flow_memory_resource.h

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#pragma once
#include <cstddef>
 
namespace flow {

  class MemoryResource {
  public:
    virtual ~MemoryResource() = default;
 
    void* allocate(std::size_t bytes, std::size_t alignment = alignof(std::max_align_t)) {
      return allocateImp(bytes, alignment);
    }
 
    void deallocate(void* address, std::size_t bytes, std::size_t alignment = alignof(std::max_align_t)) {
      deallocateImp(address, bytes, alignment);
    }
 
  protected:
    virtual void* allocateImp(std::size_t bytes, std::size_t alignment) = 0;
    virtual void deallocateImp(void* address, std::size_t bytes, std::size_t alignment) = 0;
  };
}