Hi Giovanni, Am 23.07.19 um 18:57 schrieb Giovanni Mascellani: > Hi, > > the problem here is that operator== is called on an instance of > std::map<>::iterator. The intention is probably to compare two iterators > for inequality. But calling the operator overloading function is not the > right thing, because the implementation of std::map<>::iterator might > use the default iterator, and not overload it. Probably GCC 8 used an > overloaded operator, but GCC 9 reverted to the default one. User code > should not call the function "operator==", but use the "==" operator and > let the compiler do its work. > > I believe that the bug should be fixed by changing > > bool tolua_ret = (bool) self->operator==(*value); > > to > > bool tolua_ret = (bool) ((*self)==(*value); > > The problem is that that line of code is automatically generated by the > "tolua" tool. I suppose that tolua should be fixed to generate correct > code. I will look into that later, if I can. > > Greetings from Curitiba!
Thanks for your analysis. I will prepare a patch after the day trip, as soon as time permits. Cheers, Markus
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