view lphobos/typeinfo2/ti_Aint.d @ 1351:8d501abecd24

Initial (but disabled) fix for ticket #294 , the actual part that fixes the bug is in a #if 0 block as I'm afraid it will cause regressions. I'm most likely not going to be around tonight, and maybe not tomorrow as well, so I'm pushing it in case someone wants to run some serious testing/investigate the problem noted in llvmhelpers.cpp : realignOffset .
author Tomas Lindquist Olsen <tomas.l.olsen gmail com>
date Thu, 14 May 2009 17:20:17 +0200
parents 362825278842
children
line wrap: on
line source

module typeinfo2.ti_Aint;

extern(C) int memcmp(void*,void*,size_t);

// int[]

class TypeInfo_Ai : TypeInfo
{
    char[] toString() { return "int[]"; }

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

	while (len)
	{
	    hash *= 9;
	    hash += *cast(uint *)str;
	    str++;
	    len--;
	}

	return hash;
    }

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

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

    int compare(void *p1, void *p2)
    {
	int[] s1 = *cast(int[]*)p1;
	int[] s2 = *cast(int[]*)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;
	}
	return cast(int)s1.length - cast(int)s2.length;
    }

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

    uint flags()
    {
	return 1;
    }

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

// uint[]

class TypeInfo_Ak : TypeInfo_Ai
{
    char[] toString() { return "uint[]"; }

    int compare(void *p1, void *p2)
    {
	uint[] s1 = *cast(uint[]*)p1;
	uint[] s2 = *cast(uint[]*)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;
	}
	return cast(int)s1.length - cast(int)s2.length;
    }

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

// dchar[]

class TypeInfo_Aw : TypeInfo_Ak
{
    char[] toString() { return "dchar[]"; }

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