Re: [Openexr-devel] Imf::Attribute compiler warning

[Florian Kainz]

Hi Ken,

fixes for both issues have been checked into CVS:

The constructors for Imf::TypedAttribute<T> now explicitly
instantiate the Attribute base class.  The typo in the
comment in IexMacros.h has been corrected.

Florian


Ken McGaugh wrote:
> I'm seeing the following compiler warning under linux with gcc-4.0.2  
> when extra warnings are enabled (-Wextra):
>
>     /usr/local/include/OpenEXR/ImfAttribute.h:256: warning: base  class 
> 'class Imf::Attribute' should be explicitly initialized in the  copy 
> constructor
>
> The code which triggers this is:
>
>     Imath::M44f mat;
>     Imf::Header hdr (720, 486);
>     hdr.insert("mat", Imf::M44fAttribute(mat));
>
> The warning goes away if I use an intermediate Imf::M44fAttribute  object:
>
>     Imath::M44f mat;
>     Imf::M44fAttribute matAttr (mat);
>     Imf::Header hdr (720, 486);
>     hdr.insert("mat", matAttr);
>
> The warning seems benign, but I wanted to check to make sure.  Anybody  
> know for sure?
>
> Also, there is a typo in the commented example for ASSERT in  
> IexMacros.h.  In the example the order of the arguments is listed  
> incorrectly.
>
> Thanks.
> --Ken
>
>
>
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