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/**
* @file llhash.h
* @brief Wrapper for a hash function.
*
* Copyright (c) 2004-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#ifndef LL_LLHASH_H
#define LL_LLHASH_H
#include "llpreprocessor.h" // for GCC_VERSION
#if (LL_WINDOWS)
#include <hash_map>
#include <algorithm>
#elif LL_DARWIN || LL_LINUX
# if GCC_VERSION >= 30400 // gcc 3.4 and up
# include <ext/hashtable.h>
# elif __GNUC__ >= 3
# include <ext/stl_hashtable.h>
# else
# include <hashtable.h>
# endif
#else
#error Please define your platform.
#endif
template<class T> inline size_t llhash(T value)
{
#if LL_WINDOWS
return stdext::hash_value<T>(value);
#elif ( (defined _STLPORT_VERSION) || ((LL_LINUX) && (__GNUC__ <= 2)) )
std::hash<T> H;
return H(value);
#elif LL_DARWIN || LL_LINUX
__gnu_cxx::hash<T> H;
return H(value);
#else
#error Please define your platform.
#endif
}
#endif
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