CHANGING PARAMETER S

[devrajsingh]

HI FRDS

CAN ANY ONE HELP ME ABT CHANGING PARAMETER IN ANY Subroutines AND IN FM.

ANY EXMPLE

THANKS AND REGARDS

DEV

Message was edited by:

dev raj

[Former Member]

hi Dev,

Refer to this example

DATA: a1 TYPE string, 
      a2 TYPE string, 
      a3 TYPE string, 
      a4 TYPE string. 

PERFORM test USING a1 a2 a3 a4. 
PERFORM test CHANGING a1 a2 a3 a4. 
PERFORM test USING a1 CHANGING a2 a3 a4. 
PERFORM test USING a1 a2 CHANGING a3 a4. 
PERFORM test USING a1 a2 a3 CHANGING a4. 

... 

FORM test USING p1 TYPE string 
                p2 TYPE string 
          CHANGING value(p3) TYPE string 
                   value(p4) TYPE string. 
  ... 
ENDFORM. 

[Former Member]

REPORT demo_mod_tech_example_2 .

DATA: num TYPE i VALUE 5,

fac TYPE i VALUE 0.

PERFORM fact USING num CHANGING fac.

WRITE: / 'Factorial of', num, 'is', fac. "#EC NOTEXT

FORM fact

USING value(f_num) TYPE i

CHANGING f_fact TYPE i.

f_fact = 1.

WHILE f_num GE 1.

f_fact = f_fact * f_num.

f_num = f_num - 1.

ENDWHILE.

ENDFORM.

Regards,

Amey

[devrajsingh]

hi Amey thanks a lot for solution

but from dis example i got that using parameter is behaving a pass by value

and changing is as pass by reference

[Former Member]

check this program

data: f1 value 'A',

f2 value 'B',

f3 value 'C',

f4 value 'D',

f5 value 'E',

f6 value 'F'.

perform s1 using f1 f2

changing f3 f4.

perform s2 using f1 f2 f3 f4

changing f5 f6.

perform s3 using f1 f2 f3.

form s1 using p1 value(p2)

changing p3 value(p4).

write: / p1, p2, p3, p4.

endform.

form s2 using p1 value(p2) value(p3) p4

changing value(p5) p6.

write: / p1, p2, p3, p4, p5, p6.

endform.

form s3 using value(p1)

changing p2 value(p3).

write: / p1, p2, p3.

endform.

[Former Member]

Hi,

Check the following link:

http://www.sapbrain.com

Regards,

Bhaskar