Question

I was wondering how the C compiler would handle the comparison operator ‘==’

I wish to create a function (in C) that compares two things without using the ==. I think it can be done some how by using bitwise operators ( &, |, ^, >>) however I can’t seem to think of how to do it.

Anyone have ideas?

Thanks!

Answer 1

Here’s a simple way to check if two ints are equal without using ==:

int x = 3;
int y = 3;

if(x < y || y < x)
    printf("Not equal");
else
    printf("Equal");