Format
#include <ctype.h>
int isblank(int c);Language Level: Extended
Threadsafe: Yes.
Description
The isblank() function tests if a character is either the EBCDIC space or EBCDIC tab character.
Return Value
The isblank() function returns nonzero if c is either the EBCDIC space character or the EBCDIC tab character, otherwise it returns 0.
Example that uses isblank()
This example tests several characters using isblank().
#include <stdio.h>
#include <ctype.h>
int main(void)
{
char *buf = "a b\tc";
int i;
for (i = 0; i < 5; i++) {
if (isblank(buf[i]))
printf("Character %d is not a blank.\n", i);
else
printf("Character %d is a blank\n", i);
}
return 0;
}
/*************************************
The output should be
Character 0 is not a blank.
Character 1 is a blank.
Character 2 is not a blank.
Character 3 is a blank.
Character 4 is not a blank.
*************************************/Related Information