topic Re: Incompatible formal parameter type in Application Development and Automation Discussions

Incompatible formal parameter type

former_member367551 — Mon, 08 Mar 2010 04:13:29 GMT

Dear forumers,

When the following code is executed:-

perform clear_component_value using    c_ryyrkeg_wwsub
                                       <ls_movement>
                                      changing <lv_ryyrkeg_wwsub>.

I have the following syntax error:-

In PERFORM or CALL FUNCTION "CLEAR_COMPONENT_VALUE", the actual parameter "C_RYYRKEG_WWSUB" is incompatible with the formal parameter "PV_COMP_NAME".

Further codes:-

form CLEAR_COMPONENT_VALUE  using    pv_comp_name type char255 " How can I type this parameter properly? - tried type STRING too
                                     pv_fs_struct type any
                            changing pv_fs_var    type any.

  ASSIGN COMPONENT pv_comp_name OF STRUCTURE pv_fs_struct TO pv_fs_var.
  IF sy-subrc = 0.
    CLEAR pv_fs_var.
  ENDIF.

  UNASSIGN pv_fs_var.

endform.                    " CLEAR_COMPONENT_VALUE

CONSTANTS:
  c_ryyrkeg_wwsub(13)  TYPE c VALUE 'RYYRKEG_WWSUB',
  c_racct(5)           TYPE c VALUE 'RACCT',
  c_ryymac(6)          TYPE c VALUE 'RYYMAC',
  c_rzzvbund(8)        TYPE c VALUE 'RZZVBUND',
  c_ryypma(6)          TYPE c VALUE 'RYYPMA',
  c_ryyrkeg_wwato(13)  TYPE c VALUE 'RYYRKEG_WWATO',
  c_rbukrs(6)          TYPE c VALUE 'RBUKRS',
  c_rtcur(5)           TYPE c VALUE 'RTCUR',
  c_tsl(3)             TYPE c VALUE 'TSL',
  c_hsl(3)             TYPE c VALUE 'HSL',
  c_ryear(5)           TYPE c VALUE 'RYEAR',
  c_tslvt(5)           TYPE c VALUE 'TSLVT',
  c_hslvt(5)           TYPE c VALUE 'HSLVT',
  c_rldnr(5)           TYPE c VALUE 'RLDNR'.

How may I resolve this error, seeing that the PV_COMP_NAME should actually be constant variables of type c? Please help me out here. Appreciate any inputs at all. Thanks.

Re: Incompatible formal parameter type

SuhaSaha — Mon, 08 Mar 2010 04:25:22 GMT

Hello,

This is because the lenght of the actual & the formal parameters are different.

I understand from your code that you are trying to assign the field of the dynamic structure to some field-symbol & the constants declared are nothing but the fields of the structure try defining all of them as TYPE FIELDNAME & use the same in your FORM declaration as well.

form CLEAR_COMPONENT_VALUE  using    pv_comp_name type fieldname
                                     pv_fs_struct type any
                            changing pv_fs_var    type any

Hope this helps.

BR,

Suhas

Re: Incompatible formal parameter type

Former Member — Mon, 08 Mar 2010 04:31:21 GMT

Hi,

1.form CLEAR_COMPONENT_VALUE using pv_comp_name like c_ryyrkeg_wwsub

pv_fs_struct type any

changing pv_fs_var type any.

But the value can't be chnaged inside the subroutine.

2.Decalre wvl_temp as c_ryyrkeg_wwsub and use that in form

form CLEAR_COMPONENT_VALUE using pv_comp_name like wvl_temp

pv_fs_struct type any

changing pv_fs_var type any.

You can very well modify the values.

Thanks & Regards,

Vamsi.

Re: Incompatible formal parameter type

SuhaSaha — Mon, 08 Mar 2010 04:39:37 GMT

Hello Vamshi,

So you mean you cannot change the values of the formal params which are PASSED BY REFERENCE ? Please enlighten me.

Anyways i donot see where the value of the param pv_comp_name is changed in the sub-routine?

BR,

Suhas

Re: Incompatible formal parameter type

Former Member — Mon, 08 Mar 2010 04:45:18 GMT

Hi Suhas,

If you see my code block.

It will behave in the manner which i have told.

And i mean by "You cannot change the value is an information as it is disadvantage " for my code block.

And your reply resolves, since the variable is not modified inside subroutine.

Thanks & Regards,

Vamsi.

Edited by: Vamsi Krishna on Mar 8, 2010 5:45 AM

Re: Incompatible formal parameter type

SuhaSaha — Mon, 08 Mar 2010 04:55:13 GMT

Then you should rephrase your statement as : "You should not change the values of a USING param".

FYI , even if you do so in Extended Syntax Check you will get a warning message for this.

Suhas

Re: Incompatible formal parameter type

Former Member — Mon, 08 Mar 2010 04:59:28 GMT

Hi,

Sorry for that.

And you are right.

Thanks & Regards,

Vamsi.

Re: Incompatible formal parameter type

Former Member — Mon, 08 Mar 2010 06:12:35 GMT

hi deborah ,

i think make it char13 as it is defined as 13 char long

form CLEAR_COMPONENT_VALUE using pv_comp_name type char13

hope this will help you

thanks

tanmaya

Re: Incompatible formal parameter type

former_member367551 — Wed, 10 Mar 2010 05:46:59 GMT

Hi Suhas,

Type FIELDNAME resolved the issue.

Thanks to everyone for the inputs as well.