singleton.hpp

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#pragma once
 
#include "condy/detail/utils.hpp"
 
namespace condy {
namespace detail {
 
template <typename T> class ThreadLocalSingleton {
public:
    CONDY_DELETE_COPY_MOVE(ThreadLocalSingleton);
 
    static T &current() noexcept {
        static thread_local T instance;
        return instance;
    }
 
private:
    ThreadLocalSingleton() = default;
 
    friend T;
};
 
} // namespace detail
} // namespace condy