I am just starting a personal project that people other than myself will actually see, its a set of DnD tools (I know theirs gotta be hundrds of them but its more for the practice than anything else).
The thing is I have never written to any kind of standard, my code tends to be haphazard, under commented, I have *never* written documentation and never worried about standardising the output, or worrying about debugging beyond passing what my lecturer asks for.
I could really use some help in this, online articles, books etc ... I should learn to write legible code, comment properly and sort out errors with a little more finesse.  Preferably  matching GNU code?


#include <iostream>

using namespace std;

int main(int argc, char* argv[])
{
    //their should only be one argument
    if (argc != 2)
    {
        cout<<"Error: invalid argument\n";

        return 1;
    }
    else //if theirs one argument, were ok
    {
        cout<<"Valid argument\n";
    }

    return 0;
}