8584e6da4c
Conflicts: indra/llcommon/llhash.h indra/newview/CMakeLists.txt indra/newview/llfloatermodelpreview.cpp indra/newview/llfloatermodelpreview.h indra/newview/llpanelprofile.h
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/**
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* @file llhash.h
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* @brief Wrapper for a hash function.
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*
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* $LicenseInfo:firstyear=2004&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLHASH_H
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#define LL_LLHASH_H
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#include "llpreprocessor.h" // for GCC_VERSION
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#if (LL_WINDOWS)
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#include <hash_map>
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#include <algorithm>
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#elif LL_DARWIN || LL_LINUX
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#if GCC_VERSION >= 40300 || LL_ICC || LL_CLANG// gcc 4.3 or icc 11 and up
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# include <backward/hashtable.h>
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#elif GCC_VERSION >= 30400 // gcc 3.4 and up
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# include <ext/hashtable.h>
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#elif __GNUC__ >= 3
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# include <ext/stl_hashtable.h>
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#else
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# include <hashtable.h>
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#endif
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#elif LL_SOLARIS
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#include <ext/hashtable.h>
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#else
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#error Please define your platform.
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#endif
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// Warning - an earlier template-based version of this routine did not do
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// the correct thing on Windows. Since this is only used to get
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// a string hash, it was converted to a regular routine and
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// unit tests added.
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inline size_t llhash( const char * value )
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{
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#if LL_WINDOWS
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return stdext::hash_value(value);
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#elif ( (defined _STLPORT_VERSION) || ((LL_LINUX) && (__GNUC__ <= 2)) )
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std::hash<const char *> H;
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return H(value);
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#elif LL_DARWIN || LL_LINUX || LL_SOLARIS
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__gnu_cxx::hash<const char *> H;
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return H(value);
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#else
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#error Please define your platform.
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#endif
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}
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#endif
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