Function current_time

extra/yassl/taocrypt/benchmark/benchmark.cpp:429–443

    #include <windows.h>

    double current_time()
    {
        static bool          init(false);
        static LARGE_INTEGER freq;
    
        if (!init) {
            QueryPerformanceFrequency(&freq);
            init = true;
        }

        LARGE_INTEGER count;
        QueryPerformanceCounter(&count);

        return static_cast<double>(count.QuadPart) / freq.QuadPart;
    }

#else