std::isspace<div class="t-tr-text">(Std :: locale)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::locale)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>
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<metanoindex/>
<tbody> </tbody>| Déclaré dans l'en-tête <locale>
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template< class charT > bool isspace( charT ch, const locale& loc ); |
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Vérifie si le caractère donné classé comme un caractère d'espacement par facette ctype l'endroit donné de .
Original:
Checks if the given character classified as a whitespace character by the given locale's ctype facet.
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Paramètres
| ch | - | caractère
Original: character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| loc | - | locale
Original: locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Retourne la valeur
Retours
true si le personnage est considéré comme un caractère d'espacement, false autrement .Original:
Returns
true if the character is classified as a whitespace character, false otherwise.The text has been machine-translated via Google Translate.
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Mise en œuvre possible
template< class charT >
bool isspace( charT ch, const std::locale& loc ) {
return std::use_facet<std::ctype<charT>>(loc).is(std::ctype_base::space, ch);
}
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Exemple
Illustre l'utilisation de isspace () avec différents paramètres régionaux (spécifiques à l'OS) .
Original:
Demonstrates the use of isspace() with different locales (OS-specific).
The text has been machine-translated via Google Translate.
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#include <iostream>
#include <locale>
void try_with(wchar_t c, const char* loc)
{
std::wcout << "isspace('" << c << "', locale(\"" << loc << "\")) returned "
<< std::boolalpha << std::isspace(c, std::locale(loc)) << '\n';
}
int main()
{
const wchar_t EM_SPACE = L'\u2003'; // Unicode character 'EM SPACE'
try_with(EM_SPACE, "C");
try_with(EM_SPACE, "en_US.UTF8");
}
Résultat :
isspace(' ', locale("C")) returned false
isspace(' ', locale("en_US.UTF8")) returned true
Voir aussi
vérifie si un caractère est un caractère d'espace Original: checks if a character is a space character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) | |
vérifie si un caractère large est un caractère d'espace Original: checks if a wide character is a space character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) | |
