memory_resource.hpp

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#pragma once
 
#include <libcaramel/util/types.hpp>
 
#include <gsl/pointers>
 
#include <cstddef>
 
namespace caramel
{
   class memory_resource
   {
   public:
      using pointer = void*;             
      using const_pointer = const void*; 
 
   public:
      memory_resource() noexcept = default;
      memory_resource(const memory_resource&) noexcept = default;
      memory_resource(memory_resource&&) noexcept = default;
      virtual ~memory_resource() noexcept = default;
 
      auto operator=(const memory_resource&) noexcept -> memory_resource& = default;
      auto operator=(memory_resource&&) noexcept -> memory_resource& = default;
 
      auto operator==(const memory_resource& rhs) const -> bool;
 
      virtual auto allocate(count_t bytes, align_t alignment) noexcept -> pointer = 0;
      virtual void deallocate(gsl::not_null<pointer> ptr, count_t bytes,
                              align_t alignment) noexcept = 0;
      virtual auto is_equal(const memory_resource& other) const noexcept -> bool = 0;
   };
 
   auto get_default_memory_resource() noexcept -> memory_resource*;
   void set_default_memory_resource(gsl::not_null<memory_resource*> p_resource) noexcept;
} // namespace caramel