C++ basics - Struct

5

Struct

#include <iostream>
using namespace std;
typedef struct _complex
{
double r, i;
} Complex;
Complex mult( Complex a, Complex b )
{
Complex p;
p.r = a.r * b.r - a.i * b.i;
p.i = a.i * b.r + a.r * b.i;
return p;
}
void print( Complex c )
{
cout << "(r=" << c.r << " i=" << c.i << ")";
}
int main() {
Complex x, y;
x.r = 2.2;
x.i = -1.3;
y.r = 4.1;
y.i = 1;
Complex c = mult( x, y );
cout << "c=";
print( c );
cout << endl;
}

$ g++ -g -o struct struct.cpp
$ ./struct
c=(r=10.32 i=-3.13)

Comments