Function issues

This is a discussion on Function issues within the C Programming forums, part of the General Programming Boards category; So I guess you can't be redundant in your function and variable names? I'm getting an error that says "Call ...

  1. #1
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    Function issues

    So I guess you can't be redundant in your function and variable names? I'm getting an error that says "Call of non-function in function main." Here's a sample code I wrote just to test the name. I changed the name of the function from counter to something else, but kept the variable names the same, and it worked. Go figure:

    #include <stdio.h>
    #include <stdlib.h>
    int counter();

    main()
    {
    int counter = 0;
    counter = counter();
    printf("%d", counter);
    getch();
    }

    int counter()
    {
    int counter = 0;
    for (counter = 0; counter <10; counter++)
    {
    }
    return counter;
    }

  2. #2
    ....
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    This is where it goes wrong:

    counter = counter();

    Change the name of the variable or the name of the function.

    BTW, function main needs to return something.

    Code:
    int main ()
    {
        int return_value;
        ....
        return return_value;
    }

  3. #3
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    But I thought that C could determine the difference between a function and a variable. Does that mean that I can't have a function with the same name as a variable anywhere in the program?

  4. #4
    aurė entuluva! mithrandir's Avatar
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    >>Does that mean that I can't have a function with the same name as a variable anywhere in the program?<<

    Well look at your program - you've got three things called "counter"...a function, a variable within the function, and a variable in main. Now this is just about breaks every accepted rule of naming conventions in C.

    Even when corrected:

    Code:
    #include <stdio.h>
    #include <stdlib.h>
    
    int count_func();
    
    int main()
    {
    	int counter = 0;
    	counter = count_func();
    	printf("%d", counter);
    	fgetc(stdin);
    	return 0;
    }
    
    int count_func()
    {
    	int counter = 0;
    
    	for (counter = 0; counter < 10; counter++)
    
    	return counter;
    }
    That still returns 0. I assume what you want to do is pass the value of counter in count_func to main, and print that value. Well to do this, you could use a pointer. Otherwise, you could just call the function in main, therefore outputting the value of counter. In any case, my advice is to think about what it is you want your program to do before you code it.

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