406891c62a
This patch checks that the compiler in use is either gcc >= 4.4 or clang >= 2.9. and enables building with --std=c++0x in all cases. As a consequence, we can tidy up the hashmap and always have static_assert available. If anyone wants to use alternative compilers, icc for example supports c++0x to a similar level and could be added if needed. This patch opens up for a more elaborate use of c++0x features that are present in gcc 4.4 and clang 2.9, e.g. auto typed variables, variadic templates, rvalues and move semantics, and strongly typed enums. There will be no going back on this one...
93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
/*
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* Copyright (c) 2012 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Nathan Binkert
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* Andreas Hansson
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*/
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#ifndef __HASHMAP_HH__
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#define __HASHMAP_HH__
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#if defined(__clang__)
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// check if the header is present, which requires -stdlib=libc++, and
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// that in turn causes problems with incomplete template parameters
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#if (__has_include(<unordered_map>))
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#define HAVE_STD_UNORDERED_MAP 1
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#endif
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#else
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// we only support gcc >= 4.4 as the other option
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#define HAVE_STD_UNORDERED_MAP 1
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#endif
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// set a default value of 0 clang with the header in the tr1 namespace
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#ifndef HAVE_STD_UNORDERED_MAP
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#define HAVE_STD_UNORDERED_MAP 0
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#endif
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#define hash_map unordered_map
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#define hash_multimap unordered_multimap
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#define hash_set unordered_set
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#define hash_multiset unordered_multiset
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#if HAVE_STD_UNORDERED_MAP
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// gcc or clang with libc++
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#include <unordered_map>
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#include <unordered_set>
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#define __hash_namespace std
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#define __hash_namespace_begin namespace std {
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#define __hash_namespace_end }
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#else
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// clang with libstdc++
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#include <tr1/unordered_map>
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#include <tr1/unordered_set>
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#define __hash_namespace std::tr1
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#define __hash_namespace_begin namespace std { namespace tr1 {
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#define __hash_namespace_end } }
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#endif
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namespace m5 {
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using ::__hash_namespace::hash_multimap;
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using ::__hash_namespace::hash_multiset;
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using ::__hash_namespace::hash_map;
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using ::__hash_namespace::hash_set;
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using ::__hash_namespace::hash;
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}
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#endif // __HASHMAP_HH__
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