home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Sprite 1984 - 1993
/
Sprite 1984 - 1993.iso
/
src
/
machserver
/
1.098
/
libc
/
isascii.c
< prev
next >
Wrap
C/C++ Source or Header
|
1988-04-27
|
1KB
|
46 lines
/*
* isascii.c --
*
* Contains the C library procedure "isascii".
*
* Copyright 1988 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: isascii.c,v 1.1 88/04/27 18:03:26 ouster Exp $ SPRITE (Berkeley)";
#endif not lint
#include "ctype.h"
#undef isascii
/*
*----------------------------------------------------------------------
*
* isascii --
*
* Tell whether a character is an alphanumeric one or not.
*
* Results:
* Returns non-zero if c is a letter or digit, zero otherwise.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
isascii(c)
int c; /* Character value to test. Must be an
* ASCII value or EOF. */
{
return ((c & ~0x7f) == 0);
}