[交流] C++ 指针作为函数变量

#include <iostream>
#include <cmath>

void CalculateRealAndImaginary(double r, double theta, double *pReal, double *pImaginary);

int main(int argc,char* argv[])
{
     double  r = 3.1;
     double theta = 1.234;
     double x, y;
     CalculateRealAndImaginary(r, theta, &x, &y);
     std::cout << "Real part = " << x << "\n";
     std::cout << "Imaginary part = " << y << "\n";

     return 0;
}

void CalculateRealAndImaginary(double r, double theta, double *pReal, double *pImaginary)
{
      *pReal = r*cos(\theta);
      *pImaginary = r*sin(\theta);
}