In what order does the console read the code?

[Eddie Risto]

Hey guys. Second post :D

So, I have a question. I'm about a week into this whole C++ nonsense, and I'm beginning to see something I didn't expect. As far as programming experience, I'm pretty good at QBASIC, and TBASIC; programming calculators. In both of those languages, the console reads the code top down, going from each line to the next and executing the code until it sees a :goto Lbl .

That being said, that's my understanding of programming. So, in a basic counting program like below, is that the methodology used? Does the console read the code and execute starting with the first thing it sees?

#include <iostream>
using namespace std;

int main ()
{
    long n, a;
    a = 0;
    cout << "What number would you like to count to?";
    cin >> n;
    while (a < n)
        cout << a << endl, a=a+1;
    while (a < 0)
        cout << "Error, please enter a positive number";
    if (n = a)
        cout << n;
    return 0;
}

Perhaps a better question, more practical; if I were to switch the places of both of those while routines, would it make any difference in the way the code is read and executed?

Thanks in advance.

[giblit]

The code is read from left - > right from top - > bottom.

Try this for example:

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#include <iostream> //std::cout , std::flush , std::endl int main() { std::cout << "Hello " << std::flush; std::cout << "world!" << std::endl; }

Hello world!

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#include <iostream> //std::cout , std::flush , std::endl; int main() { std::cout << "world!" << std::flush; std::cout << "Hello " << std::endl; }

world!Hello