_isctype, iswctype, _isctype_l, _iswctype_l
Tests c for the property specified by the desc argument. For each valid value of desc, there is an equivalent wide-character classification routine.
int _isctype( int c, _ctype_t desc ); int _isctype_l( int c, _ctype_t desc, _locale_t locale ); int iswctype( wint_t c, wctype_t desc ); int _iswctype_l( wint_t c, wctype_t desc, _locale_t locale );
Parameters
- c
-
Integer to test.
- desc
-
Property to test for. This is normally retrieved using ctype or wctype.
- locale
-
The locale to use for any locale-dependent tests.
_isctype and iswctype return a nonzero value if c has the property specified by desc in the current locale or 0 if it does not. The versions of these functions with the _l suffix are identical except that they use the locale passed in instead of the current locale for their locale-dependent behavior.
| Tchar.h routine | _UNICODE and _MBCS not defined | _MBCS defined | _UNICODE defined |
|---|---|---|---|
| n/a | _isctype | n/a | _iswctype |
| n/a | _isctype_l | n/a | _iswctype_l |
| Routine | Required header | Compatibility |
|---|---|---|
| _isctype | <ctype.h> | Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
| iswctype | <ctype.h> or <wchar.h> | ANSI, Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
| _isctype_l | <ctype.h> | Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
| _iswctype_l | <ctype.h> or <wchar.h> | Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
For more compatibility information, see Compatibility in the Introduction.
Libraries
All versions of the C run-time libraries.
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
