https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59937
--- Comment #4 from Javier V. Gómez <jota.uve at hotmail dot com> --- (In reply to Jonathan Wakely from comment #3) > (In reply to Javier V. Gómez from comment #2) > > I found another case that worked in G++ 4.8.3 but fails in 4.9: > > This example is complete nonsense. Why is it split across three files? Why > doesn't main.cpp include anything? Why is everything private? Why is 'a' > undeclared in B::foo()? Why does the diagnostic talk about 'ndims' which > isn't declared anywhere? > > It's useless as a test or an example of the error. I tried to simplify as much as possible the issue, since I detected the error in a big piece of code. I didn't pretend to create a compilable example. ndims is what I called n (copy and paste...). The important point of my example is that constexpr int n = a.getN(); fails when A::getN() just returns a template parameter value previously set by a constexpr anywhere else.
