//Declaration: int isprint(int ch);
//Return: returns nonzero if ch is a printable character, including a space;
otherwise zero is returned.
#include <ctype.h>
#include <stdio.h>
int main(void)
{
char ch;
for(;;) {
ch = getchar();
if(isprint(ch)){
printf("%c is printable\n",ch);
}
if(ch == '.'){
break;
}
}
return 0;
}
/*
a
a is printable
s
s is printable
d
d is printable
f
f is printable
.
. is printable
*/
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