Stream ODR types

Richard Biener rguenther@suse.de
Fri Sep 12 07:42:00 GMT 2014


On Thu, 11 Sep 2014, Jason Merrill wrote:

> On 09/11/2014 03:06 AM, Jan Hubicka wrote:
> > http://kam.mff.cuni.cz/~hubicka/odr-warnings-firefox.txt
> 
> > /aux/hubicka/firefox4/content/media/fmp4/ffmpeg/libav53/include/libavcodec/avcodec.h:997:0:
> > note: the first difference of corresponding definitions is field ‘data’
> >      uint8_t *data[AV_NUM_DATA_POINTERS];
> >  ^
> > /aux/hubicka/firefox4/content/media/fmp4/ffmpeg/libav54/include/libavcodec/avcodec.h:997:0:
> > note: a field of same name but different type is defined in another
> > translation unit
> >      uint8_t *data[AV_NUM_DATA_POINTERS];
> >  ^
> > /usr/include/stdint.h:49:24: note: type ‘uint8_t’ should match type
> > ‘uint8_t’
> >  typedef unsigned char  uint8_t;
> >                         ^
> > /usr/include/stdint.h:49:24: note: the incompatible type is defined here
> 
> Hmm, how can uint8_t be incompatible with itself?

One reason I was suggesting of only handling record types and
arrays of records.  For fundamental types we can very easily verify
compatibility.

Richard.


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