I am new to C programming and recently I have been playing around with functions in C programming. But I have a simple problem:

Basically I want to pass an integer to a function, have the function edit it and then pass back the integer to the main function. I am working on this but it isn't working.....

Here is my code:

int update_SEG_values(int DIGIT_1, int DIGIT_2) {

    // How many tens in the "TEMP_COUNT".
    DIGIT_2 = ((TEMP_COUNT) / 10);

    // How much is left for us to display.
    TEMP_COUNT = TEMP_COUNT - ((DIGIT_2) * 10);

    // How many ones.
    DIGIT_1 = ((TEMP_COUNT) / 1);

    return(DIGIT_1, DIGIT_2);
}

What am I doing wrong here?