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std::iswctype

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< cpp‎ | string‎ | wide

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C++
 
Biblioteca cordas
Strings terminadas
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Null-terminated strings
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Cadeias de bytes
Multibyte cordas
Cordas de largura
Classes
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Classes
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Strings terminadas largura
Funções
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Functions
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Manipulação personagem
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Character manipulation
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Conversões para formatos numéricos
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Conversions to numeric formats
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Manipulação de cadeia
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String manipulation
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Manipulação matriz
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Array manipulation
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Definido no cabeçalho <cwctype>
int iswctype( std::wint_t ch, std::wctype_t desc );
Classifica o caráter amplo wc usando categoria LC_CTYPE o atual C locale identificado por desc.
Original:
Classifies the wide character wc using the current C locale's LC_CTYPE category identified by desc.
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Índice

[editar] Parâmetros

ch -
o caráter amplo de classificar
Original:
the wide character to classify
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desc -
a categoria LC_CTYPE, obtido a partir de uma chamada para std::wctype
Original:
the LC_CTYPE category, obtained from a call to std::wctype
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[editar] Valor de retorno

Não-zero se o ch personagem tem a propriedade identificada por desc em faceta LC_CTYPE da localidade C atual.
Original:
Non-zero if the character ch has the property identified by desc in LC_CTYPE facet of the current C locale.
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[editar] Exemplo

#include <clocale>
#include <cwctype>
#include <iostream>
bool classify(wchar_t ch, const std::string& cat)
{
    return std::iswctype(ch, std::wctype(cat.c_str()));
}
int main()
{
    std::setlocale(LC_ALL, "ja_JP.UTF-8");
    std::cout << "The character \u6c34 is...\n";
    for(std::string s : {"digit", "alpha", "space", "cntrl", "jkanji"})
        std::cout << s << "? " << std::boolalpha << classify(L'\u6c34', s) << '\n';
}

Saída: 

The character 水 is...
digit? false
alpha? true
space? false
cntrl? false
jkanji? true

[editar] Veja também
olha uma categoria de classificação personagem na localidade C atual
Original:
looks up a character classification category in the current C locale
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(função) [edit]
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