* testsuite/27_io/filesystem/operations/canonical.cc: Remove
directory created by test.
* testsuite/27_io/filesystem/operations/symlink_status.cc: Remove
symlink created by test.
From-SVN: r266535
The pretty printer for std::any fails when the contained value is a
locally-defined type, because the name in the debuginfo has
cv-qualifiers and ptr-declarators in different positions. The unexpected
format confuses the printer. This makes the printer's regex handle
either format.
This isn't a complete fix because looking up the contained type fails
when there are two types with the same name (defined in different local
scopes). This applies to all closure types defined in a given function,
as they all appear as "func()::lambda" in the debuginfo names.
PR libstdc++/87308 (partial)
* python/libstdcxx/v6/printers.py (StdExpAnyPrinter): Adjust regex to
work around PR 88166.
* testsuite/libstdc++-prettyprinters/cxx17.cc: Test std::any
containing a local type.
From-SVN: r266408
PR c++/87386
* parser.c (cp_parser_primary_expression): Use
id_expression.get_location () instead of id_expr_token->location.
Adjust the range from id_expr_token->location to
id_expressio.get_finish ().
(cp_parser_operator_function_id): Pass location of the operator
token down to cp_parser_operator.
(cp_parser_operator): Add start_loc argument, always construct a
location with caret at start_loc and range from start_loc to the
finish of the last token.
gcc/testsuite/
* g++.dg/diagnostic/pr87386.C: New test.
* g++.dg/parse/error17.C: Adjust expected diagnostics.
libstdc++-v3/
* testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust expected
line.
* testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
* testsuite/20_util/uses_allocator/69293_neg.cc: Likewise.
* testsuite/experimental/propagate_const/requirements2.cc: Likewise.
* testsuite/experimental/propagate_const/requirements3.cc: Likewise.
* testsuite/experimental/propagate_const/requirements4.cc: Likewise.
* testsuite/experimental/propagate_const/requirements5.cc: Likewise.
From-SVN: r266359
PR libstdc++/87855
Also implement P0602R4 (variant and optional
should propagate copy/move triviality) for std::optional.
* include/std/optional (_Optional_payload): Change
the main constraints to check constructibility in
addition to assignability.
(operator=): Make constexpr.
(_M_reset): Likewise.
(_M_construct): Likewise.
(operator->): Likewise.
* testsuite/20_util/optional/assignment/8.cc: Adjust.
* testsuite/20_util/optional/assignment/9.cc: New.
From-SVN: r266278
* include/std/string_view (basic_string_view::copy): Use traits to
copy.
* testsuite/21_strings/basic_string_view/operations/copy/char/2.cc:
New test.
* testsuite/21_strings/basic_string_view/operations/copy/wchar_t/2.cc:
New test.
From-SVN: r266269
2018-11-16 Michele Pezzutti <mpezz@tiscali.it>
Edward Smith-Rowland <3dw4rd@verizon.net>
PR libstdc++/83566 - cyl_bessel_j returns wrong result for x>1000
for high orders.
* include/tr1/bessel_function.tcc: Perform no fewer than nu/2 iterations
of the asymptotic series (nu is the Bessel order).
* testsuite/tr1/5_numerical_facilities/special_functions/
09_cyl_bessel_j/check_value.cc: Add tests at nu=100, 1000<=x<=2000.
* testsuite/tr1/5_numerical_facilities/special_functions/
11_cyl_neumann/check_value.cc: Ditto.
* testsuite/special_functions/08_cyl_bessel_j/check_value.cc: Ditto.
* testsuite/special_functions/10_cyl_neumann/check_value.cc: Ditto.
Co-Authored-By: Edward Smith-Rowland <3dw4rd@verizon.net>
From-SVN: r266252
Define the thread-safe pool resource, using a shared_mutex to allow
multiple threads to concurrently allocate from thread-specific pools.
Define new weak symbols for the pthread_rwlock_t functions, to avoid
making libstdc++.so depend on libpthread.so
When the necessary Gthread support is absent only define the
feature-test macro to 1, rather than 201603. This is intended to imply
incomplete support, because everything except synchronized_pool_resource
works.
Implement std::pmr::synchronized_pool_resource
* config/abi/pre/gnu.ver: Add new symbols.
* include/std/memory_resource [_GLIBCXX_HAS_GTHREADS]
(__cpp_lib_memory_resource): Define to expected value, 201603.
(synchronized_pool_resource): New class.
[!_GLIBCXX_HAS_GTHREADS] (__cpp_lib_memory_resource): Define to 1.
* include/std/shared_mutex (__glibcxx_rwlock_rdlock)
(__glibcxx_rwlock_tryrdlock, __glibcxx_rwlock_wrlock)
(__glibcxx_rwlock_trywrlock, __glibcxx_rwlock_unlock)
(__glibcxx_rwlock_destroy, __glibcxx_rwlock_init)
(__glibcxx_rwlock_timedrdlock, __glibcxx_rwlock_timedwrlock): Define
weak symbols for POSIX rwlock functions.
(__shared_mutex_pthread): Use weak symbols.
