C Tutorial/ctype.h/ispunct
ispunct
Item Value Header file ctype.h Declaration int ispunct(int ch); Return returns nonzero if ch is a punctuation character; otherwise zero is returned.
"punctuation" includes all printing characters that are neither alphanumeric nor a space.
#include <ctype.h>
#include <stdio.h>
int main(void)
{
char ch;
for(;;) {
ch = getchar();
if(ispunct(ch)){
printf("%c is punctuation\n", ch);
}
if(ch == "."){
break;
}
}
return 0;
}