This documentation is copyright © 1998-2001 Sandro Sigala <sandro@sigala.it>.
All rights reserved.
Released under the GNU General Public License.
isgraph
Prototype
#include <ctype.h>
int isgraph(int c);
Description
Returns a true value if the c
character is a printing character except
the space character (' '
).
Example
#include <ctype.h>
/*
* Remove the non-graphic characters from the argument string.
*/
char *filter_graphs(char *s)
{
char *sp = s;
while (*sp != '\0')
if (!isgraph(*sp))
*sp = *(sp + 1);
else
++sp;
return s;
}
References
ISO C 9899:1990 7.3.1.5