IBM AS/400 manual Passing Parameters using the, Call, Running a Program Using the CL CALL Command

Running a Program Using the CL CALL Command

Passing Parameters using the

CL

CALL

Command

You use the PARM option

of

the CL

CALL

command

to

pass

parameters

to

th

program

when

you run

it.

CALL PGM(program-name)

PARM(parameter-1 parameter-2 ... parameter-n)

You

can

also

type

the

parameters

without

specifying

any

keywords:

CALL library/program-name (parameter-1 parameter-2 ... param￿eter-n)

Each

parameter

value

can

be

specified

as

a

CL

program

variable

or

as

following:

¹ A character string constant

¹ A numeric constant

¹A logical constant

If you	are	passing	parameters	to a	program where		an	ILE	RPG procedu
program	entry	procedure, then that program must				have	one	and		only	one
PLIST specified. The			parameters	that follow (in		the	PARM	statements)			sho
respond	on a	one-to-one basis to those			passed	through the			CALL	command.

Refer to the CALL Command inCL Referencethe(Abridged)or to the section on

"Passing Parameters between Programs"CL inProgrammingthe manual for a full description of how parameters are handled.

For

example,

the

program

EMPRPT2 requires

the

correct

password to

be

p

to

it

when it first started; otherwise it will not

run.

Figure 47

on

p

source.

1. To

create

the

program,

type:

CRTBNDRPG PGM(MYLIB/EMPRPT2)

2. To

run the

program,

type:

CALL MYLIB/EMPRPT2 (HELLO)

When

the

CALL

command

is issued, the contents of

the

parameter

pass

the

command is stored and the program parameter

PSWORD points

to

its

location. The

program

then

checks to

see

if

the

contents

of

PSWORD

the

value

stored

in

the'HELLOprogram,'). In( this case,

the

two

values

are

the

same,

and

so the program continues to

run.

104 ILE RPG for AS/400 Programmer's Guide