Allocator.hpp

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#ifndef UTIL_ALLOCATOR_HPP_
#define UTIL_ALLOCATOR_HPP_
 
#include <memory>
#include <vector>
 
namespace util
{
    template <typename Base>
    class Allocator {
      public:
        template <std::derived_from<Base> T, typename... Args>
        [[nodiscard]] T &instanciate(Args &&...args)
        {
            return dynamic_cast<T &>(*_instances.emplace_back(std::make_unique<T>(std::forward<Args>(args)...)).get());
        }
 
      private:
        std::vector<std::unique_ptr<Base>> _instances;
    };
} // namespace util
 
#endif /* !UTIL_ALLOCATOR_HPP_ */