Hi Robert,
I've been getting this warning 7 times per compiled file for a little while:
warning C4312: 'type cast' : conversion from 'GLsizeiptrARB' to 'const
GLvoid *' of greater size
It happens on lines like this:
setVertexPointer(array->getDataSize(),array->getDataType(),0,(const
GLvoid *)(vbo->getOffset(array->getBufferIndex())));
The actual lines are in include/osg/state lines 578, 669, 759, 854, 921,
998 and 1163.
Now, from what I can see, GLvoid is gotten from gl.h (in the Platform
SDK) and evaluates to void. GLsizeiptrARB is gotten from the
include/osg/BufferObject header, and evaluates to int.
First of all, it's trying to convert int to const void*, am I reading
that correctly? vbo->getOffset() returns GLsizeiptrARB and it's trying
to cast it to const GLvoid*. Is that OK?
Is there a quick way to remove this warning? I imagine in other cases,
it could be a sign of 64-bit porting problems, but I'm on a 32 bit
platform, so I don't see why the compiler is warning me of this. For
that matter, aren't both int and void* 32 bits on 32 bit platforms? (my
knowledge in this is limited, and I guess they can't be or this warning
wouldn't occur...)
It would be nice to be able to remove this warning. Thanks,
J-S
--
______________________________________________________
Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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