On 10/03/20 11:40 +0000, Jonathan Wakely wrote:
>G++ fails to diagnose this non-dependent expression, but Clang doesn't
>like it.
>
>	PR c++/94117
>	* include/std/ranges (ranges::transform_view::_Iterator::iter_move):
>	Change expression in noexcept-specifier to match function body.
>


This patch goes further and removes the __iter_move helper completely,
and the __iter_swap one, in transform_view.

It also does the same in split_view, and fixes a bug where the
noexcept-specifier was always false.

I've also added new _M_i_current() accessors (overloaded for const and
non-const) to return _M_i.__current(). Using this instead of
_M_i._M_current fixes a bug in inner-iterator::operator*() (which is
also present in the working draft).

Tested powerpc64le-linux, committed to master.