[Bug c++/69736] [4.9/5/6 Regression] "error: too few arguments to function" in c++14 but not c++11

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69736

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
In some contexts yes, but 5.1.1 [expr.prim.general] p6 says:

  A parenthesized expression is a primary expression whose type and value are
  identical to those of the enclosed expression. The presence of parentheses
  does not affect whether the expression is an lvalue. The parenthesized
  expression can be used in exactly the same contexts as those where the
  enclosed expression can be used, and with the same meaning, except as
  otherwise indicated.

I don't see anything indicating otherwise in [conf.func] or [expr.call] or
[dcl.fct.default].