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24fe8c8e33
gcc/libstdc++-v3
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Jonathan Wakely 24fe8c8e33 libstdc++: Fix std::to_address for debug iterators (PR 93960) 
It should be valid to use std::to_address on a past-the-end iterator,
but the debug mode iterators do a check for dereferenceable in their
operator->(). That check is generally useful, so rather than remove it
this changes std::__to_address to identify a debug mode iterator and
use base().operator->() to skip the check.

	PR libstdc++/93960
	* include/bits/ptr_traits.h (__to_address): Add special case for debug
	iterators, to avoid dereferenceable check.
	* testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
	* testsuite/20_util/to_address/debug.cc: New test.
2020-04-03 10:42:20 +01:00
..
config x32: Update baseline_symbols.txt 2020-03-01 06:13:28 -08:00
doc libstdc++: Move "free books" list from fsf.org to gnu.org 2020-04-01 22:45:35 +02:00
include libstdc++: Fix std::to_address for debug iterators (PR 93960) 2020-04-03 10:42:20 +01:00
libsupc++ libstdc++: Remove std::type_info::operator!= for C++20 2020-02-20 11:30:19 +00:00
po Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +00:00
python libstdc++: Fix regression in libstdc++-prettyprinters/cxx20.cc 2020-02-17 13:20:57 +00:00
scripts Update copyright years. 2020-01-01 12:51:42 +01:00
src libstdc++: Handle type-changing path concatenations (PR 94063) 2020-03-09 23:22:57 +00:00
testsuite libstdc++: Fix std::to_address for debug iterators (PR 93960) 2020-04-03 10:42:20 +01:00
acinclude.m4 libstdc++: Replace glibc-specific check for clock_gettime (PR 93325) 2020-01-28 13:24:09 +00:00
aclocal.m4 Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +00:00
ChangeLog libstdc++: Fix std::to_address for debug iterators (PR 93960) 2020-04-03 10:42:20 +01:00
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ChangeLog-2019 libstdc++: Fix whitespace in ChangeLog-2019 2020-01-09 21:31:35 +00:00
config.h.in libstdc++: Add full steady_clock support to shared_timed_mutex 2019-12-02 16:23:10 +00:00
configure Use a non-empty test program to test ability to link. 2020-02-12 13:22:07 -08:00
configure.ac libstdc++: Add full steady_clock support to shared_timed_mutex 2019-12-02 16:23:10 +00:00
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 reject macros in math decl check 2020-01-23 16:44:54 -03:00
fragment.am
linkage.m4
Makefile.am Update copyright years. 2020-01-01 12:51:42 +01:00
Makefile.in Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +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.