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User talk:Geoffhacker: Difference between revisions
Undo revision 200098 by Geoffhacker (talk) Reply.
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(Undo revision 200098 by Geoffhacker (talk) Reply.) |
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==fixing a REXX bug==
Please check (execute) the program after you "fix" a bug to ensure that the output is (still) correct. There was no bug in the REXX program you "fixed". The output was correct with the original program. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 23:20, 3 March 2015 (UTC)
:My bad. But when I tried to run your program as-is, I received the following message:
:c:\Users\hackerg\Downloads>rexx lcsubstr.rex
: 10 *-* parse arg x,y,$
:Error 13 running c:\Users\hackerg\Downloads\LCSubstr.rex line 10: Invalid chara
:cter in program
:Error 13.1: Incorrect character in program "$" ('24'X)
:As it is, I assume that that must mean that there is no boundary checking in REXX. When I tried to implement it as-is in C# I got an out-of-bounds error, and by subtracting j from the length of x I corrected that error and produced the correct result when I executed the program. --[[User:Geoffhacker|Geoffhacker]] ([[User talk:Geoffhacker|talk]]) 07:30, 4 March 2015 (UTC)
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