isgraph.c

VXWORKS源代码

/* isgraph.c - character classification and conversion macros */

/* Copyright 1992-1993 Wind River Systems, Inc. */

/*
modification history
--------------------
01e,03mar93,jdi  more documentation cleanup for 5.1.
01d,07feb93,jdi  documentation cleanup for 5.1.
01c,20sep92,smb  documentation additions
01b,04jul92,smb  added vxWorks.h and extra documentation
01a,24mar92,smb  
*/

/*
DESCRIPTION

INCLUDE FILE: ctype.h

SEE ALSO: American National Standard X3.159-1989

NOMANUAL
*/

#include "vxWorks.h"
#include "ctype.h"


#undef isgraph
/*******************************************************************************
*
* isgraph - test whether a character is a printing, non-white-space character (ANSI)
*
* This routine returns true if <c> is a printing character, and not a
* character for which isspace() returns true.
*
* INCLUDE FILES: ctype.h
*
* RETURNS:
* Non-zero if and only if <c> is a printable, non-white-space character.
*
* SEE ALSO: isspace()
*/

int isgraph 
    (
    int c       /* character to test */
    )
    {
    return __isgraph(c); 
    }