diff options
Diffstat (limited to 'llvm/include/llvm/ADT/hash_map.in')
| -rw-r--r-- | llvm/include/llvm/ADT/hash_map.in | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/llvm/include/llvm/ADT/hash_map.in b/llvm/include/llvm/ADT/hash_map.in new file mode 100644 index 00000000000..9f09ef2ba1c --- /dev/null +++ b/llvm/include/llvm/ADT/hash_map.in @@ -0,0 +1,66 @@ +//===-- llvm/ADT/hash_map - "Portable" wrapper around hash_map --*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the LLVM research group and is distributed under +// the University of Illinois Open Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file provides a wrapper around the mysterious <hash_map> header file +// that seems to move around between GCC releases into and out of namespaces at +// will. #including this header will cause hash_map to be available in the +// global namespace. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_ADT_HASH_MAP +#define LLVM_ADT_HASH_MAP + +// Compiler Support Matrix +// +// Version Namespace Header File +// 2.95.x :: hash_map +// 3.0.4 std ext/hash_map +// 3.1 __gnu_cxx ext/hash_map +// + +#if @HAVE_GNU_EXT_HASH_MAP@ +// This is for GCC-3.1+ which puts hash in ext/hash_map +# include <ext/hash_map> +# ifndef HASH_NAMESPACE +# define HASH_NAMESPACE __gnu_cxx +# endif + +// GCC 3.0.x puts hash_map in <ext/hash_map> and in the std namespace. +#elif @HAVE_STD_EXT_HASH_MAP@ +# include <ext/hash_map> +# ifndef HASH_NAMESPACE +# define HASH_NAMESPACE std +# endif + +// Older compilers such as GCC before version 3.0 do not keep +// extensions in the `ext' directory, and ignore the `std' namespace. +#elif @HAVE_GLOBAL_HASH_MAP@ +# include <hash_map> +# ifndef HASH_NAMESPACE +# define HASH_NAMESPACE std +# endif + +// Give a warning if we couldn't find it, instead of (or in addition to) +// randomly doing something dumb. +#else +# warning "Autoconfiguration failed to find the hash_map header file." +#endif + +using HASH_NAMESPACE::hash_map; +using HASH_NAMESPACE::hash_multimap; +using HASH_NAMESPACE::hash; + +// Include vector because ext/hash_map includes stl_vector.h and leaves +// out specializations like stl_bvector.h, causing link conflicts. +#include <vector> + +#include <llvm/ADT/HashExtras.h> + +#endif |
