[Bug libstdc++/51013] complex::{imag,real}() should maintain lvalue-returning extension in C++11
jason at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Nov 8 15:20:00 GMT 2011
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51013
--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> 2011-11-08 15:18:51 UTC ---
I meant that with the current libstdc++ complex, this is valid:
constexpr float f = complex<float>(2.4).real();
but adding a non-constexpr overload would cause that one to be selected for the
call above, making the declaration invalid.
Once we have ref-qualifiers, it should be OK to add the non-const overload with
an lvalue ref-qualifier, though.
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