sortix-mirror/libc/wctype/iswxdigit.c

32 lines
1.0 KiB
C

/*
* Copyright (c) 2011, 2012 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* wctype/iswxdigit.c
* Returns whether the wide character is a hexadecimal digit.
*/
#include <wctype.h>
int iswxdigit(wint_t c)
{
if ( iswdigit(c) )
return 1;
if ( L'a' <= c && c <= L'f' )
return 1;
if ( L'A' <= c && c <= L'F' )
return 1;
return 0;
}