output of sizeof operator

[ram619]

The output of this snippet is 4 and 1. 4 is ok but why this 1 ????

#include<stdio.h>

int main()
{
        printf("%d %d",sizeof(NULL),sizeof(""));
        return 0;
}

[mathematician]

Because "" represents the single null byte which always terminates a string in C.

[ram619]

ok got it, Thanks