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My first switch statement

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Im trying to use a switch statement to jump to a different function.  All of the lessons I find just tell me how to turn on leds or outputs.  So I have no idea of what to do here.  So far I have this.

 

 

{

int range;     // I just used this cause it was in an example, I think I need it to name my switch statement. 

int flasha;  //  This is the subroutine I want to run.  I will have more late just trying to figure out the first one.

switch(range);

{

case 0:  //  I don't know why I have  to use "0"  it is just in all of the examples and nothing else works.

state==1, flasha;  // state is my input.  When a button is pressed it will count the number of presses and send it to the approiate subroutine.

break:

}

}

 

When I compile this program I get the error

 

case label '0' not within a switch staetment.

 

Can anyone explain what this means or what I'm doing wrong?

 

Thanks

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  • 0

    Hey Dan & Nico.

    Looking at http://www.arduino.cc/en/Tutorial/SwitchCase

    Would not the range value be determined before entering the  switch(range)&case structure?

    I guess you could set it up that for case 0:  to cause the count from the button press(es) to modify the range value and as long that is contained in the main loop() function.  If you do it that way then the other cases would need to reset the range to 0 as the last step within each case #: segment (ie before the break statements;  but not in the case 0: segment).  Then again there may be some rule in the complier that stops the range value from being modified inside the case structure.   This would not be the standard way to do this anyway.   Would be much better to determine the number of button presses, store it in the range variable, and then execute the case statement.   

    Dan,  please create a setup();  a loop(), and a flasha()  which will all be of type void unless they return() a value.       Declare your global variables above the setup() and after the #include file.  

    image

  • 0 in reply to billabott

    Hi Billabot,

     

    Yes, the value for range must definitely be set before entering the switch, as the switch depends on the value of range.

    I assumed Dan had posted just a snippet of his code.

     

    Great example in your picture!

     

    Cheers,

    -Nico

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