returns nonzero if ch is a white-space character, including space, horizontal tab, vertical tab, formfeed, carriage return, or newline character; otherwise zero is returned.
#include <ctype.h>
#include <stdio.h>
int main(void)
{ char ch;
for(;;) {
ch = getchar(); if(isspace(ch)){
printf("%c is white space\n", ch);
} if(ch == '.'){ break;
}
}
return 0;
}
f
is white space
d
is white space
s
is white space
sa
is white space
w
is white space
.