view lphobos/typeinfo1/ti_real.d @ 127:facc562f5674 trunk

[svn r131] Fixed #11 All associative array properties now work as they should. Fixed problems with some cases of array.length and array.ptr. Fixed some problems with array properties. Fixed 'in' contracts.
author lindquist
date Fri, 30 Nov 2007 12:56:52 +0100
parents 2c3cd3596187
children
line wrap: on
line source


// real

module typeinfo1.ti_real;

class TypeInfo_e : TypeInfo
{
    char[] toString() { return "real"; }

    hash_t getHash(void *p)
    {
	return (cast(uint *)p)[0] + (cast(uint *)p)[1] + (cast(ushort *)p)[4];
    }

    static bool _isnan(real r)
    {
	return r !<>= 0;
    }

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

    static int _compare(real d1, real 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(real *)p1, *cast(real *)p2);
    }

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

    size_t tsize()
    {
	return real.sizeof;
    }

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

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

    void[] init()
    {	static real r;

	return (&r)[0 .. 1];
    }
}