#include <stdio.h>
#include <string.h>
#include <stdlib.h>

/* Avoid Heptagon's math.h. I don't think there's a single place where to find
   math.h on Apple-platforms. */
#ifndef __APPLE__
#include </usr/include/math.h>
#endif

#include "mathext.h"

void Mathext__float_step(int x, Mathext__float_out *o) {
  o->o = (float)x;
}

void Mathext__int_step(float x, Mathext__int_out *o) {
  o->o = (int)x;
}

void Mathext__floor_step(float x, Mathext__floor_out *o) {
  o->o = floorf(x);
}

void Mathext__sin_step(float x, Mathext__sin_out *o) {
  o->o = sinf(x);
}

void Mathext__cos_step(float x, Mathext__cos_out *o) {
  o->o = cosf(x);
}

void Mathext__atan2_step(float y, float x, Mathext__atan2_out *o) {
  o->o = atan2f(y, x);
}

void Mathext__pow_step(float x, float y, Mathext__pow_out *o) {
  o->o = powf(x, y);
}

void Mathext__hypot_step(float x, float y, Mathext__hypot_out *o) {
  o->o = hypotf(x, y);
}

void Mathext__sqrt_step(float x2, Mathext__sqrt_out *o) {
  o->o = sqrtf(x2);
}

void Mathext__modulo_step(int x, int y, Mathext__modulo_out *o) {
  o->o = x % y;
}

void Mathext__piano_freq_of_key_step(int n, Mathext__piano_freq_of_key_out *o) {
  o->f = (float)(pow(2, (float)(n - 49) / (float)12) * 440.);
}