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Arduino Forum My first switch statement
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Related

My first switch statement

Former Member
Former Member over 13 years ago

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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  • billabott
    billabott over 13 years ago +1
    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…
  • ntewinkel
    ntewinkel over 13 years ago in reply to Former Member +1
    Hi Dan, You are not defining and calling your functions correctly. Remove these two lines, as they define them as integers, which is not the intention: int flasha; int flashb; In the switch statement,…
  • ntewinkel
    ntewinkel over 13 years ago in reply to Former Member +1
    Here's a good link too: http://diyroboticslab.wordpress.com/2009/06/04/ledblink-arduino-program/ It goes into the C programming language, and also has links to what error messages mean.
Parents
  • Former Member
    0 Former Member over 13 years ago

    Ok Nico

     

    I tried your changes.  Now when I go to compile I get the error 'flasha' was not declared in this scope  it is highlighting this section

     

       switch(range)

                       {//open case

                         case 0:

                         buttonst=0;

                         flasha();

                         break;

     

                         case 1:

                         buttonst=2;

                         flashb();

                         break;

                        }// close case

     

    one of the big problems I am having is I dont understand what these errors are talking about.  Is there a place I can go to that will expalin what this means?

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  • billabott
    0 billabott over 13 years ago in reply to Former Member

    To arrive HERE

    image

    One must first go HERE and do THIS:

    image

     

    -=Syntax Matters=-

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  • billabott
    0 billabott over 13 years ago in reply to Former Member

    To arrive HERE

    image

    One must first go HERE and do THIS:

    image

     

    -=Syntax Matters=-

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