gcc/libstdc++-v3
Jonathan Wakely 81a8d137c2 libstdc++: Add remaining C++20 changes to iterator adaptors
This adds the missing parts of P0896R4 to reverse_iterator and
move_iterator, so that they meet the C++20 requirements. This should be
the last piece of P0896R4, meaning ranges support is now complete.

The PR 94354 bug with reverse_iterator's comparisons is fixed for C++20
only, but that change should be extended to C++11, C++14 and C++17 modes
in stage 1.

	* include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
	(reverse_iterator::iterator_category): Define for C++20.
	(reverse_iterator): Define comparison operators correctly for C++20.
	(__normal_iterator): Add constraints to comparison operators for C++20.
	(move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
	overload for input iterators.
	(move_iterator): Add constraints to comparison operators for C++20.
	Define operator<=> for C++20.
	* testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
	* testsuite/24_iterators/move_iterator/move_only.cc: New test.
	* testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
	* testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
2020-03-27 23:26:03 +00:00
..
config x32: Update baseline_symbols.txt 2020-03-01 06:13:28 -08:00
doc
include libstdc++: Add remaining C++20 changes to iterator adaptors 2020-03-27 23:26:03 +00:00
libsupc++
po
python
scripts
src libstdc++: Handle type-changing path concatenations (PR 94063) 2020-03-09 23:22:57 +00:00
testsuite libstdc++: Add remaining C++20 changes to iterator adaptors 2020-03-27 23:26:03 +00:00
acinclude.m4
aclocal.m4
ChangeLog libstdc++: Add remaining C++20 changes to iterator adaptors 2020-03-27 23:26:03 +00:00
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config.h.in
configure
configure.ac
configure.host
crossconfig.m4
fragment.am
linkage.m4
Makefile.am
Makefile.in
README

file: libstdc++-v3/README

New users may wish to point their web browsers to the file
index.html in the 'doc/html' subdirectory.  It contains brief
building instructions and notes on how to configure the library in
interesting ways.