Re: REXX Porblem - OUTTRAP function
In [EMAIL PROTECTED], on 09/06/2008 at 04:22 AM, SUBSCRIBE IBM-MAIN Neo [EMAIL PROTECTED] said: Strange things happened when I executed the code below. That's because you code depends on X being uninitialized but you assign it a value. You need to be careful about overloading variable names. OBJ_D2: OBJ_D2: PROCEDURE See also http://www.rexxla.org/Newsletter/9812safe.html and http://www.rexxla.org/Newsletter/9901safe.html. -- Shmuel (Seymour J.) Metz, SysProg and JOAT ISO position; see http://patriot.net/~shmuel/resume/brief.html We don't care. We don't have to care, we're Congress. (S877: The Shut up and Eat Your spam act of 2003) -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: REXX Porblem - OUTTRAP function
X is always a bad choice for a variable name in Rexx. Sooner or later you will try to append it to a literal and complain it does not work. do x = 1 to 25 say ' 'x end The ' 'x says you want a hex value, not a blank and the value of x. When you come back to the code you may wish you had used longer and meaningful names. Then again some coders like to struggle and figure out what their code was supposed to do. Rexx Style has been presented at the SHARE Conference Meetings, maybe you should get a copy and avoid some other problems headed your way. On Sat, 6 Sep 2008 04:22:08 -0500, SUBSCRIBE IBM-MAIN Neo [EMAIL PROTECTED] wrote: Strange things happened when I executed the code below. After I entered 2 for OPTS to ran OBJ_D2, I could never leave the loop. But if I comment out the OUTTRAP statements, everything will go fine. So could anyone explain what OUTTRAP has done to my loop? Thanks in advance. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: REXX Porblem - OUTTRAP function
--- Neo wrote: DO FOREVER WHEN OPTS = X OBJ_D2: X = OUTTRAP(COMP_VAR,5,CONCAT) The loop terminates only when your PULL OPTS (why just PULL in the routine) matches the value in variable X, which you are changing with the OUTTRAP. If you meant to have variables in OBJ_D2 local only, you need to change it to a PROCEDURE, with explicit definitions of non-local variables. The simplest fix is to change the original WHEN to OPTS = 'X' Gerhard Postpischil Bradford, VT -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: REXX Porblem - OUTTRAP function
On Sat, 6 Sep 2008 09:07:09 -0400, Gerhard Postpischil wrote: --- Neo wrote: WHEN OPTS = X X = OUTTRAP(COMP_VAR,5,CONCAT) explicit definitions of non-local variables. The simplest fix is to change the original WHEN to OPTS = 'X' A strong concurrence. Generally eschew unquoted literals. And keep yourself honest by starting every EXEC with SIGNAL ON NOVALUE. -- gil -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: REXX Porblem - OUTTRAP function
Thanks, you find the problem. Now I remember I didn't quote X because I wanted the opts to be case insensitive. I'll choose another variable name for OUTTRAP statement. Thanks again for your help. 在2008-09-06 21:07:09，Gerhard Postpischil [EMAIL PROTECTED] 写道： --- Neo wrote: DO FOREVER WHEN OPTS = X OBJ_D2: X = OUTTRAP(COMP_VAR,5,CONCAT) The loop terminates only when your PULL OPTS (why just PULL in the routine) matches the value in variable X, which you are changing with the OUTTRAP. If you meant to have variables in OBJ_D2 local only, you need to change it to a PROCEDURE, with explicit definitions of non-local variables. The simplest fix is to change the original WHEN to OPTS = 'X' Gerhard Postpischil Bradford, VT -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
