view run/ieee_754_zerosdq_01.d @ 1583:6820e66700df

[Issue 1836] New: Inline assembler can't use enum values as parameters. <burton-radons@shaw.ca> 2007-02-14 http://d.puremagic.com/issues/show_bug.cgi?id=1836
author thomask
date Fri, 22 Feb 2008 07:55:23 +0000
parents e720ce827c1c
children
line wrap: on
line source

// $HeadURL$
// $Date$
// $Author$

module dstress.run.ieee_754_zerosdq_01;

// Check whether IEEE 754 signed zero is correctly supported.

union S{
	float f;
	uint[1] i;
}

int main(){
	S s;
	int top=0;


	s.f = 0.0f;
	assert(s.i[top]==0x00000000);

	s.f = -0.0f;
	assert(s.i[top]==0x80000000);

	s.f = 0.0f - 0.0f;
	assert(s.i[top]==0x00000000);

	s.f = (-0.0f) - 0.0f;
	assert(s.i[top]==0x80000000);

	s.f = 0.0f;
	s.f *= 1.0f;
	assert(s.i[top]==0x00000000);

	s.f = 0.0f;
	s.f *= -1.0f;
	assert(s.i[top]==0x80000000);

	return 0;
}