How to setup visual c++ 6.0 to compile and run a C program?

This is a discussion on How to setup visual c++ 6.0 to compile and run a C program? within the C Programming forums, part of the General Programming Boards category; I'm trying to build and run a C program in Visual C++ 6.0 but, even if my code is correct ...

  1. #1
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    How to setup visual c++ 6.0 to compile and run a C program?

    I'm trying to build and run a C program in Visual C++ 6.0 but, even if my code is correct (I copy-pasted it from a reliable source), I still get errors. I remember that my teacher instructed us to configure the IDE such that it compiles a C program but I don't remember how it was done. Please help! Really urgent!
    Last edited by BrandNewDeipz; 06-20-2012 at 06:30 AM.

  2. #2
    and the hat of wrongness Salem's Avatar
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    > even if my code is correct (I copy-pasted it from a reliable source), I still get errors
    As a newbie, how would you determine what a "reliable source" is?
    And post your actual error messages.

    > I remember that my teacher instructed us to configure the IDE such that it compiles a C program
    Well making sure you name all the source files as prog.c (and NOT prog.cpp) is one way.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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    Code:
    #include<stdio.h>
    #include<conio.h> 
    main()
    {   
       textcolor(RED);   
       cprintf("C programming");    
       getch();   
       return 0;
    }
    warning C4013: 'textcolor' undefined; assuming extern returning int
    error C2065: 'RED' : undeclared identifier

    I already changed .cpp to .c but I still get the same error.

  4. #4
    Registered User claudiu's Avatar
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    Heh, reliably obsolete is what that load of rubbish is.
    1. Get rid of gets(). Never ever ever use it again. Replace it with fgets() and use that instead.
    2. Get rid of void main and replace it with int main(void) and return 0 at the end of the function.
    3. Get rid of conio.h and other antiquated DOS crap headers.
    4. Don't cast the return value of malloc, even if you always always always make sure that stdlib.h is included.

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    <conio.h> is not a standard header. Functions and constants within it (textcolor(), RED, cprintf(), and getch()) are also non-standard, and not supported by most compilers.

    You also need to specify explicitly that main() returns int (i.e. "int main() ...."). That is deprecated in C, and usually considered bad practice. When compiling as C++ (e.g. with a .cpp extension) it will give another compilation error.

    This means that most of the lines you have obtained from your "reliable source" are invalid. Visual C++ 6.0 is not exactly the most modern compiler, but the error messages it is giving for that code are completely appropriate.
    Right 98% of the time, and don't care about the other 3%.

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    Lol, you have three function calls, none of which are supported by standard C.

    - Get rid of textcolor (use ncurses if you really want that functionality).
    - Change cprintf to just regular printf.
    - Change getch to getchar.

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    Oh. I see. I said it was reliable because it was recommended by our teacher. Thank you for the tips and info.

  8. #8
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    Perhaps you should have started with the most basic "hello world" style program to test your compiler:

    Code:
    #include <stdio.h>
    
    int main(void)
    {
        printf("I like cats.");
        return 0;
    }
    The best part - if you understand Chapter 1 of any 'C' book, you could write this yourself and bypass the copy + paste method for such a simple test.

  9. #9
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    those are TurboC (ancient obsolete compiler) specific functions. s this where you got the code? textcolor in c
    if your instructor said to get it from there, i don't know what to say.

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