std:: wctype
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Defined in header
<cwctype>
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std::
wctype_t
wctype
(
const
char
*
str
)
;
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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) |
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C documentation
for
wctype
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