pqxx::byte_char_traits Struct Reference

Custom std::char_trast if the compiler does not provide one. More...

#include <util.hxx>

Inheritance diagram for pqxx::byte_char_traits:

Collaboration diagram for pqxx::byte_char_traits:

Public Types
using	char_type = std::byte

Static Public Member Functions
static void	assign (std::byte &a, const std::byte &b) noexcept
static bool	eq (std::byte a, std::byte b)
static bool	lt (std::byte a, std::byte b)
static int	compare (const std::byte *a, const std::byte *b, std::size_t size)
static size_t	length (const std::byte *data)
	Deliberately undefined: "guess" the length of an array of bytes. More...
static PQXX_RETURNS_NONNULL const std::byte *	find (const std::byte *data, std::size_t size, const std::byte &value)
static PQXX_RETURNS_NONNULL std::byte *	move (std::byte *dest, const std::byte *src, std::size_t size)
static PQXX_RETURNS_NONNULL std::byte *	copy (std::byte *dest, const std::byte *src, std::size_t size)
static PQXX_RETURNS_NONNULL std::byte *	assign (std::byte *dest, std::size_t size, std::byte value)
static int_type	not_eof (int_type value)
	Declared but not defined: makes no sense for binary data. More...
static std::byte	to_char_type (int_type value)
static int_type	to_int_type (std::byte value)
static bool	eq_int_type (int_type a, int_type b)
static int_type	eof ()
	Declared but not defined: makes no sense for binary data. More...

Detailed Description

Custom std::char_trast if the compiler does not provide one.

Needed for strings of bytes if the standard library lacks a generic implementation or a specialisation for std::byte. They aren't strictly required to provide either, and libc++ 19 removed its generic implementation.

Deprecated:

Because of these complications, and because standard strings aren't really suited to binary data, you should use pqxx::bytes or pqxx::bytes_view instead. This type will be removed.

Member Typedef Documentation

char_type

using pqxx::byte_char_traits::char_type = std::byte

Member Function Documentation

assign() [1/2]

static void pqxx::byte_char_traits::assign ( std::byte &  a, const std::byte &  b  )

inlinestaticnoexcept

assign() [2/2]

static PQXX_RETURNS_NONNULL std::byte* pqxx::byte_char_traits::assign ( std::byte *  dest, std::size_t  size, std::byte  value  )

inlinestatic

compare()

static int pqxx::byte_char_traits::compare ( const std::byte *  a, const std::byte *  b, std::size_t  size  )

inlinestatic

copy()

static PQXX_RETURNS_NONNULL std::byte* pqxx::byte_char_traits::copy ( std::byte *  dest, const std::byte *  src, std::size_t  size  )

inlinestatic

eof()

static int_type pqxx::byte_char_traits::eof ( )

static

Declared but not defined: makes no sense for binary data.

eq()

static bool pqxx::byte_char_traits::eq ( std::byte  a, std::byte  b  )

inlinestatic

eq_int_type()

static bool pqxx::byte_char_traits::eq_int_type ( int_type  a, int_type  b  )

inlinestatic

find()

static PQXX_RETURNS_NONNULL const std::byte* pqxx::byte_char_traits::find ( const std::byte *  data, std::size_t  size, const std::byte &  value  )

inlinestatic

length()

static size_t pqxx::byte_char_traits::length ( const std::byte *  data )

static

Deliberately undefined: "guess" the length of an array of bytes.

lt()

static bool pqxx::byte_char_traits::lt ( std::byte  a, std::byte  b  )

inlinestatic

move()

static PQXX_RETURNS_NONNULL std::byte* pqxx::byte_char_traits::move ( std::byte *  dest, const std::byte *  src, std::size_t  size  )

inlinestatic

not_eof()

static int_type pqxx::byte_char_traits::not_eof ( int_type  value )

static

Declared but not defined: makes no sense for binary data.

to_char_type()

static std::byte pqxx::byte_char_traits::to_char_type ( int_type  value )

inlinestatic

to_int_type()

static int_type pqxx::byte_char_traits::to_int_type ( std::byte  value )

inlinestatic

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The documentation for this struct was generated from the following file:

• include/pqxx/util.hxx