structureptr.cpp

来自「C++ sample code, for the book: C++ blac」· C++ 代码 · 共 26 行

#include <iostream>
#include <cmath>
using namespace std;

struct complex_number
{
    int real;
    int imaginary;
};

double magnitude(complex_number * c);

int main()
{
    complex_number complex = {3, 4};

    cout << "Maginitude of the complex number: " << magnitude(&complex) << endl;

    return 0;
}

double magnitude(complex_number* c)
{
    return sqrt(c->real * c->real + c->imaginary * c->imaginary);
}