Using gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5), I have a C++ class CFoo that doesn't define an operator[] member function and has no base classes. But use of [] is allowed by the compiler, like this: CFoo foo; CFoo test; test = foo[0]; foo[0] = 0; Both assignment statements seem illegal to me but cause no errors. I cannot post the class itself because it contains sensitive information. Can anyone explain what's going on here? Specifically, is this a compiler bug, or are implicit operator[] member functions sometimes generated by the compiler and under what rules? Thanks for your attention. John Boncek -- View this message in context: http://gcc.1065356.n5.nabble.com/implicit-operator-member-functions-tp906236.html Sent from the gcc - Help mailing list archive at Nabble.com.