C in a Nutshell

Name

iswxdigit

Synopsis

Ascertains whether a given wide character is a hexadecimal digit

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

The iswxdigit() function is the wide-character version of the isxdigit() character classification function. It tests whether its character argument is a hexadecimal digit, and returns a nonzero value (that is, true) if the character is one of the digits between L'0' and L'9' inclusive, or a letter from L'A' through L'F' or from L'a' through L'f' inclusive. If not, the function returns 0 (false).

Example

See the example for iswalpha() in this chapter.

See Also

iswdigit(); the corresponding functions for byte characters, isdigit() and isxdigit(); iswalnum(), iswalpha(), iswblank(), iswcntrl(), iswgraph(), iswlower(), iswprint(), iswpunct(), iswspace(), iswupper(), setlocale(); the extensible wide-character classification function, iswctype()