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CA 2E reserves certain letters to use as field prefixes so that you do not inadvertently duplicate field names in HLL programs. The program you use to allocate format prefixes, Edit Generation Type Details, contains a check to ensure that you do not use the reserved values.
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RPG |
COBOL/ RPGCBL |
Reserved for |
|---|---|---|
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P |
P |
Passed parameter fields |
|
W |
W |
Program work fields |
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X |
X |
User service subroutine fields |
|
Y |
Y |
CA 2E internal use |
|
U |
U |
Use in user EXCUSRSRC fields |
|
V |
V |
External date fields |
|
Z |
Z |
CA 2E service subroutine fields |
|
# |
X |
Use by panel fields |
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$ |
Z |
Use by printer fields |
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@ |
Y |
Use by special fields |
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