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Jonathan Wakely 9aeb3bef2c Apply C++20 changes to various iterator types 
This ensures that __normal_iterator<T*, C> satisfies the
contiguous_iterator concept, by defining the iterator_concept member
type.

Also update vector<bool>'s iterators, reverse_iterator,
istreambuf_iterator and ostreambuf_iterator to meet the C++20
requirements.

	PR libstdc++/92272
	* include/bits/stl_bvector.h (_Bit_iterator::pointer)
	(_Bit_const_iterator::pointer): Define as void for C++20.
	* include/bits/stl_iterator.h (reverse_iterator::operator->()): Add
	constraints for C++20.
	(__normal_iterator::iterator_concept): Define for C++20.
	* include/bits/streambuf_iterator.h (istreambuf_iterator::pointer):
	Define as void for C++20.
	(ostreambuf_iterator::difference_type): Define as ptrdiff_t for C++20.
	(ostreambuf_iterator::ostreambuf_iterator()): Add default constructor
	for C++20.
	* testsuite/23_containers/vector/bool/iterator_c++20.cc: New test.
	* testsuite/24_iterators/bidirectional/concept.cc: New test.
	* testsuite/24_iterators/bidirectional/tag.cc: New test.
	* testsuite/24_iterators/contiguous/concept.cc: New test.
	* testsuite/24_iterators/contiguous/tag.cc: New test.
	* testsuite/24_iterators/forward/concept.cc: New test.
	* testsuite/24_iterators/forward/tag.cc: New test.
	* testsuite/24_iterators/input/concept.cc: New test.
	* testsuite/24_iterators/input/tag.cc: New test.
	* testsuite/24_iterators/istreambuf_iterator/requirements/typedefs.cc:
	New test.
	* testsuite/24_iterators/ostreambuf_iterator/requirements/typedefs.cc:
	New test.
	* testsuite/24_iterators/output/concept.cc: New test.
	* testsuite/24_iterators/output/tag.cc: New test.
	* testsuite/24_iterators/random_access/concept.cc: New test.
	* testsuite/24_iterators/random_access/tag.cc: New test.
	* testsuite/24_iterators/range_operations/advance_debug_neg.cc: New
	test.
	* testsuite/24_iterators/random_access_iterator/26020.cc: Move to ...
	* testsuite/24_iterators/operations/26020.cc: ... here.
	* testsuite/24_iterators/random_access_iterator/
	string_vector_iterators.cc: Move to ...
	* testsuite/24_iterators/random_access/string_vector_iterators.cc: ...
	here.

From-SVN: r277629
2019-10-30 15:48:11 +00:00
..
config baseline_symbols.txt: Update. 2019-10-26 20:12:20 +00:00
doc codecvt.xml: Switch pubs.opengroup.org to https. 2019-10-26 21:57:56 +00:00
include Apply C++20 changes to various iterator types 2019-10-30 15:48:11 +00:00
libsupc++ PR libstdc++/92143 adjust for OS X aligned_alloc behaviour 2019-10-18 12:27:31 +01:00
po PR libstdc++/89466 avoid slow xsltproc command in configure 2019-02-27 11:25:44 +00:00
python Fix Xmethod for shared_ptr::use_count() 2019-09-11 12:38:23 +01:00
scripts Implement <concepts> header for C++20 2019-10-11 16:53:52 +01:00
src [_GLIBCXX_DEBUG] Clarify constness and state <unknown> entries. 2019-10-16 05:05:27 +00:00
testsuite Apply C++20 changes to various iterator types 2019-10-30 15:48:11 +00:00
acinclude.m4 [ARM/FDPIC v6 24/24] [ARM] FDPIC: Handle arm*-*-uclinuxfdpiceabi in libstdc++ configure scripts 2019-09-10 10:13:20 +02:00
aclocal.m4 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
ChangeLog Apply C++20 changes to various iterator types 2019-10-30 15:48:11 +00:00
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ChangeLog-2017
ChangeLog-2018 Update copyright years. 2019-01-01 13:31:55 +01:00
config.h.in Build filesystem library with large file support 2019-10-04 16:08:23 +01:00
configure Build filesystem library with large file support 2019-10-04 16:08:23 +01:00
configure.ac Build filesystem library with large file support 2019-10-04 16:08:23 +01:00
configure.host [ARM/FDPIC v6 24/24] [ARM] FDPIC: Handle arm*-*-uclinuxfdpiceabi in libstdc++ configure scripts 2019-09-10 10:13:20 +02:00
crossconfig.m4 Remove Cell Broadband Engine SPU targets 2019-09-03 15:08:28 +00:00
fragment.am PR libstdc++/86450 use -Wabi=2 and simplify -Werror use 2018-07-17 14:18:47 +01:00
linkage.m4
Makefile.am Update copyright years. 2019-01-01 13:31:55 +01:00
Makefile.in PR libstdc++/89466 avoid slow xsltproc command in configure 2019-02-27 11:25:44 +00:00
README

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.