libcruft-util/memory/deleter.hpp

67 lines
1.7 KiB
C++
Raw Normal View History

/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2015 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_MEMORY_DELETER_HPP
#define __UTIL_MEMORY_DELETER_HPP
#include <functional>
2017-01-05 15:06:49 +11:00
namespace util::memory {
template <typename T>
class func_deleter {
public:
using func_t = std::function<void(T*)>;
2017-05-23 12:50:51 +10:00
explicit func_deleter (func_t _func):
m_func (_func)
{ ; }
inline void operator() (T *t)
{ m_func (t); }
private:
func_t m_func;
};
// dispatch object deletion to a known member function.
//
// XXX: Generates a "sorry, unimplemented" under GCC (which is
// effectively an ICE). Their bug tracker seems to indicate they don't
// give a fuck, so we can't use this except under clang.
template <
typename ValueT,
typename OwnerT,
void (OwnerT::*Func)(ValueT*)
>
class owner_deleter {
public:
owner_deleter (OwnerT &owner):
m_owner (owner)
{ ; }
inline void operator() (ValueT *t)
{
(m_owner.*Func) (t);
}
private:
OwnerT& m_owner;
};
2017-01-05 15:06:49 +11:00
}
#endif