/**
* Copyright (c) 2018 Cornell University.
*
* Author: Ted Yin <tederminant@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _SALTICIDAE_REF_H
#define _SALTICIDAE_REF_H
#include <atomic>
#include <functional>
namespace salticidae {
template<typename T>
struct default_delete {
constexpr default_delete() = default;
void operator()(T *ptr) const {
static_assert(!std::is_void<T>::value,
"can't delete pointer to incomplete type");
static_assert(sizeof(T) > 0,
"can't delete pointer to incomplete type");
delete ptr;
}
};
template<typename T>
struct default_delete<T[]> {
constexpr default_delete() = default;
void operator()(T *ptr) const {
static_assert(sizeof(T) > 0,
"can't delete pointer to incomplete type");
delete [] ptr;
}
};
template<typename T, typename D>
class BoxObj;
template<typename T, typename D>
class _BoxObj {
protected:
using ptr_type = T *;
ptr_type obj;
constexpr _BoxObj(ptr_type obj)