C++ 函数重载实现平方根计算：sroot() 函数

#include #include

double sroot(int num) { return sqrt(num); }

double sroot(long num) { return sqrt(num); }

double sroot(float num) { return sqrt(num); }

int main(int argc, char* argv[]) { int num = std::stoi(argv[1]); std::cout << sroot(num) << std::endl;

long long_num = std::stol(argv[1]);
std::cout << sroot(long_num) << std::endl;

float float_num = std::stof(argv[1]);
std::cout << sroot(float_num) << std::endl;

return 0;

}