boostorg/smart_ptr
1
0
Fork 1
mirror of https://github.com/boostorg/smart_ptr.git synced 2025-11-26 04:09:34 +01:00
Code Issues Packages Projects Releases Wiki Activity

Do not use components removed in C++17 (auto_ptr, binary_function)

Browse Source
This commit is contained in:
Peter Dimov
2016-11-06 15:35:46 +02:00
parent bdc19dee01
commit a7fbb0a841
6 changed files with 48 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
include/boost/smart_ptr/owner_less.hpp
View File

@@ -5,6 +5,7 @@
// owner_less.hpp
//
// Copyright (c) 2008 Frank Mori Hess
// Copyright (c) 2016 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
@@ -13,44 +14,20 @@
// See http://www.boost.org/libs/smart_ptr/smart_ptr.htm for documentation.
//
#include <functional>
namespace boost
{
template<typename T> class shared_ptr;
template<typename T> class weak_ptr;
namespace detail
{
template<typename T, typename U>
struct generic_owner_less : public std::binary_function<T, T, bool>
template<class T = void> struct owner_less
{
typedef bool result_type;
typedef T first_argument_type;
typedef T second_argument_type;
template<class U, class V> bool operator()( U const & u, V const & v ) const
{
bool operator()(const T &lhs, const T &rhs) const
{
return lhs.owner_before(rhs);
}
bool operator()(const T &lhs, const U &rhs) const
{
return lhs.owner_before(rhs);
}
bool operator()(const U &lhs, const T &rhs) const
{
return lhs.owner_before(rhs);
}
};
} // namespace detail
template<typename T> struct owner_less;
template<typename T>
struct owner_less<shared_ptr<T> >:
public detail::generic_owner_less<shared_ptr<T>, weak_ptr<T> >
{};
template<typename T>
struct owner_less<weak_ptr<T> >:
public detail::generic_owner_less<weak_ptr<T>, shared_ptr<T> >
{};
return u.owner_before( v );
}
};
} // namespace boost