libstdc++
Public Types | Static Public Member Functions | List of all members
std::char_traits< _CharT > Struct Template Reference
Strings

#include <char_traits.h>

Inheritance diagram for std::char_traits< _CharT >:
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Public Types

typedef _CharT char_type
 
using comparison_category
 
typedef _Char_types< _CharT >::int_type int_type
 
typedef _Char_types< _CharT >::off_type off_type
 
typedef _Char_types< _CharT >::pos_type pos_type
 
typedef _Char_types< _CharT >::state_type state_type
 

Static Public Member Functions

static constexpr void assign (char_type &__c1, const char_type &__c2)
 
static constexpr char_type * assign (char_type *__s, std::size_t __n, char_type __a)
 
static constexpr int compare (const char_type *__s1, const char_type *__s2, std::size_t __n)
 
static constexpr char_type * copy (char_type *__s1, const char_type *__s2, std::size_t __n)
 
static constexpr int_type eof ()
 
static constexpr bool eq (const char_type &__c1, const char_type &__c2)
 
static constexpr bool eq_int_type (const int_type &__c1, const int_type &__c2)
 
static constexpr const char_type * find (const char_type *__s, std::size_t __n, const char_type &__a)
 
static constexpr std::size_t length (const char_type *__s)
 
static constexpr bool lt (const char_type &__c1, const char_type &__c2)
 
static constexpr char_type * move (char_type *__s1, const char_type *__s2, std::size_t __n)
 
static constexpr int_type not_eof (const int_type &__c)
 
static constexpr char_type to_char_type (const int_type &__c)
 
static constexpr int_type to_int_type (const char_type &__c)
 

Detailed Description

template<typename _CharT>
struct std::char_traits< _CharT >

Basis for explicit traits specializations.

Note
For any given actual character type, this definition is probably wrong. Since this is just a thin wrapper around __gnu_cxx::char_traits, it is possible to achieve a more appropriate definition by specializing __gnu_cxx::char_traits.

See https://gcc.gnu.org/onlinedocs/libstdc++/manual/strings.html#strings.string.character_types for advice on how to make use of this class for unusual character types. Also, check out include/ext/pod_char_traits.h.

Definition at line 328 of file char_traits.h.

Member Typedef Documentation

◆ char_type

template<typename _CharT>
typedef _CharT __gnu_cxx::char_traits< _CharT >::char_type
inherited

Definition at line 115 of file char_traits.h.

◆ comparison_category

template<typename _CharT>
using __gnu_cxx::char_traits< _CharT >::comparison_category
inherited

Definition at line 123 of file char_traits.h.

◆ int_type

template<typename _CharT>
typedef _Char_types<_CharT>::int_type __gnu_cxx::char_traits< _CharT >::int_type
inherited

Definition at line 116 of file char_traits.h.

◆ off_type

template<typename _CharT>
typedef _Char_types<_CharT>::off_type __gnu_cxx::char_traits< _CharT >::off_type
inherited

Definition at line 119 of file char_traits.h.

◆ pos_type

template<typename _CharT>
typedef _Char_types<_CharT>::pos_type __gnu_cxx::char_traits< _CharT >::pos_type
inherited

Definition at line 118 of file char_traits.h.

◆ state_type

template<typename _CharT>
typedef _Char_types<_CharT>::state_type __gnu_cxx::char_traits< _CharT >::state_type
inherited

Definition at line 120 of file char_traits.h.

Member Function Documentation

◆ assign() [1/2]

template<typename _CharT>
static constexpr void __gnu_cxx::char_traits< _CharT >::assign ( char_type & __c1,
const char_type & __c2 )
inlinestaticconstexprinherited

Definition at line 127 of file char_traits.h.

◆ assign() [2/2]

template<typename _CharT>
char_traits< _CharT >::char_type * __gnu_cxx::char_traits< _CharT >::assign ( char_type * __s,
std::size_t __n,
char_type __a )
staticconstexprinherited

Definition at line 275 of file char_traits.h.

◆ compare()

template<typename _CharT>
int __gnu_cxx::char_traits< _CharT >::compare ( const char_type * __s1,
const char_type * __s2,
std::size_t __n )
staticconstexprinherited

Definition at line 188 of file char_traits.h.

◆ copy()

template<typename _CharT>
char_traits< _CharT >::char_type * __gnu_cxx::char_traits< _CharT >::copy ( char_type * __s1,
const char_type * __s2,
std::size_t __n )
staticconstexprinherited

Definition at line 255 of file char_traits.h.

◆ eof()

template<typename _CharT>
static constexpr int_type __gnu_cxx::char_traits< _CharT >::eof ( )
inlinestaticconstexprinherited

Definition at line 177 of file char_traits.h.

◆ eq()

template<typename _CharT>
static constexpr bool __gnu_cxx::char_traits< _CharT >::eq ( const char_type & __c1,
const char_type & __c2 )
inlinestaticconstexprinherited

Definition at line 138 of file char_traits.h.

◆ eq_int_type()

template<typename _CharT>
static constexpr bool __gnu_cxx::char_traits< _CharT >::eq_int_type ( const int_type & __c1,
const int_type & __c2 )
inlinestaticconstexprinherited

Definition at line 172 of file char_traits.h.

◆ find()

template<typename _CharT>
const char_traits< _CharT >::char_type * __gnu_cxx::char_traits< _CharT >::find ( const char_type * __s,
std::size_t __n,
const char_type & __a )
staticconstexprinherited

Definition at line 212 of file char_traits.h.

◆ length()

template<typename _CharT>
std::size_t __gnu_cxx::char_traits< _CharT >::length ( const char_type * __s)
staticconstexprinherited

Definition at line 201 of file char_traits.h.

◆ lt()

template<typename _CharT>
static constexpr bool __gnu_cxx::char_traits< _CharT >::lt ( const char_type & __c1,
const char_type & __c2 )
inlinestaticconstexprinherited

Definition at line 142 of file char_traits.h.

◆ move()

template<typename _CharT>
char_traits< _CharT >::char_type * __gnu_cxx::char_traits< _CharT >::move ( char_type * __s1,
const char_type * __s2,
std::size_t __n )
staticconstexprinherited

Definition at line 224 of file char_traits.h.

◆ not_eof()

template<typename _CharT>
static constexpr int_type __gnu_cxx::char_traits< _CharT >::not_eof ( const int_type & __c)
inlinestaticconstexprinherited

Definition at line 181 of file char_traits.h.

◆ to_char_type()

template<typename _CharT>
static constexpr char_type __gnu_cxx::char_traits< _CharT >::to_char_type ( const int_type & __c)
inlinestaticconstexprinherited

Definition at line 164 of file char_traits.h.

◆ to_int_type()

template<typename _CharT>
static constexpr int_type __gnu_cxx::char_traits< _CharT >::to_int_type ( const char_type & __c)
inlinestaticconstexprinherited

Definition at line 168 of file char_traits.h.

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