view lphobos/typeinfo2/ti_Aint.d @ 73:b706170e24a9 trunk

[svn r77] Fixed foreach on slice. Fixed some nested function problems when accessing outer function parameters. Major changes to handling of structs. Initial support for unions. Probably more...
author lindquist
date Wed, 31 Oct 2007 03:11:32 +0100
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);
    }
}