/src/rt/typeinfo/ti_Ashort.d

  1/**
  2 * TypeInfo support code.
  3 *
  4 * Copyright: Copyright Digital Mars 2004 - 2009.
  5 * License:   <a href="http://www.boost.org/LICENSE_1_0.txt">Boost License 1.0</a>.
  6 * Authors:   Walter Bright
  7 */
  8
  9/*          Copyright Digital Mars 2004 - 2009.
 10 * Distributed under the Boost Software License, Version 1.0.
 11 *    (See accompanying file LICENSE or copy at
 12 *          http://www.boost.org/LICENSE_1_0.txt)
 13 */
 14module rt.typeinfo.ti_Ashort;
 15
 16private import core.stdc.string;
 17private import rt.util.hash;
 18
 19// short[]
 20
 21class TypeInfo_As : TypeInfo_Array
 22{
 23    override bool opEquals(Object o) { return TypeInfo.opEquals(o); }
 24
 25    @trusted:
 26    const:
 27    pure:
 28    nothrow:
 29
 30    override string toString() const pure nothrow @safe { return "short[]"; }
 31
 32    override size_t getHash(in void* p)
 33    {
 34        short[] s = *cast(short[]*)p;
 35        return hashOf(s.ptr, s.length * short.sizeof);
 36    }
 37
 38    override bool equals(in void* p1, in void* p2)
 39    {
 40        short[] s1 = *cast(short[]*)p1;
 41        short[] s2 = *cast(short[]*)p2;
 42
 43        return s1.length == s2.length &&
 44               memcmp(cast(void *)s1, cast(void *)s2, s1.length * short.sizeof) == 0;
 45    }
 46
 47    override int compare(in void* p1, in void* p2)
 48    {
 49        short[] s1 = *cast(short[]*)p1;
 50        short[] s2 = *cast(short[]*)p2;
 51        size_t len = s1.length;
 52
 53        if (s2.length < len)
 54            len = s2.length;
 55        for (size_t u = 0; u < len; u++)
 56        {
 57            int result = s1[u] - s2[u];
 58            if (result)
 59                return result;
 60        }
 61        if (s1.length < s2.length)
 62            return -1;
 63        else if (s1.length > s2.length)
 64            return 1;
 65        return 0;
 66    }
 67
 68    override @property const(TypeInfo) next() nothrow pure
 69    {
 70        return typeid(short);
 71    }
 72}
 73
 74
 75// ushort[]
 76
 77class TypeInfo_At : TypeInfo_As
 78{
 79    @trusted:
 80    const:
 81    pure:
 82    nothrow:
 83
 84    override string toString() const pure nothrow @safe { return "ushort[]"; }
 85
 86    override int compare(in void* p1, in void* p2)
 87    {
 88        ushort[] s1 = *cast(ushort[]*)p1;
 89        ushort[] s2 = *cast(ushort[]*)p2;
 90        size_t len = s1.length;
 91
 92        if (s2.length < len)
 93            len = s2.length;
 94        for (size_t u = 0; u < len; u++)
 95        {
 96            int result = s1[u] - s2[u];
 97            if (result)
 98                return result;
 99        }
100        if (s1.length < s2.length)
101            return -1;
102        else if (s1.length > s2.length)
103            return 1;
104        return 0;
105    }
106
107    override @property const(TypeInfo) next() nothrow pure
108    {
109        return typeid(ushort);
110    }
111}
112
113// wchar[]
114
115class TypeInfo_Au : TypeInfo_At
116{
117    @trusted:
118    const:
119    pure:
120    nothrow:
121
122    override string toString() const pure nothrow @safe { return "wchar[]"; }
123
124    override @property const(TypeInfo) next() nothrow pure
125    {
126        return typeid(wchar);
127    }
128}