WSJT-X/boost/libs/config/test/boost_has_hash.ipp

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// (C) Copyright John Maddock 2001.
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org/libs/config for most recent version.
// MACRO: BOOST_HAS_HASH
// TITLE: <hashset> and <hashmap>
// DESCRIPTION: The C++ implementation provides the (SGI) hash_set
// or hash_map classes.
#if defined(__GLIBCXX__) || (defined(__GLIBCPP__) && __GLIBCPP__>=20020514) // GCC >= 3.1.0
# ifdef BOOST_NO_CXX11_STD_UNORDERED
# define BOOST_STD_EXTENSION_NAMESPACE __gnu_cxx
# define _BACKWARD_BACKWARD_WARNING_H 1 /* turn off warnings from the headers below */
# include <ext/hash_set>
# include <ext/hash_map>
# else
// If we have BOOST_NO_CXX11_STD_UNORDERED *not* defined, then we must
// not include the <ext/*> headers as they clash with the C++0x
// headers. ie in any given translation unit we can include one
// or the other, but not both.
# define DISABLE_BOOST_HAS_HASH_TEST
# endif
#else
#include <hash_set>
#include <hash_map>
#endif
#ifndef BOOST_STD_EXTENSION_NAMESPACE
#define BOOST_STD_EXTENSION_NAMESPACE std
#endif
namespace boost_has_hash{
#ifndef DISABLE_BOOST_HAS_HASH_TEST
template <class Key, class Eq, class Hash, class Alloc>
void foo(const BOOST_STD_EXTENSION_NAMESPACE::hash_set<Key,Eq,Hash,Alloc>& )
{
}
template <class Key, class T, class Eq, class Hash, class Alloc>
void foo(const BOOST_STD_EXTENSION_NAMESPACE::hash_map<Key,T,Eq,Hash,Alloc>& )
{
}
#endif
int test()
{
#ifndef DISABLE_BOOST_HAS_HASH_TEST
BOOST_STD_EXTENSION_NAMESPACE::hash_set<int> hs;
foo(hs);
BOOST_STD_EXTENSION_NAMESPACE::hash_map<int, long> hm;
foo(hm);
#endif
return 0;
}
}