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dgodfrey206/using-bug.cpp

Last active August 29, 2015 14:19
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GCC bug with using-declaration
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using-bug.cpp
struct Base {
Base(int) {}
};
struct D1 : virtual Base {
using Base::Base;
};
int main() {
static_assert(std::is_constructible<D1, int>::value, ""); // FAILS
}
@dgodfrey206
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There seems to be a bug in gcc where a using-declaration in a class D1 inheriting the constructors of a virtual base class Base implicitly odr-uses Base's default constructor. This shouldn't be the case unless a most derived class calls the constructor of Base, in which case D1 then calls Base's default-constructor.

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