On 22/01/16 21:15 +, Jonathan Wakely wrote:
This is a regression, caused by the front end starting to diagnose the
invalid library instantiations more eagerly. The fix seems simple and
safe, so I plan to backport it to the branches too.
Committed to the branches too.
The example in the PR is a sneaky little problem. When is
included the following overload is declared:
template
_Expr
operator<<(const _Tp& __t, const valarray<_Tp>& __v);
This is a candidate function for any "a << b" expression with
namespace std as an associated namespace. In order to do over
