Ascertains whether a given wide character produces space

#include <wctype.h>
int iswspace ( wint_t wc  );

The iswspace( ) function is the wide-character version of the isspace( ) character classification function. It tests whether its wide character argument produces whitespace rather than a glyph when printedthat is, a space, tabulator, newline, or the like. If the argument is a whitespace wide character, iswspace( ) returns a nonzero value (that is, TRue); if not, the function returns 0 (false).

Which wide characters fall into the whitespace class depends on the current locale setting for the category LC_CTYPE, which you can query or change using the setlocale( ) function. In all locales, however, if iswspace( ) is true for a given wide character, then iswalnum( ), iswgraph( ), and iswpunct( ) are false.

Example

See the example for iswalpha( ) in this chapter.

See Also

iswblank( ), iswprint( ); the corresponding function for byte characters, isspace( ); iswalnum( ), iswalpha( ), iswcntrl( ), iswdigit( ), iswgraph( ), iswlower( ), iswprint( ), iswpunct( ), iswupper( ), iswxdigit( ), setlocale( ); the extensible wide-character classification function, iswctype( )