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Index › Programming Questions & Help › Syntax Questions › Problems with this comparison statement...
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Problems with this comparison statement... (Read 856 times)
Jim Martin
Problems with this comparison statement...
Nov 10th, 2009, 6:46pm  
Ok, I must admit I'm completely stumped on this one.  In my sketch,  I have the following variable declarations (plus many more) at the beginning of the sketch.

int AlertLevel
int AlertKpScale

then further down in the code,  I compare these two values in an 'if' statement :

if (AlertKpScale == AlertLevel);{
 alertsound.loop();
 }

Right before this comparison I perform a println statement to check both of the values. The debug window shows that the variable 'AlertKpScale' is 5,  and the variable AlertLevel is 1

I can't for the life of me figure out why this comparison is evaluating as true, and acting on the alertsound.loop() function... I only want the alertsound.loop() function to fire if the two variables are equal.

What the heck am I missing....it's got to be simple,  but I sure can't figure it out !!

Thanks for any help you can offer.....
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Cedric
Re: Problems with this comparison statement...
Reply #1 - Nov 10th, 2009, 9:20pm  
remove the ;
right now it executes the empty line after your if statement when true and plays alertsound no matter because it doenst belong to it ...
if you remove the ; it should be fine.
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PhiLho 
Re: Problems with this comparison statement...
Reply #2 - Nov 11th, 2009, 1:40am  
Wow, well spotted, Cedric!  Smiley
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Jim Martin
Re: Problems with this comparison statement...
Reply #3 - Nov 11th, 2009, 4:11am  
Thank you Cedric.....now I feel really stupid....you have no idea how long I worked with that statement,  trying to get it to function correctly.
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Cedric
Re: Problems with this comparison statement...
Reply #4 - Nov 11th, 2009, 5:53am  
hehe, dont ask me how long i spend with problems like this too... but thats the good thing about this discussion board, you can benefit from the others experience.

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Jim Martin
Re: Problems with this comparison statement...
Reply #5 - Nov 11th, 2009, 6:18am  
Yes,  this board has been a tremendous help for me...I've learned a LOT...thanks to everyone for their patience with me...
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