std::wctype
Defined in header <cwctype> |
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std::wctype_t wctype( const char* str ); |
Constructs a value of type std::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"
.
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 std::iswalnum |
"alpha" |
identifies the category used by std::iswalpha |
"blank" |
identifies the category used by std::iswblank (C++11) |
"cntrl" |
identifies the category used by std::iswcntrl |
"digit" |
identifies the category used by std::iswdigit |
"graph" |
identifies the category used by std::iswgraph |
"lower" |
identifies the category used by std::iswlower |
"print" |
identifies the category used by std::iswprint |
"space" |
identifies the category used by std::iswspace |
"upper" |
identifies the category used by std::iswupper |
"xdigit" |
identifies the category used by std::iswxdigit |
Return value
std::wctype_t
object suitable for use with std::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.
See also
classifies a wide character according to the specified LC_CTYPE category (function) |
|
C documentation for wctype |
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