How to use floating-point number in conditional if-else statement ???

Question

#include<stdio.h>
int main() {
float a=2.5;
if(a==2.5)
printf("Coding is fun");
else
printf("Solo Learn");
return 0;
}
// Output :- Solo Learn

Answer 1

Float values can't be compared like that, because the computer stores them not exactly.
For example:
2.5f could be stored like 2.5000001f.

Answer 2

I think its not the best idea to compare float points with default operators like == or >,<,!=. Write a function for the comparison instead where you send two floats you want to compare and if their diferrence is smaller than a very small number (like 10^-9) then u can say they are equal. This is because a=2.5 and 2.5 may nit have same precision when stored as floating point or double