STD::CHAR_TRAITS(3)

💖 std::char_traits< _CharT > — Library Functions Manual, section 3 💖

okay bestie, pull up a chair, we're reading a C++ manpage together and honestly? it's giving foundational. this is std::char_traits< _CharT >(3), straight out of the Library Functions Manual, and it's literally the blueprint every string type in libstdc++ builds its whole personality on. 🌸

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✨ NAME ✨

std::char_traits< _CharT > — the Basis for explicit traits specializations. that's it, that's the whole job description. 🎀

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✨ SYNOPSIS ✨

#include <string>

• Inherits __gnu_cxx::char_traits< _CharT >. yes she's got a parent, she's not doing this alone. 🫶
• Inherited by __gnu_cxx::encoding_char_traits< _CharT >. and she's a mother too, iconic lineage honestly. 👑

🌈 Public Types 🌈

• typedef _CharT char_type — the character type. the main character, literally. ✨
• using comparison_category — the comparison category, hanging out, being a using-declaration. 💅
• typedef _Char_types< _CharT >::int_type int_type — int type, inherited from _Char_types< _CharT >.
• typedef _Char_types< _CharT >::off_type off_type — off type, also from _Char_types< _CharT >.
• typedef _Char_types< _CharT >::pos_type pos_type — pos type, again from _Char_types< _CharT >.
• typedef _Char_types< _CharT >::state_type state_type — state type, once more from _Char_types< _CharT >.

🦋 Static Public Member Functions 🦋

these are all static constexpr, so they're free, they're fast, and they're not taking your this pointer. no cap. 🔥

• static constexpr void assign (char_type &__c1, const char_type &__c2) — assign one char to another. set it and forget it.
• static constexpr char_type * assign (char_type *__s, std::size_t __n, char_type __a) — fill __n chars of __s with __a. mass assignment era.
• static constexpr int compare (const char_type *__s1, const char_type *__s2, std::size_t __n) — compare __n chars of two strings. the vibe check.
• static constexpr char_type * copy (char_type *__s1, const char_type *__s2, std::size_t __n) — copy __n chars. yes the name is copy, not std::copy, don't @ me.
• static constexpr int_type eof () — returns the end-of-file value. the finale, the end credits. 😭
• static constexpr bool eq (const char_type &__c1, const char_type &__c2) — are these two chars equal? yes or yes. 💖
• static constexpr bool eq_int_type (const int_type &__c1, const int_type &__c2) — same question but for int_type. equality but make it int.
• static constexpr const char_type * find (const char_type *__s, std::size_t __n, const char_type &__a) — hunt for __a inside __n chars of __s. detective mode. 🔍
• static constexpr std::size_t length (const char_type *__s) — how long is __s? she'll tell you. 📏
• static constexpr bool lt (const char_type &__c1, const char_type &__c2) — less-than. is __c1 smaller than __c2? 🤏
• static constexpr char_type * move (char_type *__s1, const char_type *__s2, std::size_t __n) — move __n chars, overlaps safe. she can handle messy situations. 💅
• static constexpr int_type not_eof (const int_type &__c) — returns something that is not the eof value. the anti-finale.
• static constexpr char_type to_char_type (const int_type &__c) — int type goes in, char type comes out. transformation arc. 🦋
• static constexpr int_type to_int_type (const char_type &__c) — char type goes in, int type comes out. the reverse glow-up.

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✨ 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.

so yeah, out of the box she's a thin wrapper and she knows she might be wrong for your weird char type, and honestly? self-aware queen. if you need her to actually behave right, you go specialize __gnu_cxx::char_traits yourself. 🧚

See 🌟 https://gcc.gnu.org/onlinedocs/libstdc++/manual/strings.html#strings.string.character_types — that's the link with advice on how to make use of this class for unusual character types. also, check out include/ext/pod_string. go on, click it, i'll wait. 💜

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✨ Author ✨

Generated automatically by Doxygen for libstdc++ from the source code. she wasn't written by a human hand, she was generated, and she still ate. 🤖💅

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and that's the whole page bestie — brought to you by libstdc++, from the std::char_...< _CharT >(3) page, in the Library Functions Manual. no cap, go specialize some traits, ily, bye! 🎀✨💖🦋🌸