[Mingw-users] C++Builder dll-struct-problem

[Dennis J. <ya...@un...>]

Hi!

I have a problem regarding mingw-dll's. I have created a dll with mingw 
on Win2k and a corresponding lib with Borland's implib tool. I am using 
the lib in a C++Builder project, which is a dll itself (actually it is a 
wrapper to the mingw-dll).

Basically everything works fine, except that I have encountered a 
problem with a dynamically allocated struct-array. When iterating 
through the array (xxx[i].struct) in the Borland-compiled code the 
pointer to the struct is off by a few byte. It seems as if Borland 
assumes the structs are shorter than they are and so after every 
iteration the struct points to a few bytes of it's predecessor, making 
data access to any other struct than the first one impossible.

I have started research on alignment and compiler flags and I can say 
that neither -fnative-struct nor -fpcc-struct-return worked. Playing 
with the C++Builder's alignment options didn't either! :-(

Has anybody seen this before, or does anyone have any idea what else to try?

Thanks in advance!

Dennis