Thread: Accessing Void Function Question

  1. #1
    Registered User
    Join Date
    Mar 2003

    Accessing Void Function Question

    I'm working on a project for school, and have a question. For the sake of clarity, let's say I have two functions:

    1. int main() //reads a word from file
    2. void ReadFile() //stores contents of a file in an array

    In main(), I have to see if the word I pulled from the file exists in the array in ReadFile(). My problem, is I don't know how to access the array in ReadFile() from main() since ReadFile() is of type void (a requirement) and since I can't use reference parameters or pointers.

    Please let me know if you have any ideas on how to access this data.

    Last edited by liquidspaces; 03-27-2003 at 11:51 AM.

  2. #2
    Used Registerer jdinger's Avatar
    Join Date
    Feb 2002
    I don't see why you'd want to store the contents into a local array of a void function.

    If you're stuck with using a local variable for the array then you can use a global variable that is populated based on a test performed in the void function. If you aren't stuck with having to use a local variable for the array then declare the array globally.

  3. #3
    Registered User
    Join Date
    Mar 2003
    Unfortunately, those options are out of the question. I definitely don't want to do it this way, but for this assignment my professor created the function prototypes and I have to figure out how to make it work within the constraints of those prototypes and the specs.

    I did, however, figure out how to make this work the way it's supposed seems that simply calling the function from main allows me to manipulate the data. I wasn't aware that it would have such an effect.

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