view tango/lib/compiler/llvmdc/typeinfo/ti_Ashort.d @ 132:1700239cab2e trunk

[svn r136] MAJOR UNSTABLE UPDATE!!! Initial commit after moving to Tango instead of Phobos. Lots of bugfixes... This build is not suitable for most things.
author lindquist
date Fri, 11 Jan 2008 17:57:40 +0100
parents
children 7816aafeea3c
line wrap: on
line source


module typeinfo.ti_Ashort;

private import tango.stdc.string;

// short[]

class TypeInfo_As : TypeInfo
{
    char[] toString() { return "short[]"; }

    hash_t getHash(void *p)
    {   short[] s = *cast(short[]*)p;
        size_t len = s.length;
        short *str = s.ptr;
        hash_t hash = 0;

        while (1)
        {
            switch (len)
            {
                case 0:
                    return hash;

                case 1:
                    hash *= 9;
                    hash += *cast(ushort *)str;
                    return hash;

                default:
                    hash *= 9;
                    hash += *cast(uint *)str;
                    str += 2;
                    len -= 2;
                    break;
            }
        }

        return hash;
    }

    int equals(void *p1, void *p2)
    {
        short[] s1 = *cast(short[]*)p1;
        short[] s2 = *cast(short[]*)p2;

        return s1.length == s2.length &&
               memcmp(cast(void *)s1, cast(void *)s2, s1.length * short.sizeof) == 0;
    }

    int compare(void *p1, void *p2)
    {
        short[] s1 = *cast(short[]*)p1;
        short[] s2 = *cast(short[]*)p2;
        size_t len = s1.length;

        if (s2.length < len)
            len = s2.length;
        for (size_t u = 0; u < len; u++)
        {
            int result = s1[u] - s2[u];
            if (result)
                return result;
        }
        if (s1.length < s2.length)
            return -1;
        else if (s1.length > s2.length)
            return 1;
        return 0;
    }

    size_t tsize()
    {
        return (short[]).sizeof;
    }

    uint flags()
    {
        return 1;
    }

    TypeInfo next()
    {
        return typeid(short);
    }
}


// ushort[]

class TypeInfo_At : TypeInfo_As
{
    char[] toString() { return "ushort[]"; }

    int compare(void *p1, void *p2)
    {
        ushort[] s1 = *cast(ushort[]*)p1;
        ushort[] s2 = *cast(ushort[]*)p2;
        size_t len = s1.length;

        if (s2.length < len)
            len = s2.length;
        for (size_t u = 0; u < len; u++)
        {
            int result = s1[u] - s2[u];
            if (result)
                return result;
        }
        if (s1.length < s2.length)
            return -1;
        else if (s1.length > s2.length)
            return 1;
        return 0;
    }

    TypeInfo next()
    {
        return typeid(ushort);
    }
}

// wchar[]

class TypeInfo_Au : TypeInfo_At
{
    char[] toString() { return "wchar[]"; }

    TypeInfo next()
    {
        return typeid(wchar);
    }
}