std::iswcntrl
Материал из cppreference.com
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| Заголовочный файл <cwctype>
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| int iswcntrl( std::wint_t ch ); |
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Проверяет, является ли данная широкий характер контроля характер, т. е. коды
0x00-0x1F и 0x7F и любые управляющие символы, характерные для текущей локали.Original:
Checks if the given wide character is a control character, i.e. codes
0x00-0x1F and 0x7F and any control characters specific to the current locale.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 характер контроля характеру,
0 (false) в противном случае.Original:
Non-zero value (true) if the wide character is a control 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'\u2028'; // the Unicode character "line separator" std::cout << std::hex << std::showbase << std::boolalpha; std::cout << "in the default locale, iswcntrl(" << (std::wint_t)c << ") = " << (bool)std::iswcntrl(c) << '\n'; std::setlocale(LC_ALL, "en_US.utf8"); std::cout << "in Unicode locale, iswcntrl(" << (std::wint_t)c << ") = " << (bool)std::iswcntrl(c) << '\n'; }
Вывод:
in the default locale, iswcntrl(0x2028) = false in Unicode locale, iswcntrl(0x2028) = true
[править] См. также
| проверяет, является ли символ классифицируется как символ управления по локали Original: checks if a character is classified as a control character by a locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (шаблон функции) | |
| проверяет, является ли символ управляющим символом Original: checks if a character is a control 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 iswcntrl
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| ASCII values (hex) |
characters |
iscntrl |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
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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
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0
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| 9 | 0x09
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tab (\t)
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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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0
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| 10 - 13 | 0x0A-0x0D
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whitespaces (\n,\v,\f,\r)
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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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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
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0
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0
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| 33 - 47 | 0x21-0x2F
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!"#$%&'()*+,-./
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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
|
0
|
0
|
0
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| 48 - 57 | 0x30-0x39
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0123456789
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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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≠0
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≠0
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| 58 - 64 | 0x3a-0x40
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:;<=>?@
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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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0
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| 65 - 70 | 0x41-0x46
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ABCDEF
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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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≠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
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0
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0
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0
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| 91 - 96 | 0x5B-0x60
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[\]^_`
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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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0
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| 97 -102 | 0x61-0x66
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abcdef
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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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≠0
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| 103-122 | 0x67-0x7A
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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
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≠0
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0
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0
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| 123-126 | 0x7B-0x7E
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{|}~
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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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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
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0
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0
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