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How to combine to programs in a project

 
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How to combine to programs in a project
Pitufo
5 Aug, 2008 - 09:49 AM
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I created a project and added two programs to it. For some reasons it doesnt want to compile...i get this...
multiple definition of main
first defined here
id returned 1 exit status
[Built Error][Pro.exe] Error 1


How can i fix it?
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gabehabe
RE: How To Combine To Programs In A Project
5 Aug, 2008 - 10:31 AM
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You probably have 2 mains, or maybe your main doesn't abide to the proper standards.

Does it look like one of the following:
int main ()
int main (int argc, char *argv[])
int main (int argc, char **argv)
ques.gif

If not, post your code and I'll take a look smile.gif

Edit:
After reading the title of your topic, I'm guessing you have two main functions.

You're gonna have to merge them, or rename one of them and call it in your actual main.
Post the code and I'll help you out smile.gif
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Pitufo
RE: How To Combine To Programs In A Project
5 Aug, 2008 - 10:35 AM
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I have a project named pro and two programs in the project

program 1

int main()

program 2

int main()

how can you merge them?

This post has been edited by Pitufo: 5 Aug, 2008 - 10:37 AM
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gabehabe
RE: How To Combine To Programs In A Project
5 Aug, 2008 - 10:58 AM
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I'm gonna need to see all of your code to explain it properly.

Do you want to have a menu to decide which program to run?

Or do you want to run one after the other?

Post it all, and I'll merge it for you and explain it properly smile.gif
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Arttu
RE: How To Combine To Programs In A Project
5 Aug, 2008 - 11:01 AM
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Maybe you have misunderstood what the "project" means.
I think that "project" is just one application, but you can divide your code into different source files. And you can't have more than one main.
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gabehabe
RE: How To Combine To Programs In A Project
5 Aug, 2008 - 11:20 AM
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That's right, that's why I suggested merging them.

When you have a project, it will usually consist of .cpp .h and sometimes .rc files.

One way that you could do it is to rename each main to be functions, so instead of having "main" and "main" you could have "function1" and "function2"

Then, if you put it in a menu, you could have:
cpp
#include <iostream>
using namespace std

// declare your two functions
void function1 ();
void function2 ();

int main ()
{
    cout << "which function would you like to call? (1/2)";
    int choice;
    cin >> choice;
    switch (choice)
    {
        case 1:
            function1(); // function call
            break;
        case 2:
            function2(); // function call
            break;
    }
    return EXIT_SUCCESS;
}

void function1 ()
{
    // function1 definition goes here
}

void function2 ()
{
    // function2 definition goes here
}

Hope this helps smile.gif
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Pitufo
RE: How To Combine To Programs In A Project
6 Aug, 2008 - 09:27 AM
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thanks...you guys rock...
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gabehabe
RE: How To Combine To Programs In A Project
6 Aug, 2008 - 09:34 AM
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we I certainly do tongue.gif
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