Create generic type functions in C

generic_fun.c

#include <stdio.h>


#define GENERIC_MAX( type ) \
    type type##_MAX(type a, type b) \
    {                               \
        return (a > b) ? a : b;     \
    }                               


int main()
{
    int ia = 5, ib = 3;
    float fa = 3.5, fb = 8.5;

    GENERIC_MAX(int);
    printf("%d \n", int_MAX(ia, ib));
    GENERIC_MAX(float);
    printf("%f \n", float_MAX(fa, fb));

    return 0;
}