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

#define DEG_PER_RAD 180/M_PI

void myStuff(string progDir)
{
    cout << endl << "Hey there, world." << endl;
    
    cout << "Our program directory is:\n" << progDir << endl;
    
    float theta = atan(40.0/10);
    cout << "The angle from the origin to (10,40) is: "
         << (theta*DEG_PER_RAD) << " degrees." << endl;
}

int main(int argc, char *argv[])
{
    // Get program directory
    string programDir = argv[0];
    // This might have to change for Linux ('/' instead of '\\')
    programDir = programDir.substr(0, programDir.find_last_of('\\') + 1);
    
    // Seed random number generator
    srand(time(NULL));
    
    // Do whatever we want
    myStuff(programDir);
    
    getchar();
    
    return 0;
}