* include/std/version (__cpp_lib_memory_resource): Define.
* src/c++17/memory_resource.cc [_GLIBCXX_HAS_GTHREADS]
(synchronized_pool_resource::_TPools): New class.
(destroy_TPools): New function for pthread_key_create destructor.
(synchronized_pool_resource::synchronized_pool_resource)
(synchronized_pool_resource::~synchronized_pool_resource)
(synchronized_pool_resource::release)
(synchronized_pool_resource::do_allocate)
(synchronized_pool_resource::do_deallocate): Define public members.
(synchronized_pool_resource::_M_thread_specific_pools)
(synchronized_pool_resource::_M_alloc_tpools)
(synchronized_pool_resource::_M_alloc_shared_tpools): Define private
members.
* testsuite/20_util/synchronized_pool_resource/allocate.cc: New test.
* testsuite/20_util/synchronized_pool_resource/cons.cc: New test.
* testsuite/20_util/synchronized_pool_resource/is_equal.cc: New test.
* testsuite/20_util/synchronized_pool_resource/multithreaded.cc: New
test.
* testsuite/20_util/synchronized_pool_resource/release.cc: New test.
* testsuite/performance/20_util/memory_resource/pools.cc: Add
multithreaded tests using pmr::synchronized_pool_resource.
From-SVN: r266242
This patch replaces the usage of cached results with a global dictionary.
Additionally, check_v3_target_namedlocale is updated to check on every variant.
Originally, it is only checked once.
gcc/libstdc++-v3/:
2018-11-16 Renlin Li <renlin.li@arm.com>
Tejas Belagod <tejas.belagod@arm.com>
testsuite/lib/libstdc++.exp (check_v3_target_prop_cached): New proc.
(check_v3_target): Use check_v3_target_prop_cached.
Co-Authored-By: Tejas Belagod <tejas.belagod@arm.com>
From-SVN: r266209
A recent change caused a performance regression. This restores the
previous performance and adds a performance test.
* scripts/check_performance: Allow tests to choose a -std flag.
* src/c++17/memory_resource.cc (bitset::get_first_unset()): Use local
variables of the right types. Call update_next_word() unconditionally.
* testsuite/20_util/unsynchronized_pool_resource/cons.cc: New test.
* testsuite/performance/20_util/memory_resource/pools.cc: New test.
* testsuite/util/testsuite_performance.h (time_counter): Allow
timer to be restarted.
From-SVN: r266164
* scripts/create_testsuite_files: Add special_functions to the list
of directories to search. Add comment referring to conformance.exp.
* testsuite/libstdc++-dg/conformance.exp: Add comment referring
to create_testsuite_files.
From-SVN: r266146
Make the munge_options function round the largest_required_pool_block
value to a multiple of the smallest pool size (currently 8 bytes) to
avoid pools with odd sizes.
Ensure there is a pool large enough for blocks of the requested size.
Previously when largest_required_pool_block was exactly equal to one of
the pool_sizes[] values there would be no pool of that size. This patch
increases _M_npools by one, so there is a pool at least as large as the
requested value. It also reduces the size of the largest pool to be no
larger than needed.
* src/c++17/memory_resource.cc (munge_options): Round up value of
largest_required_pool_block to multiple of smallest pool size. Round
excessively large values down to largest pool size.
(select_num_pools): Increase number of pools by one unless it exactly
matches requested largest_required_pool_block.
(__pool_resource::_M_alloc_pools()): Make largest pool size equal
largest_required_pool_block.
* testsuite/20_util/unsynchronized_pool_resource/options.cc: Check
that pool_options::largest_required_pool_block is set appropriately.
From-SVN: r266089
Since a big_block rounds up the size to a multiple of big_block::min it
is wrong to assert that the supplied number of bytes equals the
big_block's size(). Add big_block::alloc_size(size_t) to calculate the
allocated size consistently, and add comments to the code.
* src/c++17/memory_resource.cc (big_block): Improve comments.
(big_block::all_ones): Remove.
(big_block::big_block(size_t, size_t)): Use alloc_size.
(big_block::size()): Add comment, replace all_ones with equivalent
expression.
(big_block::align()): Shift value of correct type.
(big_block::alloc_size(size_t)): New function to round up size.
(__pool_resource::allocate(size_t, size_t)): Add comment.
(__pool_resource::deallocate(void*, size_t, size_t)): Likewise. Fix
incorrect assertion by using big_block::alloc_size(size_t).
* testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Add
more tests for unpooled allocations.
From-SVN: r266088
* src/c++17/memory_resource.cc (bitset::full()): Handle edge case
for _M_next_word maximum value.
(bitset::get_first_unset(), bitset::set(size_type)): Use
update_next_word() to update _M_next_word.
(bitset::update_next_word()): New function, avoiding wraparound of
unsigned _M_next_word member.
(bitset::max_word_index()): New function.
(chunk::chunk(void*, uint32_t, void*, size_t)): Add assertion.
(chunk::max_bytes_per_chunk()): New function.
(pool::replenish(memory_resource*, const pool_options&)): Prevent
_M_blocks_per_chunk from exceeding max_blocks_per_chunk or from
causing chunk::max_bytes_per_chunk() to be exceeded.
