0,0 → 1,167 |
// -*- C++ -*- |
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// Copyright (C) 2005-2013 Free Software Foundation, Inc. |
// |
// This file is part of the GNU ISO C++ Library. This library is free |
// software; you can redistribute it and/or modify it under the terms |
// of the GNU General Public License as published by the Free Software |
// Foundation; either version 3, or (at your option) any later |
// version. |
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// This library is distributed in the hope that it will be useful, but |
// WITHOUT ANY WARRANTY; without even the implied warranty of |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
// General Public License for more details. |
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// Under Section 7 of GPL version 3, you are granted additional |
// permissions described in the GCC Runtime Library Exception, version |
// 3.1, as published by the Free Software Foundation. |
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// You should have received a copy of the GNU General Public License and |
// a copy of the GCC Runtime Library Exception along with this program; |
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
// <http://www.gnu.org/licenses/>. |
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
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// Permission to use, copy, modify, sell, and distribute this software |
// is hereby granted without fee, provided that the above copyright |
// notice appears in all copies, and that both that copyright notice |
// and this permission notice appear in supporting documentation. None |
// of the above authors, nor IBM Haifa Research Laboratories, make any |
// representation about the suitability of this software for any |
// purpose. It is provided "as is" without express or implied |
// warranty. |
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/** |
* @file detail/type_utils.hpp |
* Contains utilities for handnling types. All of these classes are based on |
* Modern C++ by Andrei Alxandrescu. |
*/ |
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#ifndef PB_DS_TYPE_UTILS_HPP |
#define PB_DS_TYPE_UTILS_HPP |
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#include <cstddef> |
#include <utility> |
#include <tr1/type_traits> |
#include <ext/type_traits.h> |
#include <ext/numeric_traits.h> |
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namespace __gnu_pbds |
{ |
namespace detail |
{ |
using std::tr1::is_same; |
using std::tr1::is_const; |
using std::tr1::is_pointer; |
using std::tr1::is_reference; |
using std::tr1::is_fundamental; |
using std::tr1::is_member_object_pointer; |
using std::tr1::is_member_pointer; |
using std::tr1::is_base_of; |
using std::tr1::remove_const; |
using std::tr1::remove_reference; |
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// Need integral_const<bool, true> <-> integral_const<int, 1>, so |
// because of this use the following typedefs instead of importing |
// std::tr1's. |
using std::tr1::integral_constant; |
typedef std::tr1::integral_constant<int, 1> true_type; |
typedef std::tr1::integral_constant<int, 0> false_type; |
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using __gnu_cxx::__conditional_type; |
using __gnu_cxx::__numeric_traits; |
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template<typename T> |
struct is_const_pointer |
{ |
enum |
{ |
value = is_const<T>::value && is_pointer<T>::value |
}; |
}; |
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template<typename T> |
struct is_const_reference |
{ |
enum |
{ |
value = is_const<T>::value && is_reference<T>::value |
}; |
}; |
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template<typename T> |
struct is_simple |
{ |
enum |
{ |
value = is_fundamental<typename remove_const<T>::type>::value |
|| is_pointer<typename remove_const<T>::type>::value |
|| is_member_pointer<T>::value |
}; |
}; |
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template<typename T> |
class is_pair |
{ |
private: |
template<typename U> |
struct is_pair_imp |
{ |
enum |
{ |
value = 0 |
}; |
}; |
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template<typename U, typename V> |
struct is_pair_imp<std::pair<U,V> > |
{ |
enum |
{ |
value = 1 |
}; |
}; |
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public: |
enum |
{ |
value = is_pair_imp<T>::value |
}; |
}; |
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// Use C++0x's static_assert if possible. |
#if __cplusplus >= 201103L |
#define PB_DS_STATIC_ASSERT(UNIQUE, E) static_assert(E, #UNIQUE) |
#else |
template<bool> |
struct __static_assert; |
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template<> |
struct __static_assert<true> |
{ }; |
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template<int> |
struct __static_assert_dumclass |
{ |
enum |
{ |
v = 1 |
}; |
}; |
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#define PB_DS_STATIC_ASSERT(UNIQUE, E) \ |
typedef __gnu_pbds::detail::__static_assert_dumclass<sizeof(__gnu_pbds::detail::__static_assert<bool(E)>)> UNIQUE##__static_assert_type |
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#endif |
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template<typename Type> |
struct type_to_type |
{ |
typedef Type type; |
}; |
} // namespace detail |
} // namespace __gnu_pbds |
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#endif |