topic Re: how to write macro. in Application Development and Automation Discussions

how to write macro.

Former Member — Mon, 03 Sep 2007 06:58:03 GMT

hi all,

i want to write one macro in my function module for selecting data from one table and give back to the function module.

how to code that and how to call in fm. i dont no anything about macro.

please help me.

thanks in advance.

vinod

Re: how to write macro.

Former Member — Mon, 03 Sep 2007 07:00:06 GMT

Macro Add-Range Definition

define add-range.

&3-sign = &1.

&3-option = &2.

&3-low = &4.

&3-high = &5.

append &3.

end-of-definition.

Macro Implementation

add-range 'I' 'EQ' w_allc_n w_allc ' '.

See the documentation below.

DEFINE

Basic form

DEFINE macro.

Effect

Defines a section of source code (macro) that you can address using the name macro. Source code saved as a DEFINE macro may only consist of complete ABAP statements

All macro use is expanded fully in translation. Macros are a text substitute for the translation phase - not a modularization technique for runtime use.

You conclude a macro with the END-OF-DEFINITION statement.

When you define a macro, you can use placeholders (&n, where n = 1, 2, ..., 9). When the macro is expanded, &n is replaced with the n-th current parameter.

Example

Suppose you define a macro "INCREMENT", which you then use in your program.

DEFINE INCREMENT.

ADD 1 TO &1.

END-OF-DEFINITION.

DATA: NUMBER TYPE I VALUE 1.

...

INCREMENT NUMBER.

Notes

As a rule, you should use subroutines (FORM, FUNCTION) instead of macros. This is because subroutines - unlike macros - are supported by all of the ABAP Workbench tools (debugging, runtime analysis, runtime error handling, ...).

You cannot define a macro within a macro using the DEFINE statement.

You cannot use an ABAP keyword as a macro name.

The validity of a macro definition is determined by its position in the source code. You can use a given macro in any line of code following its definition. There is no distinction between global and local macros. For example, the fact that a macro is defined within a subroutine has no effect on its validity.

If you redefine a macro, that is, assign a new meaning to an existing name, the new meaning takes effect from the position in the program where the macro was redefined.

Regards

Pratyusha

Message was edited by:

Pratyu Usha

Re: how to write macro.

former_member194669 — Mon, 03 Sep 2007 07:01:46 GMT

Hi,

Check this


define update_flg.
  move &1 to &2-updkz.
  modify &3 from &2 index &4.
end-of-definition.                       " Update_flg

update_flg c_x wa_ysccpvapitem i_ysccpvapitem v_tabix.

a®

Re: how to write macro.

Former Member — Mon, 03 Sep 2007 07:06:14 GMT

Macros:

If you want to reuse the same set of statements more than once in a program, you can

include them in a macro. For example, this can be useful for long calculations or complex

WRITE statements. You can only use a macro within the program in which it is defined, and it

can only be called in lines of the program following its definition.

The following statement block defines a macro <macro>:

DEFINE <macro>.

END-OF-DEFINITION.

see this sample code

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.

*-- End of Program

regards,

srinivas

Re: how to write macro.

Former Member — Mon, 03 Sep 2007 07:10:01 GMT

Hi,

See below code

Macro in ABAP

Macro in ABAP

Submitted by : SAP Basis, ABAP Programming and Other IMG Stuff
http://www.sap-img.com

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.

*-- End of Program

reward if helpful.