view tango/lib/compiler/llvmdc/typeinfo/ti_float.d @ 339:385a18242485 trunk

[svn r360] Another mostly rewrite of DtoArrayInit. Should be much more robust now, and probably faster code generated for the most common cases too! Fixed issues with slice initialization (!!!) of multidimensional static arrays. Attempt to fix issue with referencing nested 'this' pointers introduced in DMD 1.033 merge.
author lindquist
date Sun, 13 Jul 2008 01:29:49 +0200
parents 1700239cab2e
children
line wrap: on
line source


// float

module typeinfo.ti_float;

class TypeInfo_f : TypeInfo
{
    char[] toString() { return "float"; }

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

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

    static int _compare(float d1, float d2)
    {
        if (d1 !<>= d2)         // if either are NaN
        {
            if (d1 !<>= d1)
            {   if (d2 !<>= 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()
    {   static float r;

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