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Jonathan Wakely b5c433ce11 Improve precondition checks for std::span 
* doc/xml/manual/status_cxx2020.xml: Update status for P0122R7 and
	P1024R3. Remove entry for P0920R2.
	* include/std/span  (__cpp_lib_span): Change value.
	(__extent_storage, __extent_storage<dynamic_extent>): Remove default
	constructor.
	(span): Replace __extent_storage base class with data member.
	(span::_S_subspan_extent): New function.
	(span::empty()): Add nodiscard attribute.
	(span::front, span::back, span::operator[]): Check preconditions.
	(span::first, span::last, span::subspan): Add noexcept. Improve
	precondition checks (LWG 3103).
	(get): Remove redundant condition from static_assert.
	(tuple_element<I, span<T, E>>): Fix static_assert message and simplify.
	(as_writable_bytes): Add inline specifier.
	* include/std/version (__cpp_lib_span): Change value.
	* testsuite/23_containers/span/back_neg.cc: Remove stray semi-colon.
	* testsuite/23_containers/span/front_neg.cc: Likewise.
	* testsuite/23_containers/span/index_op_neg.cc: Likewise.
	* testsuite/23_containers/span/last_neg.cc: Improve test.
	* testsuite/23_containers/span/subspan_neg.cc: Likewise.
	* testsuite/23_containers/span/1.cc: New test.
	* testsuite/23_containers/span/2.cc: New test.
	* testsuite/23_containers/span/back_assert_neg.cc: New test.
	* testsuite/23_containers/span/first_2_assert_neg.cc: New test.
	* testsuite/23_containers/span/first_assert_neg.cc: New test.
	* testsuite/23_containers/span/first_neg.cc: New test.
	* testsuite/23_containers/span/front_assert_neg.cc: New test.
	* testsuite/23_containers/span/index_op_assert_neg.cc: New test.
	* testsuite/23_containers/span/last_2_assert_neg.cc: New test.
	* testsuite/23_containers/span/last_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_2_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_3_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_4_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_5_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_6_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_assert_neg.cc: New test.

From-SVN: r275411
2019-09-05 14:48:33 +01:00
..
config Update Solaris baselines for GCC 10.0 2019-09-02 08:31:07 +00:00
doc Improve precondition checks for std::span 2019-09-05 14:48:33 +01:00
include Improve precondition checks for std::span 2019-09-05 14:48:33 +01:00
libsupc++ PR libstdc++/51333 Define recursive_init_error constructor non-inline 2019-07-29 15:27:19 +01:00
po PR libstdc++/89466 avoid slow xsltproc command in configure 2019-02-27 11:25:44 +00:00
python Have std::vector printer's iterator return bool for vector<bool> 2019-06-19 23:57:06 +01:00
scripts Remove Profile Mode, deprecated since GCC 7.1 2019-05-13 11:50:21 +01:00
src Use __constinit keyword in libstdc++ sources 2019-09-02 12:31:34 +01:00
testsuite Improve precondition checks for std::span 2019-09-05 14:48:33 +01:00
acinclude.m4 PR libstdc++/41861 Add full steady_clock support to condition_variable 2019-09-04 23:43:29 +01:00
aclocal.m4
ChangeLog Improve precondition checks for std::span 2019-09-05 14:48:33 +01:00
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config.h.in PR libstdc++/41861 Add full steady_clock support to condition_variable 2019-09-04 23:43:29 +01:00
configure PR libstdc++/41861 Add full steady_clock support to condition_variable 2019-09-04 23:43:29 +01:00
configure.ac PR libstdc++/41861 Add full steady_clock support to condition_variable 2019-09-04 23:43:29 +01:00
configure.host Remove obsolete Solaris 10 support 2019-05-14 17:17:23 +00:00
crossconfig.m4 Remove Cell Broadband Engine SPU targets 2019-09-03 15:08:28 +00:00
fragment.am
linkage.m4
Makefile.am
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.