text: /*
   * Copyright 2014 The Emscripten Authors.  All rights reserved.
   * Emscripten is available under two separate licenses, the MIT license and the
   * University of Illinois/NCSA Open Source License.  Both these licenses can be
   * found in the LICENSE file.
   */
  
  #include <math.h>
  #include <assert.h>
  #include <float.h>
  #include <stdio.h>
  
  union fi
  {
  	float f;
  	unsigned int i;
  };
  
  unsigned int Float2Int(float f)
  {
  	union fi a;
  	a.f = f;
  	return a.i;
  }
  
  float Fminf(float x, float y)
  {
  	if (x < y || !(y == y))
  		return x;
  	else if (y < x || !(x == x))
  		return y;
  	else if (x != 0.f)
  		return x;
  	else
  		return Float2Int(x) == 0 ? y : x;
  }
  
  float Fmaxf(float x, float y)
  {
  	if (x > y || !(y == y))
  		return x;
  	else if (y > x || !(x == x))
  		return y;
  	else if (x != 0.f)
  		return x;
  	else
  		return Float2Int(x) == 0 ? x : y;
  }
  
  void TestMin(float a, float b, float ret)
  {
  	float x = Fminf(a, b);
  	if (x != ret)
  		printf("min(%f, %f) returned %f, should return ret: %f\n", a, b, x, ret);
  	assert(Float2Int(x) == Float2Int(ret));
  	float y = Fminf(b, a);
  	if (y != ret)
  		printf("min(%f, %f) returned %f, should return ret: %f\n", b, a, y, ret);
  	assert(Float2Int(y) == Float2Int(ret));
  }
  
  void TestMax(float a, float b, float ret)
  {
  	float x = Fmaxf(a, b);
  	if (x != ret)
  		printf("max(%f, %f) returned %f, should return ret: %f\n", a, b, x, ret);
  	assert(Float2Int(x) == Float2Int(ret));
  	float y = Fmaxf(b, a);
  	if (y != ret)
  		printf("max(%f, %f) returned %f, should return ret: %f\n", b, a, x, ret);
  	assert(Float2Int(y) == Float2Int(ret));
  }
  
  int main()
  {
  	TestMin(-INFINITY, INFINITY, -INFINITY);
  	TestMax(-INFINITY, INFINITY, INFINITY);
  
  	TestMin(-INFINITY, 1.f, -INFINITY);
  	TestMax(-INFINITY, 1.f, 1.f);
  
  	TestMin(INFINITY, 1.f, 1.f);
  	TestMax(INFINITY, 1.f, INFINITY);
  
  	TestMin(-INFINITY, NAN, -INFINITY);
  	TestMax(-INFINITY, NAN, -INFINITY);
  	assert(Float2Int(0.0f) != Float2Int(-0.0f));
  
  	if (NAN == NAN)
  		printf("NAN == NAN\n");
  	if (NAN != NAN)
  		printf("NAN != NAN\n");
  	TestMin(-0.0f, 0.0f, -0.0f);
  	TestMax(-0.0f, 0.0f, 0.0f);
  	printf("Success!\n");
  }
  