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#include<ctime> class init_random { public: init_random() { std::cout <<"init" << std::endl; srand(0); } }; class Random { public: Random(void); ~Random(void); int Next(const int maxValue); int Next(const int minValue,const int maxValue); int Next(); double NextDouble(); private: static init_random _g_rand; }; init_random Random::_g_rand; Random::Random(void) { } int Random::Next() { return rand(); } int Random::Next(const int maxValue) { int rez=rand()%maxValue; return rez; } int Random::Next(const int minValue, const int maxValue) { if(maxValue>minValue) { int rez=rand()%(maxValue-minValue)+minValue; return rez; } else return 0; } double Random::NextDouble() { double rez=rand()/(static_cast<double> (RAND_MAX)); return rez; } Random::~Random(void) { } int main() { Random r; std::cout << r.Next(); }
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