Use C iswdigit function to check if a wide character is a digit

Syntax

C iswdigit function has the following syntax.

Header

C iswdigit function is from header file wctype.h.

Description

C iswdigit function returns nonzero if ch is a digit or zero is returned.

Example

Use C iswdigit function to tell if a wide character is a digit.

#include <stdio.h>
#include <wctype.h>
//from www. j  a  va2 s.  c om
int main(void)
{
   int wc;

   for (wc=0; wc <= 0xFF; wc++) {
      printf("%3d", wc);
      printf(" %#4x ", wc);
      printf("%2s", iswdigit(wc)  ? "D"  : " ");

      putchar('\n');
   }
}

The code above generates the following result.