| Defined in header <wctype.h> | ||
|---|---|---|
int iswctype( wint_t wc, wctype_t desc ); | (since C95) |
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
#include <locale.h>
#include <wchar.h>
#include <wctype.h>
#include <stdio.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? %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
- C11 standard (ISO/IEC 9899:2011):
- 7.30.2.2.1 The iswctype function (p: 451-452)
- C99 standard (ISO/IEC 9899:1999):
- 7.25.2.2.1 The iswctype function (p: 397-398)
See also
| (C95) | looks up a character classification category in the current C locale (function) |
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