view lphobos/typeinfo1/ti_float.d @ 984:4c0df37d0421

Removing ldc.conf. (IMPORTANT: run 'cmake .' after pull) Added it to .hgignore. This gets rid of spurious differences caused by CMake regenerating it differently. Just run 'cmake .' to get it back in your local checkout.
author Frits van Bommel <fvbommel wxs.nl>
date Thu, 19 Feb 2009 13:50:05 +0100
parents 373489eeaf90
children
line wrap: on
line source


// float

module typeinfo1.ti_float;

import std.gc: malloc;
class TypeInfo_f : TypeInfo
{
    char[] toString() { return "float"; }

    hash_t getHash(void *p)
    {
	return *cast(uint *)p;
    }

    static bool _isnan(float f)
    {
	return f !<>= 0;
    }

    static int _equals(float f1, float f2)
    {
	return f1 == f2 ||
		(_isnan(f1) && _isnan(f2));
    }

    static int _compare(float d1, float d2)
    {
	if (d1 !<>= d2)		// if either are NaN
	{
	    if (_isnan(d1))
	    {	if (_isnan(d2))
		    return 0;
		return -1;
	    }
	    return 1;
	}
	return (d1 == d2) ? 0 : ((d1 < d2) ? -1 : 1);
    }

    int equals(void *p1, void *p2)
    {
	return _equals(*cast(float *)p1, *cast(float *)p2);
    }

    int compare(void *p1, void *p2)
    {
	return _compare(*cast(float *)p1, *cast(float *)p2);
    }

    size_t tsize()
    {
	return float.sizeof;
    }

    void swap(void *p1, void *p2)
    {
	float t;

	t = *cast(float *)p1;
	*cast(float *)p1 = *cast(float *)p2;
	*cast(float *)p2 = t;
    }

    void[] init()
    {
	return (cast(float*)malloc(float.sizeof))[0..1];
    }
}