std::isprint<div class="t-tr-text">(STD :: локаль)<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>
Материал из cppreference.com
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| Заголовочный файл <locale>
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| template< class charT > bool isprint( charT ch, const locale& loc ); |
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Проверяет, является ли данный символ классифицируется как печатные символы (в том числе пространстве) std::ctype аспект данной локали.
Original:
Checks if the given character classified as a printable character (including space) by the given locale's std::ctype facet.
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Содержание |
[править] Параметры
| ch | - | характер
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 | - | локали
Original: locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[править] Возвращаемое значение
Возврат true, если символ классифицируется как печатные, false иначе.
Original:
Returns true if the character is classified as printable, false otherwise.
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[править] Возможная реализация
template< class charT > bool isprint( charT ch, const std::locale& loc ) { return std::use_facet<std::ctype<charT>>(loc).is(std::ctype_base::print, ch); } |
[править] Пример
Демонстрирует использование isprint () с разных языков (OS-специфические) .
Original:
Demonstrates the use of isprint() with different locales (OS-specific).
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#include <iostream> #include <locale> int main() { const wchar_t c = L'\u2122'; // trademark sign std::locale loc1("C"); std::cout << "isprint('™', C locale) returned " << std::boolalpha << std::isprint(c, loc1) << '\n'; std::locale loc2("en_US.UTF-8"); std::cout << "isprint('™', Unicode locale) returned " << std::boolalpha << std::isprint(c, loc2) << '\n'; }
Вывод:
isprint('™', C locale) returned false
isprint('™', Unicode locale) returned true[править] См. также
| проверяет, является ли символ является печатным символом Original: checks if a character is a printing character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (функция) | |
| проверяет, является ли широкий символ является печатным символом Original: checks if a wide character is a printing character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (функция) | |