Code Choser for ROBOTC

VEX V5 General Discussion Technical Discussion
1

My student has used the sample program to help create a competition program, but he keeps getting this error message: “Error: Undefined variable ‘count’. ‘short’ assumed.” Any ideas on how to fix this?

2

I assume that you are using robotc from the error posted. The variable count has to first be declared before it can be used.

Example:
int count=0;//declares the variable count as an integer(what I believe is missing)

count=count+1;//operation on variable–this is where your error would be because the variable was not declared

3

This is correct. If you provide the code then we can be more specific about how to fix it.

4

Yes, we are using RobotC.
Here is the line that is gettin the error: “switch(count){”
The programmer has modified the “Code Choser” template to fit a competition program.

5

Please copy paste all of your code.

6

This is an excerpt from the sample code.

task main()
{
**        //Declare count variable to keep track of our choice
        int count = 0;
**
    //------------- Beginning of User Interface Code ---------------
    //Clear LCD
    clearLCDLine(0);
    clearLCDLine(1);
    //Loop while center button is not pressed
    while(nLCDButtons != centerButton)
    {
        //Switch case that allows the user to choose from 4 different options
        switch(count){
        case 0:
            //Display first choice
            displayLCDCenteredString(0, "Autonomous 1");

He has presumably excluded the code I highlighted.

7