from_shared_ptr.hpp

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#pragma once
 
#include <concepts>
#include <memory/from_allocator.hpp>
#include <memory/from_delay_delete.hpp>
#include <memory>
 
namespace from {
template <typename T>
using shared_ptr = std::shared_ptr<T>;
 
template <typename T,
    typename AllocatorTag = from::default_allocator_tag,
    typename... Args>
[[nodiscard]] from::shared_ptr<T> make_shared(Args&&... args) {
    using allocator_type = from::allocator<T, AllocatorTag>;
    allocator_type allocator;
    T* p = allocator.allocate(1);
    std::allocator_traits<allocator_type>::construct(allocator, p,
        std::forward<Args>(args)...);
    return from::shared_ptr<T>{ p, from::delay_delete<T, AllocatorTag>{} };
}
} // namespace from