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Don't rely on the g++ version to include tr1/unordered_map and co.

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The previous setup failed with clang++ 3.0.

* m4/stl.m4: New file.
* configure.ac: Call AC_HEADER_UNORDERED_MAP,
AC_HEADER_TR1_UNORDERED_MAP, and AC_HEADER_EXT_HASH_MAP.
* src/misc/hash.hh: Include _config.h, and used the
SPOT_HAVE_UNORDERED_MAP, SPOT_HAVE_TR1_UNORDERED_MAP,
or SPOT_HAVE_EXT_HASH_MAP defines to decide which
file to include.
This commit is contained in:
Alexandre Duret-Lutz 2011-12-14 16:51:35 +01:00
parent a804c88e1b
commit 9679032510
4 changed files with 105 additions and 27 deletions
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61
src/misc/hash.hh
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@ -26,11 +26,35 @@
# include <string>
# include <functional>
# include "hashfunc.hh"
# include "misc/hashfunc.hh"
# include "misc/_config.h"
// See the G++ FAQ for details about the following.
# ifdef __GNUC__
# if __GNUC__ < 3
#ifdef SPOT_HAVE_UNORDERED_MAP
# include <unordered_map>
# include <unordered_set>
namespace Sgi = std;
# define hash_map unordered_map
# define hash_multimap unordered_multimap
# define hash_set unordered_set
#else
#ifdef SPOT_HAVE_TR1_UNORDERED_MAP
# include <tr1/unordered_map>
# include <tr1/unordered_set>
namespace Sgi = std::tr1;
# define hash_map unordered_map
# define hash_multimap unordered_multimap
# define hash_set unordered_set
#else
#ifdef SPOT_HAVE_EXT_HASH_MAP
# include <ext/hash_map>
# include <ext/hash_set>
# if __GNUC__ == 3 && __GNUC_MINOR__ == 0
namespace Sgi = std; // GCC 3.0
# else
namespace Sgi = ::__gnu_cxx; // GCC 3.1 to 4.2
# endif
#else
# if defined(__GNUC__) && (__GNUC__ < 3)
# include <hash_map.h>
# include <hash_set.h>
namespace Sgi
@ -41,28 +65,13 @@
using ::hash;
}
# else
# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
# include <tr1/unordered_set> // GCC 4.3
# include <tr1/unordered_map>
namespace Sgi = std::tr1;
# define hash_map unordered_map
# define hash_multimap unordered_multimap
# define hash_set unordered_set
# else
# include <ext/hash_map>
# include <ext/hash_set>
# if __GNUC__ == 3 && __GNUC_MINOR__ == 0
namespace Sgi = std; // GCC 3.0
# else
namespace Sgi = ::__gnu_cxx; // GCC 3.1 to 4.2
# endif
# endif
# endif
# else // ... there are other compilers, right?
# include <hash_map>
# include <hash_set>
namespace Sgi = std;
# endif
#endif
#endif
#endif
namespace spot
{
@ -83,9 +92,9 @@ namespace spot
/// \brief A hash function for strings.
/// \ingroup hash_funcs
/// @{
# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
typedef std::tr1::hash<std::string> string_hash;
# else // GCC < 4.3
#if defined(SPOT_HAVE_UNORDERED_MAP) || defined(SPOT_HAVE_TR1_UNORDERED_MAP)
typedef Sgi::hash<std::string> string_hash;
#else // e.g. GCC < 4.3
struct string_hash:
public Sgi::hash<const char*>,
public std::unary_function<const std::string&, size_t>
@ -98,7 +107,7 @@ namespace spot
}
};
/// @}
# endif
#endif
/// \brief A hash function that returns identity
/// \ingroup hash_funcs