Macros

[Former Member]

Dear All,

What are the precautions to be taken while writing a new macro in TRMAC table?

Please mention a scenario where the usage of macro is apt.

Regards,

Prosenjit.

[Former Member]

Hi,

macros are like #include in c programs.

These are local to program.

http://help.sap.com/saphelp_nw70/helpdata/en/9f/db972835c111d1829f0000e829fbfe/content.htm

see this link .

it will useful for you.

REPORT ZMACRO.

DATA: RESULT TYPE I,

N1 TYPE I VALUE 5,

N2 TYPE I VALUE 6.

DEFINE OPERATION.

RESULT = &1 &2 &3.

OUTPUT &1 &2 &3 RESULT.

END-OF-DEFINITION.

DEFINE OUTPUT.

WRITE: / 'The result of &1 &2 &3 is', &4.

END-OF-DEFINITION.

OPERATION 4 + 3.

OPERATION 2 ** 7.

OPERATION N2 - N1.

*reward points.

[Former Member]

Hi,

macros are like #include in c programs.

Macros can only be used in the program the are defined in and only after the

definition.

Macros can take max 9 parameters.

Macros are expanded at compilation / generation.

In general:

A MACRO is more or less an abbreviation for some lines of code that are used

more than once or twice.

A FORM is a local subroutine (which can be called external).

A FUNCTION is (more or less) a subroutine that is called external.

Since debugging a MACRO is not really possible, prevent the use of them

(I've never used them, but seen them in action).

If the subroutine is used only local (called internal) use a FORM.

If the subroutine is called external (used by more than one program) use a

FUNCTION.

Success and keep in mind that the screw up from a macro can cause a lot of

work (more than the creation of a form),

http://help.sap.com/saphelp_nw70/helpdata/en/9f/db972835c111d1829f0000e829fbfe/content.htm

see this link .

it will useful for you.

REPORT ZMACRO.

DATA: RESULT TYPE I,

N1 TYPE I VALUE 5,

N2 TYPE I VALUE 6.

DEFINE OPERATION.

RESULT = &1 &2 &3.

OUTPUT &1 &2 &3 RESULT.

END-OF-DEFINITION.

DEFINE OUTPUT.

WRITE: / 'The result of &1 &2 &3 is', &4.

END-OF-DEFINITION.

OPERATION 4 + 3.

OPERATION 2 ** 7.

OPERATION N2 - N1.

*reward points.

Edited by: jeevitha on May 8, 2008 10:29 AM

[Former Member]

Hi,

Check the theard

https://forums.sdn.sap.com/click.jspa?searchID=11558868&messageID=4767053

Regards

Kiran Sure