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murugan_mf
Joined: 31 Jan 2008
Posts: 30
Location: Chennai, India
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| Posted: Thu Jul 10, 2008 4:44 pm Post subject: What is UNION in PL/I |
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| can any one explain what is UNION in PL/I ? |
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enrico-sorichetti
Joined: 14 Mar 2007
Posts: 2661
Location: italy
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| Posted: Thu Jul 10, 2008 4:48 pm Post subject: Reply to: UNION |
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did You care to look at the manual ,
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ibm3lr60/8.9?SHELF=IBMSH360.bks&DT=20071130131006
if something is not clear somebody will be glad to explain |
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murugan_mf
Joined: 31 Jan 2008
Posts: 30
Location: Chennai, India
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| Posted: Thu Jul 10, 2008 5:08 pm Post subject: |
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thanks enrico I got some idea but I am having one doubt:
How the size mismatch can occur for Individual and First_Name.
Code: Declare 1 Client,
2 Number pic '999999',
2 Type bit(1),
2 * bit(7),
2 Name union,
3 Individual,
5 Last_Name char(20),
5 First_Name union,
7 First char(15),
7 Initial char(1),
3 Company char(35),
2 * char(0); |
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enrico-sorichetti
Joined: 14 Mar 2007
Posts: 2661
Location: italy
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| Posted: Thu Jul 10, 2008 5:22 pm Post subject: Reply to: UNION |
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The UNION attribute is just a more flexible form of DEFINED,
it just determines the starting point of a field with no checking of lengths IIRC
- DEFINED works only at the 1 level ( or no level ) variables
so to achieve the same result with the defined
You would have to repeat the whole structure |
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cgk_106
Joined: 22 Dec 2006
Posts: 19
Location: chennai
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| Posted: Thu Jul 17, 2008 4:56 pm Post subject: |
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dick scherrer
Joined: 23 Nov 2006
Posts: 8022
Location: 221 B Baker St
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| Posted: Thu Jul 17, 2008 10:56 pm Post subject: Reply to: What is UNION in PL/I |
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Hello,
Did you have something to ask/add. . . .?
d |
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