STD::__CXX11_COLLATE(3cxx)

💖 NAME 💖

std::__cxx11::collate< _CharT > — the facet for localized string comparison. That's from the 3cxx manual, bestie. ✨

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🎀 SYNOPSIS 🎀

#include <locale>

Inherits std::locale::facet.

🌸 Public Types 🌸

• typedef _CharT char_type — public typedefs, she's literally just the char type ok.
• typedef basic_string< _CharT > string_type — public typedefs, the string flavor of the same idea.

🦋 Public Member Functions 🦋

• collate(__c_locale __cloc, size_t __refs=0) — internal constructor, not for general use. The library uses this one to set up new locales.
• collate(size_t __refs=0) — constructor performs initialization, the standard one.
• int _M_compare(const _CharT *, const _CharT *) const throw()
• size_t _M_transform(_CharT *, const _CharT *, size_t) const throw()
• int compare(const _CharT *__lo1, const _CharT *__hi1, const _CharT *__lo2, const _CharT *__hi2) const — compare two strings.
• long hash(const _CharT *__lo, const _CharT *__hi) const — return hash of a string.
• string_type transform(const _CharT *__lo, const _CharT *__hi) const — transform string to comparable form.

✨ Static Public Attributes ✨

• static locale::id id — numpunct facet id. (yes, it says numpunct, that's what the source says, no cap 🙈)

💜 Protected Member Functions 💜

• virtual ~collate() — destructor.
• virtual int do_compare(const _CharT *__lo1, const _CharT *__hi1, const _CharT *__lo2, const _CharT *__hi2) const — compare two strings.
• virtual long do_hash(const _CharT *__lo, const _CharT *__hi) const — return hash of a string.
• virtual string_type do_transform(const _CharT *__lo, const _CharT *__hi) const — transform string to comparable form.

🧚 Static Protected Member Functions 🧚

• static __c_locale _S_clone_c_locale(__c_locale &__cloc) throw()
• static void _S_create_c_locale(__c_locale &__cloc, const char *__s, __c_locale __old=0)
• static void _S_destroy_c_locale(__c_locale &__cloc)
• static __c_locale _S_get_c_locale()
• static const char * _S_get_c_name() throw()
• static __c_locale _S_lc_ctype_c_locale(__c_locale __cloc, const char *__s)

🌈 Protected Attributes 🌈

• __c_locale _M_c_locale_collate

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👑 Detailed Description 👑

template<typename _CharT>
class std::__cxx11::collate< _CharT >

Facet for localized string comparison. 💅

This facet encapsulates the code to compare strings in a localized manner.

The collate template uses protected virtual functions to provide the actual results. The public accessors forward the call to the virtual functions. These virtual functions are hooks for developers to implement the behavior they require from the collate facet.

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⭐ Member Typedef Documentation ⭐

template<typename _CharT> typedef _CharT std::__cxx11::collate< _CharT >::char_type

Public typedefs.

template<typename _CharT> typedef basic_string<_CharT> std::__cxx11::collate< _CharT >::string_type

Public typedefs.

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🍓 Constructor & Destructor Documentation 🍓

template<typename _CharT> std::__cxx11::collate< _CharT >::collate (size_t __refs = 0) [inline], [explicit]

Constructor performs initialization. This is the constructor provided by the standard.

Parameters

• __refs — passed to the base facet class.

References std::locale::facet::facet().

Referenced by do_compare(), do_hash(), and do_transform().

template<typename _CharT> std::__cxx11::collate< _CharT >::collate (__c_locale __cloc, size_t __refs = 0) [inline], [explicit]

Internal constructor. Not for general use. This is a constructor for use by the library itself to set up new locales.

Parameters

• __cloc — the C locale.
• __refs — passed to the base facet class.

