice &source, bool ignore_spaces=false) noexcept
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_string (const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes hexadecimal dump from a passed slice to returned string.
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	as_buffer (const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes hexadecimal dump from a passed slice to returned buffer.
constexpr size_t	envisage_result_length () const noexcept
	Returns the number of bytes needed for conversion hexadecimal dump from a passed slice to decoded data.
char *	write_bytes (char *dest, size_t dest_size) const
	Fills the destination with data decoded from hexadecimal dump from a passed slice.
bool	is_empty () const noexcept
	Checks whether a passed slice is empty, and therefore there will be no output bytes.
bool	is_erroneous () const noexcept
	Checks whether the content of a passed slice is a valid hexadecimal dump, and therefore there could be decoded or not.
Public Attributes
const slice	source
const bool	ignore_spaces = false

Constructor & Destructor Documentation

from_hex()

constexpr mdbx::from_hex::from_hex ( const slice &  source, bool  ignore_spaces = false  )

inlineconstexprnoexcept

Member Function Documentation

as_buffer()

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::from_hex::as_buffer ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Decodes hexadecimal dump from a passed slice to returned buffer.

as_string()

template<class ALLOCATOR = default_allocator>

string< ALLOCATOR > mdbx::from_hex::as_string ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Decodes hexadecimal dump from a passed slice to returned string.

envisage_result_length()

constexpr size_t mdbx::from_hex::envisage_result_length ( ) const

inlineconstexprnoexcept

Returns the number of bytes needed for conversion hexadecimal dump from a passed slice to decoded data.

is_empty()

bool mdbx::from_hex::is_empty ( ) const

inlinenoexcept

Checks whether a passed slice is empty, and therefore there will be no output bytes.

is_erroneous()

bool mdbx::from_hex::is_erroneous ( ) const

noexcept

Checks whether the content of a passed slice is a valid hexadecimal dump, and therefore there could be decoded or not.

write_bytes()

char * mdbx::from_hex::write_bytes	(	char *	dest,
		size_t	dest_size
	)		const

Fills the destination with data decoded from hexadecimal dump from a passed slice.

Exceptions

std::length_error

if given buffer is too small.

Member Data Documentation

ignore_spaces

const bool mdbx::from_hex::ignore_spaces = false

source

const slice mdbx::from_hex::source

mdbx::from_base58

struct mdbx::from_base58

Base58 decoder which satisfy SliceTranscoder concept.

Public Member Functions
constexpr	from_base58 (const slice &source, bool ignore_spaces=false) noexcept
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_string (const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes Base58 dump from a passed slice to returned string.
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	as_buffer (const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes Base58 dump from a passed slice to returned buffer.
constexpr size_t	envisage_result_length () const noexcept
	Returns the number of bytes needed for conversion Base58 dump from a passed slice to decoded data.
char *	write_bytes (char *dest, size_t dest_size) const
	Fills the destination with data decoded from Base58 dump from a passed slice.
bool	is_empty () const noexcept
	Checks whether a passed slice is empty, and therefore there will be no output bytes.
bool	is_erroneous () const noexcept
	Checks whether the content of a passed slice is a valid Base58 dump, and therefore there could be decoded or not.
Public Attributes
const slice	source
const bool	ignore_spaces = false

Constructor & Destructor Documentation

from_base58()

constexpr mdbx::from_base58::from_base58 ( const slice &  source, bool  ignore_spaces = false  )

inlineconstexprnoexcept

Member Function Documentation

as_buffer()

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::from_base58::as_buffer ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Decodes Base58 dump from a passed slice to returned buffer.

as_string()

template<class ALLOCATOR = default_allocator>

string< ALLOCATOR > mdbx::from_base58::as_string ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Decodes Base58 dump from a passed slice to returned string.

envisage_result_length()

constexpr size_t mdbx::from_base58::envisage_result_length ( ) const

inlineconstexprnoexcept

Returns the number of bytes needed for conversion Base58 dump from a passed slice to decoded data.

is_empty()

bool mdbx::from_base58::is_empty ( ) const

inlinenoexcept

Checks whether a passed slice is empty, and therefore there will be no output bytes.

is_erroneous()

bool mdbx::from_base58::is_erroneous ( ) const

noexcept

Checks whether the content of a passed slice is a valid Base58 dump, and therefore there could be decoded or not.

write_bytes()

char * mdbx::from_base58::write_bytes	(	char *	dest,
		size_t	dest_size
	)		const

Fills the destination with data decoded from Base58 dump from a passed slice.

Exceptions

std::length_error

if given buffer is too small.

Member Data Documentation

ignore_spaces

const bool mdbx::from_base58::ignore_spaces = false

source

const slice mdbx::from_base58::source

mdbx::from_base64

struct mdbx::from_base64

Base64 decoder which satisfy SliceTranscoder concept.

Public Member Functions
constexpr	from_base64 (const slice &source, bool ignore_spaces=false) noexcept
template<class ALLOCATOR = default_allocator>
string< ALLOCATOR >	as_string (const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes Base64 dump from a passed slice to returned string.
template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>
buffer< ALLOCATOR, CAPACITY_POLICY >	as_buffer (const ALLOCATOR &allocator=ALLOCATOR()) const
	Decodes Base64 dump from a passed slice to returned buffer.
constexpr size_t	envisage_result_length () const noexcept
	Returns the number of bytes needed for conversion Base64 dump from a passed slice to decoded data.
char *	write_bytes (char *dest, size_t dest_size) const
	Fills the destination with data decoded from Base64 dump from a passed slice.
bool	is_empty () const noexcept
	Checks whether a passed slice is empty, and therefore there will be no output bytes.
bool	is_erroneous () const noexcept
	Checks whether the content of a passed slice is a valid Base64 dump, and therefore there could be decoded or not.
Public Attributes
const slice	source
const bool	ignore_spaces = false

Constructor & Destructor Documentation

from_base64()

constexpr mdbx::from_base64::from_base64 ( const slice &  source, bool  ignore_spaces = false  )

inlineconstexprnoexcept

Member Function Documentation

as_buffer()

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::from_base64::as_buffer ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Decodes Base64 dump from a passed slice to returned buffer.

as_string()

template<class ALLOCATOR = default_allocator>

string< ALLOCATOR > mdbx::from_base64::as_string ( const ALLOCATOR &  allocator = ALLOCATOR() ) const

inline

Decodes Base64 dump from a passed slice to returned string.

envisage_result_length()

constexpr size_t mdbx::from_base64::envisage_result_length ( ) const

inlineconstexprnoexcept

Returns the number of bytes needed for conversion Base64 dump from a passed slice to decoded data.

is_empty()

bool mdbx::from_base64::is_empty ( ) const

inlinenoexcept

Checks whether a passed slice is empty, and therefore there will be no output bytes.

is_erroneous()

bool mdbx::from_base64::is_erroneous ( ) const

noexcept

Checks whether the content of a passed slice is a valid Base64 dump, and therefore there could be decoded or not.

write_bytes()

char * mdbx::from_base64::write_bytes	(	char *	dest,
		size_t	dest_size
	)		const

Fills the destination with data decoded from Base64 dump from a passed slice.

Exceptions

std::length_error

if given buffer is too small.

