std::char_traits< _CharT >(3)                         Library Functions Manual

NAME
       std::char_traits< _CharT > - Basis for explicit traits specializations.


SYNOPSIS
       #include <char_traits.h>

       Inherits __gnu_cxx::char_traits< _CharT >.

       Inherited by __gnu_cxx::encoding_char_traits< _CharT >.

   Public Types
       typedef _CharT char_type
       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 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 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.


Author
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                                   libstdc++     std::char_traits< _CharT >(3)