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52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
//===-- Support/hash_set - "Portable" wrapper around hash_set ---*- C++ -*-===//
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//
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// This file provides a wrapper around the mysterious <hash_set> header file
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// that seems to move around between GCC releases into and out of namespaces at
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// will. #including this header will cause hash_set to be available in the
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// global namespace.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SUPPORT_HASH_SET
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#define SUPPORT_HASH_SET
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// Compiler Support Matrix
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//
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// Version Namespace Header File
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// 2.95.x :: hash_set
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// 3.0.4 std ext/hash_set
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// 3.1 __gnu_cxx ext/hash_set
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//
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#include "Config/config.h"
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#ifdef HAVE_GNU_EXT_HASH_SET
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#include <ext/hash_set>
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#define HASH_NAMESPACE __gnu_cxx
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#else
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#ifdef HAVE_STD_EXT_HASH_SET
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#include <ext/hash_set>
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#define HASH_NAMESPACE std
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#else
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#include <hash_set>
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#define HASH_NAMESPACE
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#endif
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#endif
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using HASH_NAMESPACE::hash_set;
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using HASH_NAMESPACE::hash;
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// Include vector because ext/hash_set includes stl_vector.h and leaves
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// out specializations like stl_bvector.h, causing link conflicts.
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#include <vector>
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#include <Support/HashExtras.h>
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#endif
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