std::collate

<metanoindex/>

 

C++

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Concepts

Bibliothèque d'utilitaires

Bibliothèque pour les chaînes de caractères

Bibliothèque de conteneurs

Bibliothèque d'algorithmes

Bibliothèque d'itérateurs

Bibliothèque pour le calcul numérique

Bibliothèque pour les entrées/sorties

Bibliothèque pour la régionalisation

Bibliothèque pour les expressions régulières (C++11)

Bibliothèque pour les opérations atomiques (C++11)

Bibliothèque pour les processus légers (threads) (C++11)

 

Bibliothèque localisations

Locales et facettes Original: Locales and facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
locale
use_facet	has_facet
Classification des caractères Original: Character classification The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
isspace isblank (C++11) iscntrl isupper islower isalpha	isdigit ispunct isxdigit isalnum isprint isgraph
Conversions Original: Conversions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
toupper tolower	wstring_convert (C++11) wbuffer_convert (C++11)
Classes de facettes catégorie de base Original: Facet category base classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype_base codecvt_base messages_base	time_base money_base
Catégories de facettes Original: Facet categories The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype ctype<char> codecvt collate messages time_get time_put	num_get num_put numpunct money_get money_put moneypunct
Spécifique aux paramètres régionaux facettes Original: Locale-specific facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ctype_byname ctype_byname<char> codecvt_byname messages_byname collate_byname	time_get_byname time_put_byname numpunct_byname moneypunct_byname
Facettes de conversion de code Original: Code conversion facets The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
codecvt_utf8 (C++11) codecvt_utf16 (C++11)	codecvt_utf8_utf16 (C++11) codecvt_mode (C++11)
C locale Original: C locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
setlocale localeconv lconv	LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY LC_NUMERIC LC_TIME

 

std::collate

Les fonctions membres Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

collate::collate

collate::~collate

collate::compare collate::do_compare

collate::transform collate::do_transform

collate::hash collate::do_hash

 

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Déclaré dans l'en-tête <locale>
template< class CharT > class collate;

Classe std::collate encapsule spécifique à la localisation de classement (comparaison) et de hachage de chaînes. Cette facette est utilisé par std::basic_regex et peut être appliqué, par l'intermédiaire d'std::locale::operator(), directement à tous les algorithmes standards qui attendent un prédicat de comparaison de chaîne .

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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Inheritance diagram

Deux spécialisations sont fournis par la bibliothèque standard et sont mises en œuvre par tous les objets créés dans un environnement linguistique programme C + +:

Original:

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>	outils ordre lexicographique des chaînes d'octets Original: implements lexicographical ordering of byte strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
std::collate<wchar_t>	outils ordre lexicographique des chaînes larges Original: implements lexicographical ordering of wide strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Types de membres

Type du membre	Définition
char_type	charT
string_type	std::basic_string<charT>

Fonctions membres

(constructeur)	construit une nouvelle facette collate Original: constructs a new collate facet The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique)
(destructor)	Détruit une facette collate Original: destructs a collate facet The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre protégée)
compare	Invoque do_compare Original: invokes do_compare The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique)
transform	Invoque do_transform Original: invokes do_transform The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique)
hash	Invoque do_hash Original: invokes do_hash The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique)

Objets membres

static std::locale::id id	Id de la localisation Original: id of the locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (objet membre public)

Protégé fonctions membres

do_compare [ virtuel Original: virtual The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ]	compare deux chaînes en utilisant les règles de tri de cette facette Original: compares two strings using this facet's collation rules The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre virtuelle protégée)
do_transform [ virtuel Original: virtual The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ]	transforme une chaîne de classement de sorte que peut être remplacé par des comparaisons Original: transforms a string so that collation can be replaced by comparison The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre virtuelle protégée)
do_hash [ virtuel Original: virtual The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. ]	génère une valeur entière de hachage en utilisant les règles de tri de cette facette Original: generates an integer hash value using this facet's collation rules The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre virtuelle protégée)

Exemple

#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';
}

Résultat :

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

Voir aussi

operator()	compare lexicographiquement deux chaînes en utilisant les facettes de ce lieu de rassembler Original: lexicographically compares two strings using this locale's collate facet The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique de std::locale)
collate_byname	crée une facette collate pour l'environnement local nommé Original: creates a collate facet for the named locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe générique)