On Jun 30, 9:14pm, aneuryzma <patrick.divia...@gmail.com> wrote:
> On Jun 30, 1:27am, Greg Herlihy <gre...@mac.com> wrote:
>
>
>
> > On Jun 29, 2:52pm, rpbg...@yahoo.com (Roland Pibinger) wrote:
>
> > > On Sun, 29 Jun 2008 14:26:57 -0700 (PDT), aneuryzma wrote:
> > > >I'm merging an OpenCV app with an Ogre3d app. I'm on a mac, I'm using
> > > >xCode.
>
> > > >When I add #include "openCVApp.h"
>
> > > >I got the following error:
>
> > > >"Applications/openCV/OpenCV.framework/Headers/cxtypes.h:549: error:
> > > >ISO C++ forbids declaration of 'uchar' with no type
>
> > > include the header that defines 'uchar' before openCVApp.h.
>
> > Or, if no such header can be found, define the "uchar" typedef
> > yourself - before including openCVApp.h:
>
> > typedef unsigned char uchar;
> > // ...
> > #include "openCVApp.h"
>
> > Even if the header with the "uchar" typedef is eventually found and
> > included - having an extra "uchar" typedef in the same translation
> > unit should not be a problem. A C++ program is free to define the same
> > typedef, multiple times within a single scope - provided that the
> > typedef is defined the same way each time.
>
> > Greg
>
> Hi,
>
> well I tried to add typedef unsigned char uchar; before but I still
> have the same error.
>
> The thing is that "typedef unsigned char uchar;" *IS* in a header file
> in which i got the error. I don't understand why the compiler
> complains that it is not defined.
>
> This is the header:
>
> #ifndef _CXCORE_TYPES_H_
> #define _CXCORE_TYPES_H_
>
> ...
>
> #ifndef HAVE_IPL
> typedef unsigned char uchar;
> typedef unsigned short ushort;
> #endif
>
> ...
>
> union
> {
> uchar* ptr; <-- error
> short* s;
> int* i;
> float* fl;
> double* db;
> }
>
> I also tried to remove the if condition before typedef but still have
> the same error

I just want to remark that everything works perfectly if I build only
the openCV application. I think there is some kind of conflict on the
uchar variable.