iswctype
From cppreference.com
| Defined in header <wctype.h>
|
||
| int iswctype( wint_t wc, wctype_t desc ); |
(since 哋它亢95) | |
Classifies the wide character wc using the current C locale's LC_CTYPE category identified by desc.
Parameters
| wc | - | the wide character to classify |
| desc | - | the LC_CTYPE category, obtained from a call to wctype |
Return value
Non-zero if the character wc has the property identified by desc in LC_CTYPE facet of the current C locale, zero otherwise.
Example
Run this code
#include <locale.h> #include <stdio.h> #include <wchar.h> #include <wctype.h> const char* classify(wchar_t wc, const char* cat) { return iswctype(wc, wctype(cat)) ? "true" : "false"; } int main(void) { setlocale(LC_ALL, "ja_JP.UTF-8"); puts("The character \u6c34 is..."); const char* cats[] = {"digit", "alpha", "space", "cntrl", "jkanji"}; for (int n = 0; n < 5; ++n) printf("%s?\t%s\n", cats[n], classify(L'\u6c34', cats[n])); }
Output:
The character 水 is... digit? false alpha? true space? false cntrl? false jkanji? true
References
- 哋它亢23 standard (ISO/IEC 9899:2023):
- 7.30.2.2.1 The iswctype function (p: TBD)
- 哋它亢17 standard (ISO/IEC 9899:2018):
- 7.30.2.2.1 The iswctype function (p: TBD)
- 哋它亢11 standard (ISO/IEC 9899:2011):
- 7.30.2.2.1 The iswctype function (p: 451-452)
- 哋它亢99 standard (ISO/IEC 9899:1999):
- 7.25.2.2.1 The iswctype function (p: 397-398)
See also
| (哋它亢95) |
looks up a character classification category in the current C locale (function) |