My library problem

[relinquished]

hello to you in the forum, I found myself in a somewhat complex problem, in practice I wrote two libraries in the same functions, but that difference that one uses a uses spi spi device and software, the problem arises now because I wrote a third library that uses these functions written in the first two, and in practice based on the type of spi used the third library should use the first or the second library, I hope I explained well enough.

[filip]

Hi,

I believe you have been answered on the other topic regarding the same issue.

Regards,
Filip.

[relinquished]

I'm sorry , could you indicate where ??

[aCkO]

The solution to your problem is to use function pointer in your third library. That way you can choose which function will be called from the first two libraries.

Example:

Code: Select all

typedef Tfun as sub procedure (dim b as byte)

sub procedure fun1(dim b as byte)    ' function from the first library
   ...
end sub

sub procedure fun2(dim b as byte)    ' function from the second library
   ...
end sub

dim MyFun as ^Tfun
const ver = 1

main:
   if ver = 1 then
      MyFun = @fun1
   else
      MyFun = @fun2
   end if

   MyFun(0x01)
end.

Regards