Struct allocation_deleter
Synopsis
#include <src/entt/core/memory.hpp>
template<typename Allocator>
struct allocation_deleter: private Allocator
Description
Deleter for allocator-aware unique pointers (waiting for C++20).
- Template Parameters
Args- Types of arguments to use to construct the object.
Mentioned in
- Core Functionalities / Allocator aware unique pointers
Inheritance
Ancestors: Allocator
Methods
| allocation_deleter | Inherited constructors. | |
| operator() | Destroys the pointed object and deallocates its memory. |
Source
Lines 111-134 in src/entt/core/memory.hpp.
template<typename Allocator>
struct allocation_deleter: private Allocator {
/*! @brief Allocator type. */
using allocator_type = Allocator;
/*! @brief Pointer type. */
using pointer = typename std::allocator_traits<Allocator>::pointer;
/**
* @brief Inherited constructors.
* @param alloc The allocator to use.
*/
allocation_deleter(const allocator_type &alloc)
: Allocator{alloc} {}
/**
* @brief Destroys the pointed object and deallocates its memory.
* @param ptr A valid pointer to an object of the given type.
*/
void operator()(pointer ptr) {
using alloc_traits = typename std::allocator_traits<Allocator>;
alloc_traits::destroy(*this, to_address(ptr));
alloc_traits::deallocate(*this, ptr, 1u);
}
};