Member Data Documentation

ignore_spaces

const bool mdbx::from_base64::ignore_spaces = false

source

const slice mdbx::from_base64::source

mdbx::buffer

class mdbx::buffer

template<class ALLOCATOR, typename CAPACITY_POLICY>
class mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >

The chunk of data stored inside the buffer or located outside it.

Public Types
enum	: size_t { max_length = MDBX_MAXDATASIZE , max_capacity = (max_length / 3u * 4u + 1023u) & ~size_t(1023) , extra_inplace_storage = reservation_policy::extra_inplace_storage , pettiness_threshold = reservation_policy::pettiness_threshold }
using	allocator_type = typename ::std::allocator_traits< ALLOCATOR >::template rebind_alloc< uint64_t >
using	allocator_traits = ::std::allocator_traits< allocator_type >
using	reservation_policy = CAPACITY_POLICY
using	move_assign_alloc = allocation_aware_details::move_assign_alloc< silo, allocator_type >
using	copy_assign_alloc = allocation_aware_details::copy_assign_alloc< silo, allocator_type >
Public Member Functions
constexpr allocator_type	get_allocator () const
	Returns the associated allocator.
constexpr bool	is_freestanding () const noexcept
	Checks whether data chunk stored inside the buffer, otherwise buffer just refers to data located outside the buffer.
constexpr bool	is_reference () const noexcept
	Checks whether the buffer just refers to data located outside the buffer, rather than stores it.
constexpr size_t	capacity () const noexcept
	Returns the number of bytes that can be held in currently allocated storage.
constexpr size_t	headroom () const noexcept
	Returns the number of bytes that available in currently allocated storage ahead the currently beginning of data.
constexpr size_t	tailroom () const noexcept
	Returns the number of bytes that available in currently allocated storage after the currently data end.
constexpr const byte *	byte_ptr () const noexcept
	Returns casted to const pointer to byte an address of data.
constexpr const byte *	end_byte_ptr () const noexcept
	Returns casted to const pointer to byte an end of data.
constexpr byte *	byte_ptr () noexcept
	Returns casted to pointer to byte an address of data.
constexpr byte *	end_byte_ptr () noexcept
	Returns casted to pointer to byte an end of data.
constexpr const char *	char_ptr () const noexcept
	Returns casted to const pointer to char an address of data.
constexpr const char *	end_char_ptr () const noexcept
	Returns casted to const pointer to char an end of data.
constexpr char *	char_ptr () noexcept
	Returns casted to pointer to char an address of data.
constexpr char *	end_char_ptr () noexcept
	Returns casted to pointer to char an end of data.
constexpr const void *	data () const noexcept
	Return a const pointer to the beginning of the referenced data.
constexpr const void *	end () const noexcept
	Return a const pointer to the end of the referenced data.
constexpr void *	data () noexcept
	Return a pointer to the beginning of the referenced data.
constexpr void *	end () noexcept
	Return a pointer to the end of the referenced data.
constexpr size_t	length () const noexcept
	Returns the number of bytes.
constexpr buffer &	set_length (size_t bytes)
	Set length of data.
constexpr buffer &	set_end (const void *ptr)
	Sets the length by specifying the end of the data.
void	make_freestanding ()
	Makes buffer owning the data.
constexpr	buffer () noexcept=default
constexpr	buffer (const allocator_type &allocator) noexcept
	buffer (const struct slice &src, bool make_reference, const allocator_type &allocator=allocator_type())
	buffer (const buffer &src, bool make_reference, const allocator_type &allocator=allocator_type())
	buffer (const void *ptr, size_t bytes, bool make_reference, const allocator_type &allocator=allocator_type())
template<class CHAR , class T , class A >
	buffer (const ::std::basic_string< CHAR, T, A > &)=delete
template<class CHAR , class T , class A >
	buffer (const ::std::basic_string< CHAR, T, A > &&)=delete
	buffer (const char *c_str, bool make_reference, const allocator_type &allocator=allocator_type())
template<class CHAR , class T >
	buffer (const ::std::basic_string_view< CHAR, T > &view, bool make_reference, const allocator_type &allocator=allocator_type())
constexpr	buffer (const struct slice &src, const allocator_type &allocator=allocator_type())
constexpr	buffer (const buffer &src, const allocator_type &allocator=allocator_type())
constexpr	buffer (const void *ptr, size_t bytes, const allocator_type &allocator=allocator_type())
template<class CHAR , class T , class A >
constexpr	buffer (const ::std::basic_string< CHAR, T, A > &str, const allocator_type &allocator=allocator_type())
constexpr	buffer (const char *c_str, const allocator_type &allocator=allocator_type())
template<class CHAR , class T >
constexpr	buffer (const ::std::basic_string_view< CHAR, T > &view, const allocator_type &allocator=allocator_type())
	buffer (size_t head_room, size_t tail_room, const allocator_type &allocator=allocator_type())
	buffer (size_t capacity, const allocator_type &allocator=allocator_type())
	buffer (size_t head_room, const struct slice &src, size_t tail_room, const allocator_type &allocator=allocator_type())
	buffer (size_t head_room, const buffer &src, size_t tail_room, const allocator_type &allocator=allocator_type())
	buffer (const ::mdbx::txn &txn, const struct slice &src, const allocator_type &allocator=allocator_type())
	buffer (buffer &&src) noexcept(move_assign_alloc::is_nothrow())
constexpr const struct slice &	slice () const noexcept
constexpr	operator const struct slice & () const noexcept
template<typename POD >
constexpr	buffer (const ::std::span< POD > &span)
template<typename POD >
constexpr ::std::span< const POD >	as_span () const
template<typename POD >
constexpr ::std::span< POD >	as_span ()
constexpr ::std::span< const byte >	bytes () const
constexpr ::std::span< byte >	bytes ()
constexpr ::std::span< const char >	chars () const
constexpr ::std::span< char >	chars ()
template<typename POD >
constexpr POD	as_pod () const
constexpr uint128_t	as_uint128 () const
constexpr uint64_t	as_uint64 () const
constexpr uint32_t	as_uint32 () const
constexpr uint16_t	as_uint16 () const
constexpr uint8_t	as_uint8 () const
constexpr int128_t	as_int128 () const
constexpr int64_t	as_int64 () const
constexpr int32_t	as_int32 () const
constexpr int16_t	as_int16 () const
constexpr int8_t	as_int8 () const
uint128_t	as_uint128_adapt () const
uint64_t	as_uint64_adapt () const
uint32_t	as_uint32_adapt () const
uint16_t	as_uint16_adapt () const
uint8_t	as_uint8_adapt () const
int128_t	as_int128_adapt () const
int64_t	as_int64_adapt () const
int32_t	as_int32_adapt () const
int16_t	as_int16_adapt () const
int8_t	as_int8_adapt () const
buffer	encode_hex (bool uppercase=false, unsigned wrap_width=0, const allocator_type &allocator=allocator_type()) const
	Returns a new buffer with a hexadecimal dump of the slice content.
buffer	encode_base58 (unsigned wrap_width=0, const allocator_type &allocator=allocator_type()) const
	Returns a new buffer with a Base58 dump of the slice content.
buffer	encode_base64 (unsigned wrap_width=0, const allocator_type &allocator=allocator_type()) const
	Returns a new buffer with a Base64 dump of the slice content.
buffer	hex_decode (bool ignore_spaces=false, const allocator_type &allocator=allocator_type()) const
	Decodes hexadecimal dump from the buffer content to new returned buffer.
buffer	base58_decode (bool ignore_spaces=false, const allocator_type &allocator=allocator_type()) const
	Decodes Base58 dump from the buffer content to new returned buffer.
buffer	base64_decode (bool ignore_spaces=false, const allocator_type &allocator=allocator_type()) const
	Decodes Base64 dump from the buffer content to new returned buffer.
void	reserve (size_t wanna_headroom, size_t wanna_tailroom)
	Reserves storage space.
void	reserve_headroom (size_t wanna_headroom)
	Reserves space before the payload.
void	reserve_tailroom (size_t wanna_tailroom)
	Reserves space after the payload.
buffer &	assign_reference (const void *ptr, size_t bytes)
buffer &	assign_freestanding (const void *ptr, size_t bytes)
constexpr void	swap (buffer &other) noexcept(swap_alloc::is_nothrow())
buffer &	assign (const buffer &src, bool make_reference=false)