References std::locale::facet::facet().

template<typename _CharT> virtual std::__cxx11::collate< _CharT >::~collate () [inline], [protected], [virtual]

Destructor. bye bestie 🫶

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🔥 Member Function Documentation 🔥

template<typename _CharT> int std::__cxx11::collate< _CharT >::compare (const _CharT * __lo1, const _CharT * __hi1, const _CharT * __lo2, const _CharT * __hi2) const [inline]

Compare two strings. This function compares two strings and returns the result by calling collate::do_compare().

Parameters

• __lo1 — start of string 1.
• __hi1 — end of string 1.
• __lo2 — start of string 2.
• __hi2 — end of string 2.

Returns

1 if string1 > string2, -1 if string1 < string2, else 0.

References do_compare().

template<typename _CharT> int std::collate< _CharT >::do_compare (const _CharT * __lo1, const _CharT * __hi1, const _CharT * __lo2, const _CharT * __hi2) const [protected], [virtual]

Compare two strings. This function is a hook for derived classes to change the value returned.

See also

compare().

Parameters

• __lo1 — start of string 1.
• __hi1 — end of string 1.
• __lo2 — start of string 2.
• __hi2 — end of string 2.

Returns

1 if string1 > string2, -1 if string1 < string2, else 0.

References collate(), std::basic_string< _CharT, _Traits, _Alloc >::c_str(), std::basic_string< _CharT, _Traits, _Alloc >::data(), and std::basic_string< _CharT, _Traits, _Alloc >::length().

Referenced by compare().

template<typename _CharT> long std::collate< _CharT >::do_hash (const _CharT * __lo, const _CharT * __hi) const [protected], [virtual]

Return hash of a string. This function computes and returns a hash on the input string. This function is a hook for derived classes to change the value returned.

Parameters

• __lo — start of string.
• __hi — end of string.

Returns

Hash value.

References collate().

Referenced by hash().

template<typename _CharT> collate< _CharT >::string_type std::collate< _CharT >::do_transform (const _CharT * __lo, const _CharT * __hi) const [protected], [virtual]

Transform string to comparable form. This function is a hook for derived classes to change the value returned.

Parameters

• __lo — start.
• __hi — end.

Returns

transformed string.

References collate(), std::basic_string< _CharT, _Traits, _Alloc >::append(), std::basic_string< _CharT, _Traits, _Alloc >::c_str(), std::basic_string< _CharT, _Traits, _Alloc >::clear(), std::basic_string< _CharT, _Traits, _Alloc >::data(), std::basic_string< _CharT, _Traits, _Alloc >::length(), and std::basic_string< _CharT, _Traits, _Alloc >::push_back().

Referenced by transform().

template<typename _CharT> long std::__cxx11::collate< _CharT >::hash (const _CharT * __lo, const _CharT * __hi) const [inline]

Return hash of a string. This function computes and returns a hash on the input string. It does so by returning collate::do_hash().

Parameters

• __lo — start of string.
• __hi — end of string.

Returns

Hash value.

References do_hash().

template<typename _CharT> string_type std::__cxx11::collate< _CharT >::transform (const _CharT * __lo, const _CharT * __hi) const [inline]

Transform string to comparable form. This function is a wrapper for strxfrm functionality. It takes the input string and returns a modified string that can be directly compared to other transformed strings. In the C locale, this function just returns a copy of the input string. In some other locales, it may replace two chars with one, change a char for another, etc. It does so by returning collate::do_transform().

Parameters

• __lo — start of string.
• __hi — end of string.

Returns

Transformed string_type.

References do_transform().

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💀 Member Data Documentation 💀

template<typename _CharT> locale::id std::__cxx11::collate< _CharT >::id [static]

Numpunct facet id.

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🫶 Author 🫶

Generated automatically by Doxygen for libstdc++ from the source code.

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okay that's the whole vibe bestie, every flag, every signature, every reference preserved with zero edits because facts are sacred and the drip is extra 💖✨ This was libstdcstd::__cxx11::collate< _CharT >(3cxx) — libstdc++, page 3cxx, mwah, slay, periodt 🎀🦋👑