std::iswblank
Материал из cppreference.com
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| Заголовочный файл <cwctype>
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| int iswblank( std::wint_t ch ); |
(начиная с C++11) | |
Проверяет, является ли данная широкий символ классифицируется как пустой символ (то есть, символ пробела, используемый для разделения слов в предложении) с учетом текущей локали C. Умолчанию, в локали C, только в пространстве (
0x20) и горизонтальные вкладки (0x09) являются пробелы.Original:
Checks if the given wide character is classified as blank character (that is, a whitespace character used to separate words in a sentence) by the current C locale. In the default C locale, only space (
0x20) and horizontal tab (0x09) are blank characters.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Содержание |
[править] Параметры
| ch | - | широкий характер
Original: wide character 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
Номера для нулевого значения (true), если широкий символ пробела,
0 (false) в противном случае.Original:
Non-zero value (true) if the wide character is a blank character,
0 (false) otherwise.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[править] Пример
#include <iostream> #include <cwctype> #include <clocale> int main() { wchar_t c = L'\u3000'; // Ideographic space (' ') std::cout << std::hex << std::showbase << std::boolalpha; std::cout << "in the default locale, iswblank(" << (std::wint_t)c << ") = " << (bool)std::iswblank(c) << '\n'; std::setlocale(LC_ALL, "en_US.utf8"); std::cout << "in Unicode locale, iswblank(" << (std::wint_t)c << ") = " << (bool)std::iswblank(c) << '\n'; }
Вывод:
in the default locale, iswblank(0x3000) = false in Unicode locale, iswblank(0x3000) = true
[править] См. также
| (C++11) |
checks if a character is classified as a blank character by a locale (шаблон функции) |
| (C++11) |
проверяет, является ли символ пробела Original: checks if a character is a blank character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (функция) |
| C документация для iswblank
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| ASCII values (hex) |
characters |
isblank |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 - 8 | 0x00-0x08
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control codes (NUL, etc.)
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≠0
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0
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0
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0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 9 | 0x09
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tab (\t)
|
≠0
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0
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≠0
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≠0
|
0
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0
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0
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0
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0
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0
|
0
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0
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| 10 - 13 | 0x0A-0x0D
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whitespaces (\n,\v,\f,\r)
|
≠0
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0
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≠0
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0
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0
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0
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0
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0
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0
|
0
|
0
|
0
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| 14 - 31 | 0x0E-0x1F
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control codes | ≠0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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0
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| 32 | 0x20
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space | 0
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≠0
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≠0
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≠0
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0
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0
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0
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0
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0
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0
|
0
|
0
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| 33 - 47 | 0x21-0x2F
|
!"#$%&'()*+,-./
|
0
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≠0
|
0
|
0
|
≠0
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≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 48 - 57 | 0x30-0x39
|
0123456789
|
0
|
≠0
|
0
|
0
|
≠0
|
0
|
≠0
|
0
|
0
|
0
|
≠0
|
≠0
|
| 58 - 64 | 0x3a-0x40
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:;<=>?@
|
0
|
≠0
|
0
|
0
|
≠0
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≠0
|
0
|
0
|
0
|
0
|
0
|
0
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| 65 - 70 | 0x41-0x46
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ABCDEF
|
0
|
≠0
|
0
|
0
|
≠0
|
0
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≠0
|
≠0
|
≠0
|
0
|
0
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≠0
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| 71 - 90 | 0x47-0x5A
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GHIJKLMNOPQRSTUVWXYZ
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0
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≠0
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0
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0
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≠0
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0
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≠0
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≠0
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≠0
|
0
|
0
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0
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| 91 - 96 | 0x5B-0x60
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[\]^_`
|
0
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≠0
|
0
|
0
|
≠0
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≠0
|
0
|
0
|
0
|
0
|
0
|
0
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| 97 -102 | 0x61-0x66
|
abcdef
|
0
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≠0
|
0
|
0
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≠0
|
0
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≠0
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≠0
|
0
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≠0
|
0
|
≠0
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| 103-122 | 0x67-0x7A
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ghijklmnopqrstuvwxyz
|
0
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≠0
|
0
|
0
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≠0
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0
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≠0
|
≠0
|
0
|
≠0
|
0
|
0
|
| 123-126 | 0x7B-0x7E
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{|}~
|
0
|
≠0
|
0
|
0
|
≠0
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≠0
|
0
|
0
|
0
|
0
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0
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0
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| 127 | 0x7F
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backspace character (DEL)
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≠0
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0
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0
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0
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0
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0
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0
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0
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0
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0
|
0
|
0
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