buffer &	assign (const void *ptr, size_t bytes, bool make_reference=false)
buffer &	assign (const struct slice &src, bool make_reference=false)
buffer &	assign (const ::MDBX_val &src, bool make_reference=false)
buffer &	assign (struct slice &&src, bool make_reference=false)
buffer &	assign (::MDBX_val &&src, bool make_reference=false)
buffer &	assign (const void *begin, const void *end, bool make_reference=false)
template<class CHAR , class T , class A >
buffer &	assign (const ::std::basic_string< CHAR, T, A > &str, bool make_reference=false)
buffer &	assign (const char *c_str, bool make_reference=false)
buffer &	operator= (const buffer &src)
buffer &	operator= (buffer &&src) noexcept(move_assign_alloc::is_nothrow())
buffer &	operator= (const struct slice &src)
buffer &	operator= (struct slice &&src)
template<class CHAR , class T >
buffer &	operator= (const ::std::basic_string_view< CHAR, T > &view) noexcept
template<class CHAR = char, class T = ::std::char_traits<CHAR>>
::std::basic_string_view< CHAR, T >	string_view () const noexcept
	Return a string_view that references the data of this buffer.
template<class CHAR , class T >
	operator::std::basic_string_view () const noexcept
	Return a string_view that references the data of this buffer.
constexpr bool	empty () const noexcept
	Checks whether the string is empty.
constexpr bool	is_null () const noexcept
	Checks whether the data pointer of the buffer is nullptr.
constexpr size_t	size () const noexcept
	Returns the number of bytes.
constexpr size_t	hash_value () const noexcept
	Returns the hash value of the data.
template<class CHAR = char, class T = ::std::char_traits<CHAR>, class A = legacy_allocator>
constexpr ::std::basic_string< CHAR, T, A >	as_string (const A &allocator=A()) const
template<class CHAR , class T , class A >
constexpr	operator::std::basic_string () const
bool	starts_with (const struct slice &prefix) const noexcept
	Checks if the data starts with the given prefix.
bool	ends_with (const struct slice &suffix) const noexcept
	Checks if the data ends with the given suffix.
void	clear () noexcept
	Clears the contents and storage.
void	clear_and_reserve (size_t whole_capacity, size_t headroom=0) noexcept
	Clears the contents and reserve storage.
void	shrink_to_fit ()
	Reduces memory usage by freeing unused storage space.
void	remove_prefix (size_t n) noexcept
	Drops the first "n" bytes from the data chunk.
void	remove_suffix (size_t n) noexcept
	Drops the last "n" bytes from the data chunk.
void	safe_remove_prefix (size_t n)
	Drops the first "n" bytes from the data chunk.
void	safe_remove_suffix (size_t n)
	Drops the last "n" bytes from the data chunk.
constexpr byte	operator[] (size_t n) const noexcept
	Accesses the specified byte of data chunk.
constexpr byte &	operator[] (size_t n) noexcept
	Accesses the specified byte of data chunk.
constexpr byte	at (size_t n) const
	Accesses the specified byte of data chunk with bounds checking.
constexpr byte &	at (size_t n)
	Accesses the specified byte of data chunk with bounds checking.
constexpr struct slice	head (size_t n) const noexcept
	Returns the first "n" bytes of the data chunk.
constexpr struct slice	tail (size_t n) const noexcept
	Returns the last "n" bytes of the data chunk.
constexpr struct slice	middle (size_t from, size_t n) const noexcept
	Returns the middle "n" bytes of the data chunk.
constexpr struct slice	safe_head (size_t n) const
	Returns the first "n" bytes of the data chunk.
constexpr struct slice	safe_tail (size_t n) const
	Returns the last "n" bytes of the data chunk.
constexpr struct slice	safe_middle (size_t from, size_t n) const
	Returns the middle "n" bytes of the data chunk.
buffer &	append (const void *src, size_t bytes)
buffer &	append (const struct slice &chunk)
buffer &	add_header (const void *src, size_t bytes)
buffer &	add_header (const struct slice &chunk)
template<MutableByteProducer PRODUCER>
buffer &	append_producer (PRODUCER &producer)
template<ImmutableByteProducer PRODUCER>
buffer &	append_producer (const PRODUCER &producer)
buffer &	append_hex (const struct slice &data, bool uppercase=false, unsigned wrap_width=0)
buffer &	append_base58 (const struct slice &data, unsigned wrap_width=0)
buffer &	append_base64 (const struct slice &data, unsigned wrap_width=0)
buffer &	append_decoded_hex (const struct slice &data, bool ignore_spaces=false)
buffer &	append_decoded_base58 (const struct slice &data, bool ignore_spaces=false)
buffer &	append_decoded_base64 (const struct slice &data, bool ignore_spaces=false)
buffer &	append_u8 (uint_fast8_t u8)
buffer &	append_byte (uint_fast8_t byte)
buffer &	append_u16 (uint_fast16_t u16)
buffer &	append_u24 (uint_fast32_t u24)
buffer &	append_u32 (uint_fast32_t u32)
buffer &	append_u48 (uint_fast64_t u48)
buffer &	append_u64 (uint_fast64_t u64)
template<class ALLOCATOR , typename CAPACITY_POLICY >
	buffer (const txn &txn, const struct slice &src, const allocator_type &allocator)
Static Public Member Functions
template<typename POD >
static buffer	wrap (const POD &pod, bool make_reference=false, const allocator_type &allocator=allocator_type())
static buffer	hex (const ::mdbx::slice &source, bool uppercase=false, unsigned wrap_width=0, const allocator_type &allocator=allocator_type())
	Returns a new buffer with a hexadecimal dump of the slice content.
static buffer	base58 (const ::mdbx::slice &source, unsigned wrap_width=0, const allocator_type &allocator=allocator_type())
	Returns a new buffer with a Base58 dump of the slice content.
static buffer	base64 (const ::mdbx::slice &source, unsigned wrap_width=0, const allocator_type &allocator=allocator_type())
	Returns a new buffer with a Base64 dump of the slice content.
template<typename POD >
static buffer	hex (const POD &pod, bool uppercase=false, unsigned wrap_width=0, const allocator_type &allocator=allocator_type())
	Returns a new buffer with a hexadecimal dump of the given pod.
template<typename POD >
static buffer	base58 (const POD &pod, unsigned wrap_width=0, const allocator_type &allocator=allocator_type())
	Returns a new buffer with a Base58 dump of the given pod.
template<typename POD >
static buffer	base64 (const POD &pod, unsigned wrap_width=0, const allocator_type &allocator=allocator_type())
	Returns a new buffer with a Base64 dump of the given pod.
static buffer	hex_decode (const ::mdbx::slice &source, bool ignore_spaces=false, const allocator_type &allocator=allocator_type())
	Decodes hexadecimal dump from the slice content to returned buffer.
static buffer	base58_decode (const ::mdbx::slice &source, bool ignore_spaces=false, const allocator_type &allocator=allocator_type())
	Decodes Base58 dump from the slice content to returned buffer.
static buffer	base64_decode (const ::mdbx::slice &source, bool ignore_spaces=false, const allocator_type &allocator=allocator_type())
	Decodes Base64 dump from the slice content to returned buffer.
static buffer	clone (const buffer &src, const allocator_type &allocator=allocator_type())
template<size_t SIZE>
static buffer	key_from (const char(&text)[SIZE], bool make_reference=true)
template<class CHAR , class T >
static buffer	key_from (const ::std::basic_string_view< CHAR, T > &src, bool make_reference=false)
static buffer	key_from (const char *src, bool make_reference=false)
template<class CHAR , class T , class A >
static buffer	key_from (const ::std::basic_string< CHAR, T, A > &src, bool make_reference=false)
static buffer	key_from (silo &&src) noexcept
static buffer	key_from_double (const double ieee754_64bit)
static buffer	key_from (const double ieee754_64bit)
static buffer	key_from (const double *ieee754_64bit)
static buffer	key_from_u64 (const uint64_t unsigned_int64)
static buffer	key_from (const uint64_t unsigned_int64)
static buffer	key_from_i64 (const int64_t signed_int64)
static buffer	key_from (const int64_t signed_int64)
static buffer	key_from_jsonInteger (const int64_t json_integer)
static buffer	key_from_float (const float ieee754_32bit)
static buffer	key_from (const float ieee754_32bit)
static buffer	key_from (const float *ieee754_32bit)
static buffer	key_from_u32 (const uint32_t unsigned_int32)
static buffer	key_from (const uint32_t unsigned_int32)
static buffer	key_from_i32 (const int32_t signed_int32)
static buffer	key_from (const int32_t signed_int32)
Friends
class	txn

