view tango/lib/compiler/llvmdc/typeinfo/ti_float.d @ 323:0d52412d5b1a trunk

[svn r344] Fixed some very minor issues with the usage listing when calling llvmdc with no arguments. Changed the way moduleinfo is registered to use the same approach as DMD, this eliminates the need for correct linking order and should make the way for using a natively compiled runtime library. This should speed up linking tremendously and should now be possible. Fixed the llvm.used array to only be emitted if really necessary.
author lindquist
date Wed, 09 Jul 2008 23:43:51 +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];
    }
}