Check out example codes for "how to denote an empty string in c". It will help you in understanding the concepts better.

Code Example 1

#include <stdio.h>
#include <string.h>

int main()
{
    char empty[5] = { '\0' };
    char null[5];

    if( strcmp(empty,null)==0 )
        puts("Strings are the same");
    else
        puts("Strings are not the same");

    return(0);
}

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