Member Typedef Documentation

allocator_traits

template<class ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::allocator_traits = ::std::allocator_traits<allocator_type>

allocator_type

template<class ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::allocator_type = typename ::std::allocator_traits< ALLOCATOR>::template rebind_alloc<uint64_t>

copy_assign_alloc

template<class ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::copy_assign_alloc = allocation_aware_details::copy_assign_alloc<silo, allocator_type>

move_assign_alloc

template<class ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::move_assign_alloc = allocation_aware_details::move_assign_alloc<silo, allocator_type>

reservation_policy

template<class ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::reservation_policy = CAPACITY_POLICY

Member Enumeration Documentation

anonymous enum

template<class ALLOCATOR , typename CAPACITY_POLICY >

anonymous enum : size_t

Enumerator
max_length
max_capacity
extra_inplace_storage
pettiness_threshold

Constructor & Destructor Documentation

buffer() [1/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( )

constexprdefaultnoexcept

buffer() [2/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const allocator_type &  allocator )

inlineconstexprnoexcept

buffer() [3/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const struct slice &  src, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [4/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const buffer< ALLOCATOR, CAPACITY_POLICY > &  src, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [5/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const void *  ptr, size_t  bytes, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [6/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T , class A >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const ::std::basic_string< CHAR, T, A > &  )

delete

buffer() [7/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T , class A >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const ::std::basic_string< CHAR, T, A > &&  )

delete

buffer() [8/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const char *  c_str, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [9/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const ::std::basic_string_view< CHAR, T > &  view, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [10/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const struct slice &  src, const allocator_type &  allocator = allocator_type()  )

inlineconstexpr

buffer() [11/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const buffer< ALLOCATOR, CAPACITY_POLICY > &  src, const allocator_type &  allocator = allocator_type()  )

inlineconstexpr

buffer() [12/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const void *  ptr, size_t  bytes, const allocator_type &  allocator = allocator_type()  )

inlineconstexpr

buffer() [13/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T , class A >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const ::std::basic_string< CHAR, T, A > &  str, const allocator_type &  allocator = allocator_type()  )

inlineconstexpr

buffer() [14/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const char *  c_str, const allocator_type &  allocator = allocator_type()  )

inlineconstexpr

buffer() [15/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const ::std::basic_string_view< CHAR, T > &  view, const allocator_type &  allocator = allocator_type()  )

inlineconstexpr

buffer() [16/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( size_t  head_room, size_t  tail_room, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [17/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( size_t  capacity, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [18/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( size_t  head_room, const struct slice &  src, size_t  tail_room, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [19/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( size_t  head_room, const buffer< ALLOCATOR, CAPACITY_POLICY > &  src, size_t  tail_room, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [20/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const ::mdbx::txn &  txn, const struct slice &  src, const allocator_type &  allocator = allocator_type()  )

inline

buffer() [21/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( buffer< ALLOCATOR, CAPACITY_POLICY > &&  src )

inlinenoexcept

buffer() [22/22]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::buffer ( const ::std::span< POD > &  span )

inlineconstexpr

Member Function Documentation

add_header() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::add_header ( const struct slice &  chunk )

inline

add_header() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::add_header ( const void *  src, size_t  bytes  )

inline

append() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append ( const struct slice &  chunk )

inline

append() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append ( const void *  src, size_t  bytes  )

inline

append_base58()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_base58 ( const struct slice &  data, unsigned  wrap_width = 0  )

inline

append_base64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_base64 ( const struct slice &  data, unsigned  wrap_width = 0  )

inline

append_byte()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_byte ( uint_fast8_t  byte )

inline

append_decoded_base58()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_decoded_base58 ( const struct slice &  data, bool  ignore_spaces = false  )

inline

append_decoded_base64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_decoded_base64 ( const struct slice &  data, bool  ignore_spaces = false  )

inline

append_decoded_hex()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_decoded_hex ( const struct slice &  data, bool  ignore_spaces = false  )

inline

append_hex()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_hex ( const struct slice &  data, bool  uppercase = false, unsigned  wrap_width = 0  )

inline

append_producer() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<ImmutableByteProducer PRODUCER>

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_producer ( const PRODUCER &  producer )

inline

append_producer() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<MutableByteProducer PRODUCER>

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_producer ( PRODUCER &  producer )

inline

append_u16()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_u16 ( uint_fast16_t  u16 )

inline

append_u24()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_u24 ( uint_fast32_t  u24 )

inline

append_u32()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_u32 ( uint_fast32_t  u32 )

inline

append_u48()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_u48 ( uint_fast64_t  u48 )

inline

append_u64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_u64 ( uint_fast64_t  u64 )

inline

append_u8()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::append_u8 ( uint_fast8_t  u8 )

inline

as_int128()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr int128_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int128 ( ) const

inlineconstexpr

as_int128_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

int128_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int128_adapt ( ) const

inline

as_int16()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr int16_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int16 ( ) const

inlineconstexpr

as_int16_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

int16_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int16_adapt ( ) const

inline

as_int32()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr int32_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int32 ( ) const

inlineconstexpr

as_int32_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

int32_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int32_adapt ( ) const

inline

as_int64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr int64_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int64 ( ) const

inlineconstexpr

as_int64_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

int64_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int64_adapt ( ) const

inline

as_int8()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr int8_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int8 ( ) const

inlineconstexpr

as_int8_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

int8_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_int8_adapt ( ) const

inline

as_pod()

