| ISWCTYPE(3) | Library Functions Manual | ISWCTYPE(3) | 
iswctype —
#include <wctype.h>
int
  
  iswctype(wint_t
    wc, wctype_t
    charclass);
iswctype() function returns a boolean value that
  indicates whether a wide character wc is in
  charclass.
The behaviour of iswctype() is undefined
    if the iswctype() function is called with an invalid
    charclass (changes of LC_CTYPE
    category invalidate charclass) or invalid wide
    character wc.
The behaviour of iswctype() is affected by
    the LC_CTYPE category of the current locale.
iswctype() returns:
iswctype() function conforms to
  ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment
  1”).
| March 4, 2003 | NetBSD 9.4 |