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I am sorry for the previous empty message, I pressed the wrong button ... ----------------------------------------------------------------------- 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! See all the ways you can stay connected to friends and family |