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

constexpr POD mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_pod ( ) const

inlineconstexpr

as_span() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

constexpr ::std::span< POD > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_span ( )

inlineconstexpr

as_span() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

constexpr ::std::span< const POD > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_span ( ) const

inline

as_string()

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR = char, class T = ::std::char_traits<CHAR>, class A = legacy_allocator>

constexpr ::std::basic_string< CHAR, T, A > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_string ( const A &  allocator = A() ) const

inline

as_uint128()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr uint128_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint128 ( ) const

inlineconstexpr

as_uint128_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

uint128_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint128_adapt ( ) const

inline

as_uint16()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr uint16_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint16 ( ) const

inlineconstexpr

as_uint16_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

uint16_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint16_adapt ( ) const

inline

as_uint32()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr uint32_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint32 ( ) const

inlineconstexpr

as_uint32_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

uint32_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint32_adapt ( ) const

inline

as_uint64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr uint64_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint64 ( ) const

inlineconstexpr

as_uint64_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

uint64_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint64_adapt ( ) const

inline

as_uint8()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr uint8_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint8 ( ) const

inlineconstexpr

as_uint8_adapt()

template<class ALLOCATOR , typename CAPACITY_POLICY >

uint8_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::as_uint8_adapt ( ) const

inline

assign() [1/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( ::MDBX_val &&  src, bool  make_reference = false  )

inline

assign() [2/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( const ::MDBX_val &  src, bool  make_reference = false  )

inline

assign() [3/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T , class A >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( const ::std::basic_string< CHAR, T, A > &  str, bool  make_reference = false  )

inline

assign() [4/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( const buffer< ALLOCATOR, CAPACITY_POLICY > &  src, bool  make_reference = false  )

inline

assign() [5/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( const char *  c_str, bool  make_reference = false  )

inline

assign() [6/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( const struct slice &  src, bool  make_reference = false  )

inline

assign() [7/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( const void *  begin, const void *  end, bool  make_reference = false  )

inline

assign() [8/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( const void *  ptr, size_t  bytes, bool  make_reference = false  )

inline

assign() [9/9]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign ( struct slice &&  src, bool  make_reference = false  )

inline

assign_freestanding()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign_freestanding ( const void *  ptr, size_t  bytes  )

inline

assign_reference()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::assign_reference ( const void *  ptr, size_t  bytes  )

inline

at() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr byte & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::at ( size_t  n )

inlineconstexpr

Accesses the specified byte of data chunk with bounds checking.

Exceptions

std::out_of_range

if n >= size()

at() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr byte mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::at ( size_t  n ) const

inlineconstexpr

Accesses the specified byte of data chunk with bounds checking.

Exceptions

std::out_of_range

if n >= size()

base58() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base58 ( const ::mdbx::slice &  source, unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Returns a new buffer with a Base58 dump of the slice content.

base58() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base58 ( const POD &  pod, unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Returns a new buffer with a Base58 dump of the given pod.

base58_decode() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base58_decode ( bool  ignore_spaces = false, const allocator_type &  allocator = allocator_type()  ) const

inline

Decodes Base58 dump from the buffer content to new returned buffer.

base58_decode() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base58_decode ( const ::mdbx::slice &  source, bool  ignore_spaces = false, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Decodes Base58 dump from the slice content to returned buffer.

base64() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base64 ( const ::mdbx::slice &  source, unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Returns a new buffer with a Base64 dump of the slice content.

base64() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base64 ( const POD &  pod, unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Returns a new buffer with a Base64 dump of the given pod.

base64_decode() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base64_decode ( bool  ignore_spaces = false, const allocator_type &  allocator = allocator_type()  ) const

inline

Decodes Base64 dump from the buffer content to new returned buffer.

base64_decode() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::base64_decode ( const ::mdbx::slice &  source, bool  ignore_spaces = false, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Decodes Base64 dump from the slice content to returned buffer.

byte_ptr() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr const byte * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::byte_ptr ( ) const

inlineconstexprnoexcept

Returns casted to const pointer to byte an address of data.

byte_ptr() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr byte * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::byte_ptr ( )

inlineconstexprnoexcept

Returns casted to pointer to byte an address of data.

Precondition

REQUIRES: The buffer should store data chunk, but not referenced to an external one.

bytes() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr ::std::span< byte > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::bytes ( )

inline

bytes() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr ::std::span< const byte > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::bytes ( ) const

inline

capacity()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr size_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::capacity ( ) const

inlineconstexprnoexcept

Returns the number of bytes that can be held in currently allocated storage.

char_ptr() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr const char * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::char_ptr ( ) const

inlineconstexprnoexcept

Returns casted to const pointer to char an address of data.

char_ptr() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr char * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::char_ptr ( )

inlineconstexprnoexcept

Returns casted to pointer to char an address of data.

Precondition

REQUIRES: The buffer should store data chunk, but not referenced to an external one.

chars() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr ::std::span< char > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::chars ( )

inline

chars() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr ::std::span< const char > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::chars ( ) const

inline

clear()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::clear ( )

inlinenoexcept

Clears the contents and storage.

clear_and_reserve()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::clear_and_reserve ( size_t  whole_capacity, size_t  headroom = 0  )

inlinenoexcept

Clears the contents and reserve storage.

clone()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::clone ( const buffer< ALLOCATOR, CAPACITY_POLICY > &  src, const allocator_type &  allocator = allocator_type()  )

inlinestatic

data() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr const void * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::data ( ) const

inlineconstexprnoexcept

Return a const pointer to the beginning of the referenced data.

data() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr void * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::data ( )

inlineconstexprnoexcept

Return a pointer to the beginning of the referenced data.

Precondition

REQUIRES: The buffer should store data chunk, but not referenced to an external one.

empty()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr bool mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::empty ( ) const

inlineconstexprnoexcept

Checks whether the string is empty.

encode_base58()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::encode_base58 ( unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  ) const

inline

Returns a new buffer with a Base58 dump of the slice content.

encode_base64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::encode_base64 ( unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  ) const

inline

Returns a new buffer with a Base64 dump of the slice content.

encode_hex()

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::encode_hex ( bool  uppercase = false, unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  ) const

inline

Returns a new buffer with a hexadecimal dump of the slice content.

end() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr const void * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::end ( ) const

inlineconstexprnoexcept

Return a const pointer to the end of the referenced data.

end() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr void * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::end ( )

inlineconstexprnoexcept

Return a pointer to the end of the referenced data.

Precondition

REQUIRES: The buffer should store data chunk, but not referenced to an external one.

end_byte_ptr() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr const byte * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::end_byte_ptr ( ) const

inlineconstexprnoexcept

Returns casted to const pointer to byte an end of data.

end_byte_ptr() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr byte * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::end_byte_ptr ( )

inlineconstexprnoexcept

Returns casted to pointer to byte an end of data.

