pass

[Former Member]

what is the exact difference between pass by value and pass by reference particularly regaring subroutines,methods,function modules what will we do

[Former Member]

hi,

For pass-by-value u will directly pass the value and for Pass-by-reference u need to pass a reference variable for that particular variable.

[sreeramkumar_madisetty]

Hi

In Pass-By-Value : Values of actual parameters will be passed to formal parameters.

Pass-By-Reference : Copy of values of actual parameters will be passed to formal parameters.

Regards,

Sree

[graghavendra_sharma]

if you pass the parameters (formal paramters) by value, whatever the changes done to them inside the method or subroutine will not reflect back. but if you pass by reference the changes done inside method or subroutine will reflect back.

REPORT z_grs_pass_by_value .

DATA: i1 TYPE i, i2 TYPE i, i3 type i.

i1 = 10.

i2 = 20.

i3 = 30.

WRITE: / 'Before calling Subrouting'.

WRITE: / i1, i2, i3.

PERFORM pass USING i1 i2 CHANGING i3.

WRITE: / 'After calling Subrouting'.

WRITE: / i1, i2, i3.

&----

---

*& Form pass

&----

---

• text

----

---

• -->P_I1 text

• -->P_I2 text

----

---

FORM pass USING p_i1

value(p_i2)

p_i3.

p_i1 = 11.

p_i2 = 12.

p_i3 = 13.

WRITE: / 'Inside Subrouting'.

WRITE: / p_i1, p_i2, p_i3.

ENDFORM. " pass

OUTPUT:

-

---

Before calling Subrouting

10 20 30

Inside Subrouting

11 12 13

After calling Subrouting

11 20 13

Message was edited by:

raghav sharma