[Bug c++/65575] [c++-concepts] Parse error for requires clause on functions that return a reference type

[andrew.n.sutton at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65575

--- Comment #6 from Andrew Sutton <andrew.n.sutton at gmail dot com> ---
The requires-clause comes before the = default (the = xxx) is considered part
of the function definition. So:

  void f() requires true = default;


As a side note, the production following the requires-clause is a
logical-or-expression, so the '=' would not be interpreted as part of the
constraint.

But I don't think there are test cases for that.

If you find a problem, please open a new issue.