Precondition

REQUIRES: The buffer should store data chunk, but not referenced to an external one.

end_char_ptr() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr const char * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::end_char_ptr ( ) const

inlineconstexprnoexcept

Returns casted to const pointer to char an end of data.

end_char_ptr() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr char * mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::end_char_ptr ( )

inlineconstexprnoexcept

Returns casted to pointer to char an end of data.

Precondition

REQUIRES: The buffer should store data chunk, but not referenced to an external one.

ends_with()

template<class ALLOCATOR , typename CAPACITY_POLICY >

bool mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::ends_with ( const struct slice &  suffix ) const

inlinenoexcept

Checks if the data ends with the given suffix.

get_allocator()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr allocator_type mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::get_allocator ( ) const

inlineconstexpr

Returns the associated allocator.

hash_value()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr size_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::hash_value ( ) const

inlineconstexprnoexcept

Returns the hash value of the data.

Attention

Function implementation and returned hash values may changed version to version, and in future the t1ha3 will be used here. Therefore values obtained from this function shouldn't be persisted anywhere.

head()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr struct slice mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::head ( size_t  n ) const

inlinenoexcept

Returns the first "n" bytes of the data chunk.

Precondition

REQUIRES: n <= size()

headroom()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr size_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::headroom ( ) const

inlineconstexprnoexcept

Returns the number of bytes that available in currently allocated storage ahead the currently beginning of data.

hex() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::hex ( const ::mdbx::slice &  source, bool  uppercase = false, unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Returns a new buffer with a hexadecimal dump of the slice content.

hex() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::hex ( const POD &  pod, bool  uppercase = false, unsigned  wrap_width = 0, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Returns a new buffer with a hexadecimal dump of the given pod.

hex_decode() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::hex_decode ( bool  ignore_spaces = false, const allocator_type &  allocator = allocator_type()  ) const

inline

Decodes hexadecimal dump from the buffer content to new returned buffer.

hex_decode() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::hex_decode ( const ::mdbx::slice &  source, bool  ignore_spaces = false, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Decodes hexadecimal dump from the slice content to returned buffer.

is_freestanding()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr bool mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::is_freestanding ( ) const

inlineconstexprnoexcept

Checks whether data chunk stored inside the buffer, otherwise buffer just refers to data located outside the buffer.

is_null()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr bool mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::is_null ( ) const

inlineconstexprnoexcept

Checks whether the data pointer of the buffer is nullptr.

is_reference()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr bool mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::is_reference ( ) const

inlineconstexprnoexcept

Checks whether the buffer just refers to data located outside the buffer, rather than stores it.

key_from() [1/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T , class A >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const ::std::basic_string< CHAR, T, A > &  src, bool  make_reference = false  )

inlinestatic

key_from() [2/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const ::std::basic_string_view< CHAR, T > &  src, bool  make_reference = false  )

inlinestatic

key_from() [3/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const char *  src, bool  make_reference = false  )

inlinestatic

key_from() [4/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<size_t SIZE>

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const char(&)  text[SIZE], bool  make_reference = true  )

inlinestatic

key_from() [5/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const double *  ieee754_64bit )

inlinestatic

key_from() [6/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const double  ieee754_64bit )

inlinestatic

key_from() [7/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const float *  ieee754_32bit )

inlinestatic

key_from() [8/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const float  ieee754_32bit )

inlinestatic

key_from() [9/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const int32_t  signed_int32 )

inlinestatic

key_from() [10/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const int64_t  signed_int64 )

inlinestatic

key_from() [11/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const uint32_t  unsigned_int32 )

inlinestatic

key_from() [12/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( const uint64_t  unsigned_int64 )

inlinestatic

key_from() [13/13]

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from ( silo &&  src )

inlinestaticnoexcept

key_from_double()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from_double ( const double  ieee754_64bit )

inlinestatic

key_from_float()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from_float ( const float  ieee754_32bit )

inlinestatic

key_from_i32()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from_i32 ( const int32_t  signed_int32 )

inlinestatic

key_from_i64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from_i64 ( const int64_t  signed_int64 )

inlinestatic

key_from_jsonInteger()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from_jsonInteger ( const int64_t  json_integer )

inlinestatic

key_from_u32()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from_u32 ( const uint32_t  unsigned_int32 )

inlinestatic

key_from_u64()

template<class ALLOCATOR , typename CAPACITY_POLICY >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::key_from_u64 ( const uint64_t  unsigned_int64 )

inlinestatic

length()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr size_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::length ( ) const

inlineconstexprnoexcept

Returns the number of bytes.

make_freestanding()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::make_freestanding ( )

inline

Makes buffer owning the data.

If buffer refers to an external data, then makes it the owner of clone by allocating storage and copying the data.

middle()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr struct slice mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::middle ( size_t  from, size_t  n  ) const

inlinenoexcept

Returns the middle "n" bytes of the data chunk.

Precondition

REQUIRES: from + n <= size()

operator const struct slice &()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator const struct slice & ( ) const

inlineconstexprnoexcept

operator::std::basic_string()

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T , class A >

constexpr mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator::std::basic_string ( ) const

inlineexplicitconstexpr

operator::std::basic_string_view()

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T >

mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator::std::basic_string_view ( ) const

inlinenoexcept

Return a string_view that references the data of this buffer.

operator=() [1/5]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator= ( buffer< ALLOCATOR, CAPACITY_POLICY > &&  src )

inlinenoexcept

operator=() [2/5]

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR , class T >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator= ( const ::std::basic_string_view< CHAR, T > &  view )

inlinenoexcept

operator=() [3/5]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator= ( const buffer< ALLOCATOR, CAPACITY_POLICY > &  src )

inline

operator=() [4/5]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator= ( const struct slice &  src )

inline

operator=() [5/5]

template<class ALLOCATOR , typename CAPACITY_POLICY >

buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator= ( struct slice &&  src )

inline

operator[]() [1/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr byte mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator[] ( size_t  n ) const

inlineconstexprnoexcept

Accesses the specified byte of data chunk.

Precondition

REQUIRES: n < size()

operator[]() [2/2]

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr byte & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::operator[] ( size_t  n )

inlineconstexprnoexcept

Accesses the specified byte of data chunk.

Precondition

REQUIRES: n < size()

remove_prefix()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::remove_prefix ( size_t  n )

inlinenoexcept

Drops the first "n" bytes from the data chunk.

Precondition

REQUIRES: n <= size()

remove_suffix()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::remove_suffix ( size_t  n )

inlinenoexcept

Drops the last "n" bytes from the data chunk.

Precondition

REQUIRES: n <= size()

reserve()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::reserve ( size_t  wanna_headroom, size_t  wanna_tailroom  )

inline

Reserves storage space.

reserve_headroom()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::reserve_headroom ( size_t  wanna_headroom )

inline

Reserves space before the payload.

reserve_tailroom()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::reserve_tailroom ( size_t  wanna_tailroom )

inline

Reserves space after the payload.

safe_head()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr struct slice mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::safe_head ( size_t  n ) const

inline

Returns the first "n" bytes of the data chunk.

Exceptions

std::out_of_range

if n >= size()

safe_middle()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr struct slice mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::safe_middle ( size_t  from, size_t  n  ) const

inline

Returns the middle "n" bytes of the data chunk.

Exceptions

std::out_of_range

if from + n >= size()

safe_remove_prefix()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::safe_remove_prefix ( size_t  n )

inline

Drops the first "n" bytes from the data chunk.

