IBM AS/400 manual Condition, Ceehdlr

ILE	Condition	Handlers
requires a definition for the error-prone	array	ARR1,	and identific
eter lists used by the ILE bindable APIs	CEEHDLR	and	CEEHDLU.

The basic logic of the program is as follows:

1. Register

the

handler

RPGHDLR using the subroutine RegHndlr. This s

calls

the

CEEHDLR

API,

passing

it

the

procedure pointer

to RPGHDLR.

2. Indicate

to

RPGHDLR

that

the

out-of-bounds error is allowed, and

erate

an

out-of-bounds substring

error, then

set off the

indicato

RPGHDLR

will

not

allow

any unexpected out-of-bounds string

errors.

The handler RPGHDLR is automatically called. It handles the except

indicates that processing should resumesmachinetheinstrucnextion fol-

lowing

the

error.

Note

that

the

next

machine

instruction

may

not b

beginning

of

the

next

RPG operation.

3. Generate an out-of-bounds array error.

Again,	RPGHDLR is	automatically		called.	However, this time it cannot
the	exception,	and	so it percolates		it to the next exception ha
with	the procedure,		namely,	the *PSSR	error subroutine.

The *PSSR cancels the procedure.

4. Unregister the condition handler RPGHDLR via a call to CEEHDLU.

5. Return

As with the RPGHDLR procedure, SHOWERR writes to QSYSPRT to show what occurring as it is processed.

Chapter 12. Handling Exceptions241