isspace, iswspace

intisspace(intc**);**

intiswspace(wint_tc**);**

Each of these routines returns true if c is a particular representation of a space character.

Routine	Required Header	Compatibility
isspace	<ctype.h>	ANSI, Win 95, Win NT
iswspace	<ctype.h> or <wchar.h>	ANSI, Win 95, Win NT

For additional compatibility information, see Compatibility in the Introduction.

Libraries

LIBC.LIB	Single thread static library, retail version
LIBCMT.LIB	Multithread static library, retail version
MSVCRT.LIB	Import library for MSVCRT.DLL, retail version

Return Value

isspace returns a non-zero value if c is a white-space character (0x09 – 0x0D or 0x20). iswspace returns a non-zero value if c is a wide character that corresponds to a standard white-space character or is one of an implementation-defined set of wide characters for which iswalnum is false. Each of these routines returns 0 if c does not satisfy the test condition.

The result of the test condition for the isspace function depends on the LC_CTYPE category setting of the current locale; see setlocale for more information. For iswspace, the result of the test condition is independent of locale.

Parameter

c

Integer to test

Generic-Text Routine Mappings

TCHAR.H Routine	_UNICODE & _MBCS Not Defined	_MBCS Defined	_UNICODE Defined
_istspace	isspace	_ismbcspace	iswspace

Character Classification Routines |  Locale Routines |  is, isw Function Overview