wctype - cppreference.com (original) (raw)
| | | | | ------------------------------------- | | ----------- | | wctype_t wctype( const char* str ); | | (since C95) |
Constructs a value of type wctype_t that describes a LC_CTYPE category of wide character classification. It may be one of the standard classification categories, or a locale-specific category, such as "jkanji".
[edit] Parameters
| str | - | C string holding the name of the desired category |
|---|
The following values of str are supported in all C locales:
| value of str | effect |
|---|---|
| "alnum" | identifies the category used by iswalnum |
| "alpha" | identifies the category used by iswalpha |
| "blank" | identifies the category used by iswblank (C99) |
| "cntrl" | identifies the category used by iswcntrl |
| "digit" | identifies the category used by iswdigit |
| "graph" | identifies the category used by iswgraph |
| "lower" | identifies the category used by iswlower |
| "print" | identifies the category used by iswprint |
| "space" | identifies the category used by iswspace |
| "upper" | identifies the category used by iswupper |
| "xdigit" | identifies the category used by iswxdigit |
[edit] Return value
wctype_t object suitable for use with iswctype to classify wide characters according to the named category of the current C locale or zero if str does not name a category supported by the current C locale.
[edit] References
C23 standard (ISO/IEC 9899:2024):
7.30.2.2.2 The wctype function (p: TBD)
C17 standard (ISO/IEC 9899:2018):
7.30.2.2.2 The wctype function (p: TBD)
C11 standard (ISO/IEC 9899:2011):
7.30.2.2.2 The wctype function (p: 452)
C99 standard (ISO/IEC 9899:1999):
7.25.2.2.2 The wctype function (p: 398)