static_constructor.h

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#ifndef CPPCOMMON_UTILITY_STATIC_CONSTRUCTOR_H
#define CPPCOMMON_UTILITY_STATIC_CONSTRUCTOR_H
 
namespace CppCommon {
 
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress" // GCC: warning: the address of 'expression', will always evaluate as 'true'
#elif defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable: 4127) // C4127: conditional expression is constant
#endif
 
 
template <void (*construct)(), void (*destruct)() = nullptr>
class StaticConstructor
{
    struct constructor;
 
public:
    static constructor instance;
 
private:
    struct constructor
    {
        constructor()
        {
            if (construct != nullptr)
                construct();
        }
 
        ~constructor()
        {
            if (destruct != nullptr)
                destruct();
        }
 
        void operator()() {}
    };
};
 
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#elif defined(_MSC_VER)
#pragma warning(pop)
#endif
 
} // namespace CppCommon
 
#include "static_constructor.inl"
 
#endif // CPPCOMMON_UTILITY_STATIC_CONSTRUCTOR_H