blob: 94c74ae9cf7def87a0383d3d3abacb497d1a292e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
/*
FUNCTION
<<iswdigit>>---decimal digit wide-character test
INDEX
iswdigit
ANSI_SYNOPSIS
#include <wctype.h>
int iswdigit(wint_t <[c]>);
TRAD_SYNOPSIS
#include <wctype.h>
int iswdigit(<[c]>)
wint_t <[c]>;
DESCRIPTION
<<iswdigit>> is a function which classifies wide-character values that
are decimal digits.
RETURNS
<<iswdigit>> returns non-zero if <[c]> is a decimal digit wide-character.
PORTABILITY
<<iswdigit>> is C99.
No supporting OS subroutines are required.
*/
#include <_ansi.h>
#include <wctype.h>
int
_DEFUN(iswdigit,(c), wint_t c)
{
return (c >= (wint_t)'0' && c <= (wint_t)'9');
}
|
