I am sorry for the previous empty message, I pressed the wrong button ...
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James Lin wrote:
> C++ does not allow anonymous objects to be passed where non-const references
> are expected. Specifically, non-const references must be lvalues.
>
> http://groups.google.com/group/comp.lang.c++/browse_thread/thread/814a071947c5b675/be95a615245cdbdf?#be95a615245cdbdf
Well, I hope I see what you mean. I was not aware of this. After I corrected
the definition of bar and added const:
int bar (const gslot & gs)
The code compiled without problems.
Thank you very much, James!
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