Exceptions

std::out_of_range

if n > size()

safe_remove_suffix()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::safe_remove_suffix ( size_t  n )

inline

Drops the last "n" bytes from the data chunk.

Exceptions

std::out_of_range

if n > size()

safe_tail()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr struct slice mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::safe_tail ( size_t  n ) const

inline

Returns the last "n" bytes of the data chunk.

Exceptions

std::out_of_range

if n >= size()

set_end()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::set_end ( const void *  ptr )

inlineconstexpr

Sets the length by specifying the end of the data.

set_length()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr buffer & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::set_length ( size_t  bytes )

inlineconstexpr

Set length of data.

shrink_to_fit()

template<class ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::shrink_to_fit ( )

inline

Reduces memory usage by freeing unused storage space.

size()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr size_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::size ( ) const

inlineconstexprnoexcept

Returns the number of bytes.

slice()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr const struct slice & mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::slice ( ) const

inlinenoexcept

starts_with()

template<class ALLOCATOR , typename CAPACITY_POLICY >

bool mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::starts_with ( const struct slice &  prefix ) const

inlinenoexcept

Checks if the data starts with the given prefix.

string_view()

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<class CHAR = char, class T = ::std::char_traits<CHAR>>

::std::basic_string_view< CHAR, T > mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::string_view ( ) const

inlinenoexcept

Return a string_view that references the data of this buffer.

swap()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr void mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::swap ( buffer< ALLOCATOR, CAPACITY_POLICY > &  other )

inlineconstexprnoexcept

tail()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr struct slice mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::tail ( size_t  n ) const

inlinenoexcept

Returns the last "n" bytes of the data chunk.

Precondition

REQUIRES: n <= size()

tailroom()

template<class ALLOCATOR , typename CAPACITY_POLICY >

constexpr size_t mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::tailroom ( ) const

inlineconstexprnoexcept

Returns the number of bytes that available in currently allocated storage after the currently data end.

wrap()

template<class ALLOCATOR , typename CAPACITY_POLICY >

template<typename POD >

static buffer mdbx::buffer< ALLOCATOR, CAPACITY_POLICY >::wrap ( const POD &  pod, bool  make_reference = false, const allocator_type &  allocator = allocator_type()  )

inlinestatic

Friends And Related Symbol Documentation

txn

template<class ALLOCATOR , typename CAPACITY_POLICY >

friend class txn

friend

mdbx::value_result

struct mdbx::value_result

Combines data slice with boolean flag to represent result of certain operations.

Public Member Functions
	value_result (const slice &value, bool done) noexcept
	value_result (const value_result &) noexcept=default
value_result &	operator= (const value_result &) noexcept=default
Public Attributes
slice	value
bool	done

Constructor & Destructor Documentation

value_result() [1/2]

mdbx::value_result::value_result ( const slice &  value, bool  done  )

inlinenoexcept

value_result() [2/2]

mdbx::value_result::value_result ( const value_result &  )

defaultnoexcept

Member Function Documentation

operator=()

value_result & mdbx::value_result::operator= ( const value_result &  )

defaultnoexcept

Member Data Documentation

done

bool mdbx::value_result::done

value

slice mdbx::value_result::value

mdbx::pair

struct mdbx::pair

Combines pair of slices for key and value to represent result of certain operations.

Inherited by mdbx::cursor::estimate_result, and mdbx::pair_result.

Public Types
using	stl_pair = std::pair< slice, slice >
Public Member Functions
constexpr	pair (const slice &key, const slice &value) noexcept
constexpr	pair (const stl_pair &couple) noexcept
constexpr	operator stl_pair () const noexcept
	pair (const pair &) noexcept=default
pair &	operator= (const pair &) noexcept=default
Static Public Member Functions
static constexpr pair	invalid () noexcept
static constexpr intptr_t	compare_fast (const pair &a, const pair &b) noexcept
	Three-way fast non-lexicographically length-based comparison.
static constexpr intptr_t	compare_lexicographically (const pair &a, const pair &b) noexcept
	Three-way lexicographically comparison.
Public Attributes
slice	key
slice	value
Friends
constexpr bool	operator== (const pair &a, const pair &b) noexcept
constexpr bool	operator< (const pair &a, const pair &b) noexcept
constexpr bool	operator> (const pair &a, const pair &b) noexcept
constexpr bool	operator<= (const pair &a, const pair &b) noexcept
constexpr bool	operator>= (const pair &a, const pair &b) noexcept
constexpr bool	operator!= (const pair &a, const pair &b) noexcept

Member Typedef Documentation

stl_pair

using mdbx::pair::stl_pair = std::pair<slice, slice>

Constructor & Destructor Documentation

pair() [1/3]

constexpr mdbx::pair::pair ( const slice &  key, const slice &  value  )

inlineconstexprnoexcept

pair() [2/3]

constexpr mdbx::pair::pair ( const stl_pair &  couple )

inlineconstexprnoexcept

pair() [3/3]

mdbx::pair::pair ( const pair &  )

defaultnoexcept

Member Function Documentation

invalid()

static constexpr pair mdbx::pair::invalid ( )

inlinestaticconstexprnoexcept

operator stl_pair()

constexpr mdbx::pair::operator stl_pair ( ) const

inlineconstexprnoexcept

operator=()

pair & mdbx::pair::operator= ( const pair &  )

defaultnoexcept

Friends And Related Symbol Documentation

operator!=

constexpr bool operator!= ( const pair &  a, const pair &  b  )

friend

operator<

constexpr bool operator< ( const pair &  a, const pair &  b  )

friend

operator<=

constexpr bool operator<= ( const pair &  a, const pair &  b  )

friend

operator==

constexpr bool operator== ( const pair &  a, const pair &  b  )

friend

operator>

constexpr bool operator> ( const pair &  a, const pair &  b  )

friend

operator>=

constexpr bool operator>= ( const pair &  a, const pair &  b  )

friend

Member Data Documentation

key

slice mdbx::pair::key

value

slice mdbx::pair::value

mdbx::pair_result

struct mdbx::pair_result

Combines pair of slices for key and value with boolean flag to represent result of certain operations.

Inherits mdbx::pair.

Inherited by mdbx::cursor::move_result.

Public Member Functions
constexpr	pair_result () noexcept
constexpr	pair_result (const slice &key, const slice &value, bool done) noexcept
	pair_result (const pair_result &) noexcept=default
pair_result &	operator= (const pair_result &) noexcept=default
Public Member Functions inherited from mdbx::pair
constexpr	pair (const slice &key, const slice &value) noexcept
constexpr	pair (const stl_pair &couple) noexcept
constexpr	operator stl_pair () const noexcept
	pair (const pair &) noexcept=default
pair &	operator= (const pair &) noexcept=default
Public Attributes
bool	done
Public Attributes inherited from mdbx::pair
slice	key
slice	value

Additional Inherited Members
Public Types inherited from mdbx::pair
using	stl_pair = std::pair< slice, slice >
Static Public Member Functions inherited from mdbx::pair
static constexpr pair	invalid () noexcept
static constexpr intptr_t	compare_fast (const pair &a, const pair &b) noexcept
	Three-way fast non-lexicographically length-based comparison.
static constexpr intptr_t	compare_lexicographically (const pair &a, const pair &b) noexcept
	Three-way lexicographically comparison.

