The isgraph() function in c use to checks that given character is a graphic character or not.
What is graphic character:- Characters which have graphical representation are call as graphic characters.
isgraph in c return the non zero integer if passed argument is an
graphic character otherwise returns 0.
Syntax for isgraph in c
int isgraph(int argument);
Example program to Check graphic character with help of isgraph in c
#include <stdio.h>
#include <ctype.h>
int main()
{
char c;
int result;
c = ' ';
result = isgraph(c);
printf("When %c is passed to isgraph() = %d\n", c, result);
c = '\n';
result = isgraph(c);
printf("When %c is passed to isgraph() = %d\n", c, result);
c = '9';
result = isgraph(c);
printf("When %c is passed to isgraph() = %d\n", c, result);
OUTPUT : -
When is passed to isgraph() = 0 When is passed to isgraph() = 0 When 9 is passed to isgraph() = 1