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std::collate

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< cpp‎ | locale

 
 
Localizaciones biblioteca
Locales y facetas
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Locales and facets
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locale
Carácter clasificación
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Character classification
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Conversiones
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Conversions
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Facet clases categoría base
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Facet category base classes
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Categorías faceta
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Facet categories
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Específico de la localidad facetas
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Locale-specific facets
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Facetas código de conversión
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Code conversion facets
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codecvt_utf8(C++11)
codecvt_utf16(C++11)
C locale
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C locale
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std::collate
Las funciones miembro
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Member functions
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collate::collate
collate::~collate
collate::compare
collate::do_compare
collate::transform
collate::do_transform
collate::hash
collate::do_hash
 
Defined in header <locale>
template< class CharT >
class collate;
Clase std::collate encapsula la configuración regional específica cotejo (comparación) y hash de cadenas. Esta faceta es utilizado por std::basic_regex y se puede aplicar, por medio de std::locale::operator(), directamente a todos los algoritmos estándar que esperan un predicado de comparación cadena .
Original:
Class std::collate encapsulates locale-specific collation (comparison) and hashing of strings. This facet is used by std::basic_regex and can be applied, by means of std::locale::operator(), directly to all standard algorithms that expect a string comparison predicate.
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cpp/locale/locale/facetstd-collate-inheritance.svg
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Inheritance diagram

Dos especializaciones son proporcionados por la biblioteca estándar y son aplicadas por todos los objetos creados en un entorno nacional C + + programa:
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Two specializations are provided by the standard library and are implemented by all locale objects created in a C++ program:
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Defined in header <locale>
std::collate<char>
implementos orden lexicográfico de cadenas de bytes
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implements lexicographical ordering of byte strings
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std::collate<wchar_t>
implementos orden lexicográfico de cadenas anchas
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implements lexicographical ordering of wide strings
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Contenido

[editar] Tipos de miembros

Miembro de tipo
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Member type
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Definition
char_type charT
string_type std::basic_string<charT>

[editar] Las funciones miembro

construye una nueva faceta cotejo
Original:
constructs a new collate facet
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(miembro público función)
destructs una faceta cotejo
Original:
destructs a collate facet
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(protegidos función miembro)
Invoca do_compare
Original:
invokes do_compare
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(miembro público función) [edit]
Invoca do_transform
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invokes do_transform
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(miembro público función) [edit]
Invoca do_hash
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invokes do_hash
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(miembro público función) [edit]

[editar] Objetos miembros

static std::locale::id id
Identificador de la configuración regional
Original:
id of the locale
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(objeto miembro del público)

[editar] Protegido funciones miembro

[virtual]
compara dos cadenas mediante reglas de esta faceta de la clasificación
Original:
compares two strings using this facet's collation rules
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(virtuales protegidos miembro de función) [edit]
[virtual]
transforma una cadena para que intercalación puede ser sustituido por comparación
Original:
transforms a string so that collation can be replaced by comparison
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(virtuales protegidos miembro de función) [edit]
[virtual]
genera un valor hash entero utilizando las reglas esta faceta de intercalación
Original:
generates an integer hash value using this facet's collation rules
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(virtuales protegidos miembro de función) [edit]

[editar] Ejemplo

#include <locale>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
int main()
{
    std::wcout.imbue(std::locale(""));
    std::vector<std::wstring> v = {L"ar", L"zebra", L"\u00f6grupp", L"Zebra", L"\u00e4ngel",
                                   L"\u00e5r", L"f\u00f6rnamn"};
 
    std::wcout << "Default locale collation order: ";
    std::sort(v.begin(), v.end());
    for(auto s : v) std::wcout << s << ' '; std::wcout << '\n';
 
    std::wcout << "English locale collation order: ";
    std::sort(v.begin(), v.end(), std::locale("en_US.UTF-8"));
    for(auto s : v) std::wcout << s << ' '; std::wcout << '\n';
 
    std::wcout << "Swedish locale collation order: ";
    std::sort(v.begin(), v.end(), std::locale("sv_SE.UTF-8"));
    for(auto s : v) std::wcout << s << ' '; std::wcout << '\n';
}

Output:

Default locale collation order: Zebra ar förnamn zebra ängel år ögrupp
English locale collation order: ängel ar år förnamn ögrupp zebra Zebra
Swedish locale collation order: ar förnamn zebra Zebra år ängel ögrupp

[editar] Ver también

lexicographically compares two strings using this locale's collate facet
(miembro público of std::locale función) [edit]
crea una faceta cotejar el nombre de la configuración regional
Original:
creates a collate facet for the named locale
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(clase de plantilla)