Constructor & Destructor Documentation

pair_result() [1/3]

constexpr mdbx::pair_result::pair_result ( )

inlineconstexprnoexcept

pair_result() [2/3]

constexpr mdbx::pair_result::pair_result ( const slice &  key, const slice &  value, bool  done  )

inlineconstexprnoexcept

pair_result() [3/3]

mdbx::pair_result::pair_result ( const pair_result &  )

defaultnoexcept

Member Function Documentation

operator=()

pair_result & mdbx::pair_result::operator= ( const pair_result &  )

defaultnoexcept

Member Data Documentation

done

bool mdbx::pair_result::done

mdbx::buffer_pair_spec

struct mdbx::buffer_pair_spec

template<typename ALLOCATOR, typename CAPACITY_POLICY>
struct mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >

Public Types
using	buffer_type = buffer< ALLOCATOR, CAPACITY_POLICY >
using	allocator_type = typename buffer_type::allocator_type
using	allocator_traits = typename buffer_type::allocator_traits
using	reservation_policy = CAPACITY_POLICY
using	stl_pair = ::std::pair< buffer_type, buffer_type >
Public Member Functions
constexpr	buffer_pair_spec () noexcept=default
constexpr	buffer_pair_spec (const allocator_type &allocator) noexcept
	buffer_pair_spec (const buffer_type &key, const buffer_type &value, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const buffer_type &key, const buffer_type &value, bool make_reference, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const stl_pair &pair, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const stl_pair &pair, bool make_reference, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const slice &key, const slice &value, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const slice &key, const slice &value, bool make_reference, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const pair &pair, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const pair &pair, bool make_reference, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const txn &txn, const slice &key, const slice &value, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (const txn &txn, const pair &pair, const allocator_type &allocator=allocator_type())
	buffer_pair_spec (buffer_type &&key, buffer_type &&value) noexcept(buffer_type::move_assign_alloc::is_nothrow())
	buffer_pair_spec (buffer_pair_spec &&pair) noexcept(buffer_type::move_assign_alloc::is_nothrow())
constexpr bool	is_freestanding () const noexcept
	Checks whether data chunk stored inside the buffers both, otherwise at least one of buffers just refers to data located outside.
constexpr bool	is_reference () const noexcept
	Checks whether one of the buffers just refers to data located outside the buffer, rather than stores it.
void	make_freestanding ()
	Makes buffers owning the data.
	operator pair () const noexcept
Public Attributes
buffer_type	key
buffer_type	value

Member Typedef Documentation

allocator_traits

template<typename ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::allocator_traits = typename buffer_type::allocator_traits

allocator_type

template<typename ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::allocator_type = typename buffer_type::allocator_type

buffer_type

template<typename ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_type = buffer<ALLOCATOR, CAPACITY_POLICY>

reservation_policy

template<typename ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::reservation_policy = CAPACITY_POLICY

stl_pair

template<typename ALLOCATOR , typename CAPACITY_POLICY >

using mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::stl_pair = ::std::pair<buffer_type, buffer_type>

Constructor & Destructor Documentation

buffer_pair_spec() [1/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( )

constexprdefaultnoexcept

buffer_pair_spec() [2/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

constexpr mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const allocator_type &  allocator )

inlineconstexprnoexcept

buffer_pair_spec() [3/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const buffer_type &  key, const buffer_type &  value, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [4/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const buffer_type &  key, const buffer_type &  value, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [5/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const stl_pair &  pair, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [6/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const stl_pair &  pair, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [7/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const slice &  key, const slice &  value, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [8/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const slice &  key, const slice &  value, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [9/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const pair &  pair, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [10/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const pair &  pair, bool  make_reference, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [11/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const txn &  txn, const slice &  key, const slice &  value, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [12/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( const txn &  txn, const pair &  pair, const allocator_type &  allocator = allocator_type()  )

inline

buffer_pair_spec() [13/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( buffer_type &&  key, buffer_type &&  value  )

inlinenoexcept

buffer_pair_spec() [14/14]

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::buffer_pair_spec ( buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY > &&  pair )

inlinenoexcept

Member Function Documentation

is_freestanding()

template<typename ALLOCATOR , typename CAPACITY_POLICY >

constexpr bool mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::is_freestanding ( ) const

inlineconstexprnoexcept

Checks whether data chunk stored inside the buffers both, otherwise at least one of buffers just refers to data located outside.

is_reference()

template<typename ALLOCATOR , typename CAPACITY_POLICY >

constexpr bool mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::is_reference ( ) const

inlineconstexprnoexcept

Checks whether one of the buffers just refers to data located outside the buffer, rather than stores it.

make_freestanding()

template<typename ALLOCATOR , typename CAPACITY_POLICY >

void mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::make_freestanding ( )

inline

Makes buffers owning the data.

If buffer refers to an external data, then makes it the owner of clone by allocating storage and copying the data.

operator pair()

template<typename ALLOCATOR , typename CAPACITY_POLICY >

mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::operator pair ( ) const

inlinenoexcept

Member Data Documentation

key

template<typename ALLOCATOR , typename CAPACITY_POLICY >

buffer_type mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::key

value

template<typename ALLOCATOR , typename CAPACITY_POLICY >

buffer_type mdbx::buffer_pair_spec< ALLOCATOR, CAPACITY_POLICY >::value

MutableByteProducer

interface MutableByteProducer

MutableByteProducer C++20 concept.

ImmutableByteProducer

interface ImmutableByteProducer

ImmutableByteProducer C++20 concept.

SliceTranscoder

interface SliceTranscoder

SliceTranscoder C++20 concept.

Typedef Documentation

buffer_pair

template<typename BUFFER >

using mdbx::buffer_pair = typedef buffer_pair_spec<typename BUFFER::allocator_type, typename BUFFER::reservation_policy>

Function Documentation

make_buffer() [1/2]

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy, ImmutableByteProducer PRODUCER>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::make_buffer ( const PRODUCER &  producer, const ALLOCATOR &  allocator = ALLOCATOR()  )

inline

make_buffer() [2/2]

template<class ALLOCATOR = default_allocator, typename CAPACITY_POLICY = default_capacity_policy, MutableByteProducer PRODUCER>

buffer< ALLOCATOR, CAPACITY_POLICY > mdbx::make_buffer ( PRODUCER &  producer, const ALLOCATOR &  allocator = ALLOCATOR()  )

inline

make_string() [1/2]

template<class ALLOCATOR = default_allocator, ImmutableByteProducer PRODUCER>

string< ALLOCATOR > mdbx::make_string ( const PRODUCER &  producer, const ALLOCATOR &  allocator = ALLOCATOR()  )

inline

make_string() [2/2]

template<class ALLOCATOR = default_allocator, MutableByteProducer PRODUCER>

string< ALLOCATOR > mdbx::make_string ( PRODUCER &  producer, const ALLOCATOR &  allocator = ALLOCATOR()  )

inline

operator<<() [1/3]

inline ::std::ostream & mdbx::operator<<	(	::std::ostream &	out,
		const to_base58 &	wrapper
	)

operator<<() [2/3]

inline ::std::ostream & mdbx::operator<<	(	::std::ostream &	out,
		const to_base64 &	wrapper
	)

operator<<() [3/3]

inline ::std::ostream & mdbx::operator<<	(	::std::ostream &	out,
		const to_hex &	wrapper
	)