Exit command
BlitzMax Forums/BlitzMax Programming/Exit command
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Take a look at this:-
Graphics 640,480
Repeat
Cls
For Local column = 0 To 9
For Local row = 0 To 19
If row = 3 And column = 4 Then
DrawText("row = "+row,0,0)
DrawText("column = "+column,0,20)
Exit
EndIf
Next
Next
DrawText("row = "+row,0,40)
DrawText("column = "+column,0,60)
Flip
FlushMem
Until KeyDown(1)
I'm expecting row = 3 column = 4 row = 3 column = 4 but my results are:- row = 3 column = 4 row = 10 column = 20 Why does the exit command auto complete the remaining loop increments and not entirely break out of the loop? |
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Doh! I've already discovered the problem, just by reading through my own post. I forgot to add:- If row = 3 And column = 4 Then Exit in first for loop line. STUPID ME! Move along now, nothing to see here. :) |
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Or you could do it like this:Strict
Graphics 640,480
Repeat
Cls
Local row, column
#colsandrows
For column = 0 To 9
For row = 0 To 19
If row = 3 And column = 4 Then
DrawText("row = "+row,0,0)
DrawText("column = "+column,0,20)
Exit colsandrows
EndIf
Next
Next
DrawText("row = "+row,0,40)
DrawText("column = "+column,0,60)
Flip
FlushMem
Until KeyDown(1) |
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| [edit]Err...What Beaker said...[/edit] |
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| Wow that's pretty neat. Is that # like a goto branch command? Quite unusual that you have to position it at the beginning of your loops. |
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| It's a loop label. Labels always start with # in bmax. |
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| Yeah, but there's no End Loop sort of command. I'm amazed BMax knows where to jump out of both loops as to me that would jump back before the loops. |
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| After a long discussion (do a search for it), this was the agreed compromise to the problem of Exiting multiple loops. |
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| http://www.blitzbasic.com/Community/posts.php?topic=42894&hl=Exit |
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| Cheers, interesting read that. Had a bit of chuckle though when it ended with a fight :) |
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