Form to compare two fields ... cast needed?

Question

Hi all gurus,
I'm rebuilding a report that performs a lot of checks by comparing fields of two different structures.
Basically, the check has a structure that is repeated over and over in many check: it looks like this:
IF srm_items-{field1} NE r3_services-{field2}.            
   t_temp-prezzi_errati = icon_red_light.
   t_temp-error_code    = '{errorcode}'.
   IF counter_s = 0.
      PERFORM add_son_in_t_temp USING srm_items e_backend w_obj-posting_date w_obj-changed_at.
   ELSE.
      PERFORM add_additional_error_temp USING srm_items 0.
   ENDIF.
   counter_s = counter_s + 1.
   fl_errore_s = 'X'.
I was thinking to create a form, say 'check_son', that takes as USING parameter , and . My doubt is about types ad casts; in a check, could be a text string, in another a number, in another again a guid, and so on. Always simple field (no structures or complex field by now), but for what that concerns my FORM:
FORM check_son USING compare1
                                      compare2
                                      errorcode.
how should I declare the form in order to have the check working? I mean, I'd like that compare1 and compare2 get the same TYPE of the parameter I pass.. Is there a way? Or implicitly the params are converted into text (this should not work for me)?
Thanks in advance

Answer 1

>
Matteo Montalto wrote:
> I don't know macros
Hi, Matteo
Test the following Sample Code it will help you to understand the working of Macros.
DEFINE check_son.
  if &1 NE &2. " If Field1 Not Equal Field2
    &3 = 'NE'. " In This Variable it will Return Error Code NE for Not Equal and EQ for Equal
  else.
    &3 = 'EQ'.
  endif.
END-OF-DEFINITION.
DEFINE write_message.
  if &1 = 'EQ'.
    write: 'Two Numbers are Equal', /.
  else.
    write: 'Two Numbers are Not Equal', /.
  endif.
END-OF-DEFINITION.
DATA: f1 TYPE i,
      f2 TYPE i,
      error_code(2).
f1 = 10. f2 = 15.
check_son f1 f2 error_code.
write_message error_code.
f1 = 10. f2 = 10.
check_son f1 f2 error_code.
write_message error_code.
Please Reply if any Confusion,
Best Regards,
Faisal