Casting not working well in C -

programming c using xcode, here's f

#include <stdio.h>  int multiply (int x, int y) { return x * y; } int main() {  float result = (float) multiply (0.2, 0.5); printf("the result %f", result);  } 

i don't right value, 0.0000 !! did casting don't know whats wrong.

your program multiplies 0 0.

multiply takes 2 int parameters, 0.2 , 0.5 implicitly converted int before making call. truncates both 0.

your typecast doesn't anything in program, since return value of multiply (which int) implicitly converted during assignment result anyway.

you need change definition of multiply (or add floating-point version , call that) if want program work correctly.