main.c

#include "fast_math.h"
#include <stdio.h>
#include <math.h>

float inv(float x) {
    if (x == 0.f) {
        return 0.f;
    }

    return 1.f / x;
}

int main() {
    fast_math_function_t inv_struct = fast_math_init(inv, -3.f, 3.f, 2137);\
        printf("Inv example:\n");
    printf("1 / 0.1 = %f\n", fast_math_get(0.1f, &inv_struct));
    printf("1 / 0.25 = %f\n", fast_math_get(0.25f, &inv_struct));
    printf("1 / 2 = %f\n", fast_math_get(2.f, &inv_struct));

    fast_math_function_t tanh_struct = fast_math_init(tanhf, -4.f, 4.f, 4096);
    printf("\nTanh example:\n");
    printf("tanh(0.1) = %f\n", fast_math_get(0.1f, &tanh_struct));
    printf("tanh(-0.25) = %f\n", fast_math_get(-0.25f, &tanh_struct));
    printf("tanh(5) = %f\n", fast_math_get(5.f, &tanh_struct));

    return 0;
}