{{keywords>wiki library source code example reference}}
===== isgraph =====
<code c>
    int isgraph(int chr);
</code>
checks for any printing character except space (' ')
===== C Sourcecode Example =====
<code c>
#include <stdio.h> /* including standard library */
//#include <windows.h> /* uncomment this for Windows */

#include <ctype.h>

int main ( void )
{
  int i;
  char string[11]="Test\n-!&%1";
  for (i=0; i <= 11;i++)
    {
     if ( isgraph(string[i]) != 0 )
      {
       printf("Character %i is a graph\n",i);
      }
    }
  return 0;
}
</code>
==== output ====
    output:
    user@host:~$ ./isgraph 
    Character 0 is a graph
    Character 1 is a graph
    Character 2 is a graph
    Character 3 is a graph
    Character 5 is a graph
    Character 6 is a graph
    Character 7 is a graph
    Character 8 is a graph
    Character 9 is a graph