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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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definiert in Header `<locale>`

`template< class charT > bool isspace( charT ch, const locale& loc );`

Prüft, ob die angegebene Zeichen als Leerzeichen durch die gegebenen Gebietsschemas ctype Facette eingestuft .

Original:

Checks if the given character classified as a whitespace character by the given locale's ctype facet.

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Parameter

ch	-	Charakter 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.

Rückgabewert

Versandkosten true wenn der Charakter als einem Leerzeichen eingestuft, false sonst .

Original:

Returns true if the character is classified as a whitespace character, false otherwise.

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Mögliche Implementierung

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);
}

Beispiel

Veranschaulicht die Verwendung von isspace () mit verschiedenen locales (OS-spezifische) .

Original:

Demonstrates the use of isspace() with different locales (OS-specific).

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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");
}

Output:

isspace(' ', locale("C")) returned false
isspace(' ', locale("en_US.UTF8")) returned true

Siehe auch


	prüft, ob ein Zeichen ein Leerzeichen 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. (Funktion) [edit]

	prüft, ob eine breite Zeichen ist ein Leerzeichen 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. (Funktion) [edit]