Is relational comparison between int and float directly possible in C?

Question

I am using Visual Studio 6 with some old time code written in c. I found an issue where the code looks like this..

int x = 3;
float y = 3.0;

if(x == y){
            


        

Answer 1

For your specific example, "do some crazy stuff" will execute. 3.0 will not be 3.0000001 at run-time.

The other answers are more for general cases, but even a hardcoded epsilon is not the greatest idea in the world. A dynamic epsilon based on the actual numbers involved is much better since the more positive and more negative the numbers are, the less likely the hardcoded epsilon will be relevant.