* testsuite/20_util/unsynchronized_pool_resource/allocate-max-chunks.cc:
New test.
From-SVN: r266087
Implement P0318R1 unwrap_ref_decay and unwrap_reference
* include/std/type_traits (unwrap_reference, unwrap_reference_t)
(unwrap_ref_decay, unwrap_ref_decay_t): New traits and aliases.
* testsuite/20_util/unwrap_reference/1.cc: New test.
* testsuite/20_util/unwrap_reference/2.cc: New test.
From-SVN: r266010
This patch updates GCC to use autoconf 2.69 and automake 1.15.1.
(That's not the latest automake version, but it's the one used by
binutils-gdb, with which consistency is desirable, and in any case
seems a useful incremental update that should make a future update to
1.16.1 easier.)
The changes are generally similar to the binutils-gdb ones, and are
copied from there where shared files and directories are involved
(there are some further changes to such shared directories, however,
which I'd expect to apply to binutils-gdb once this patch is in GCC).
Largely, obsolete AC_PREREQ calls are removed, while many
AC_LANG_SOURCE calls are added to avoid warnings from aclocal and
autoconf. Multilib support is no longer included in core automake,
meaning that multilib.am needs copying from automake's contrib
directory into the GCC source tree. Autoconf 2.69 has Go support, so
local copies of that support are removed. I hope the D support will
soon be submitted to upstream autoconf so the local copy of that can
be removed in a future update. Changes to how automake generates
runtest calls mean quotes are removed from RUNTEST definitions in five
lib*/testsuite/Makefile.am files (libatomic, libgomp, libitm,
libphobos, libvtv; some others have RUNTEST definitions without
quotes, which are still OK); libgo and libphobos also get
-Wno-override added to AM_INIT_AUTOMAKE so those overrides of RUNTEST
do not generate automake warnings.
Note that the regeneration did not include regeneration of
fixincludes/config.h.in (attempting such regeneration resulted in all
the USED_FOR_TARGET conditionals disappearing; and I don't see
anything in the fixincludes/ directory that would result in such
conditionals being generated, unlike in the gcc/ directory). Also
note that libvtv/testsuite/other-tests/Makefile.in was not
regenerated; that directory is not listed as a subdirectory for which
Makefile.in gets regenerated by calling "automake" in libvtv/, so I'm
not sure how it's meant to be regenerated.
While I mostly fixed warnings should running aclocal / automake /
autoconf, there were various such warnings from automake in the
libgfortran, libgo, libgomp, liboffloadmic, libsanitizer, libphobos
directories that I did not fix, preferring to leave those to the
relevant subsystem maintainers. Specifically, most of those warnings
were of the following form (example from libgfortran):
Makefile.am:48: warning: source file 'caf/single.c' is in a subdirectory,
Makefile.am:48: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they
will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
I think it's best for the relevant maintainers to add subdir-objects
and do any other associated Makefile.am changes needed. In some cases
the paths in the warnings involved ../; I don't know if that adds any
extra complications to the use of subdir-objects.
I've tested this with native, cross and Canadian cross builds. The
risk of any OS-specific issues should I hope be rather lower than if a
libtool upgrade were included (we *should* do such an upgrade at some
point, but it's more complicated - it involves identifying all our
local libtool changes to see if any aren't included in the upstream
version we update to, and reverting an upstream libtool patch that's
inappropriate for use in GCC); I think it would be better to get this
update into GCC so that people can test in different configurations
and we can fix any issues found, rather than to try to get more and
more testing done before it goes in.
top level:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* multilib.am: New file. From automake.
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* libtool.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
* ar-lib: New file.
* test-driver: New file.
* configure: Re-generate.
config:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* math.m4, tls.m4: Use AC_LANG_SOURCE.
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.
fixincludes:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* aclocal.m4, configure: Regenerate.
gcc:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE. Use single
line for second argument of AC_DEFINE_UNQUOTED.
* doc/install.texi (Tools/packages necessary for modifying GCC):
Update to autoconf 2.69 and automake 1.15.1.
* aclocal.m4, config.in, configure: Regenerate.
gnattools:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* configure: Regenerate.
gotools:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* config/go.m4: Remove file.
* Makefile.am (ACLOCAL_AMFLAGS): Do not use -I ./config.
* configure.ac: Remove AC_PREREQ. Do not include config/go.m4.
* Makefile.in, aclocal.m4, configure: Regenerate.
intl:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
* configure: Re-generate.
* config.h.in: Re-generate.
* aclocal.m4: Re-generate.
libada:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* configure: Regenerate.
libatomic:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* acinclude.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libbacktrace:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
libcc1:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure: Regenerate.
libcpp:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* aclocal.m4, config.in, configure: Regenerate.
libdecnumber:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* aclocal.m4.
libffi:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Add info-in-builddir.
(CLEANFILES): Remove doc/libffi.info.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure, fficonfig.h.in,
include/Makefile.in, man/Makefile.in, testsuite/Makefile.in:
Regenerate.
libgcc:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* configure: Regenerate.
libgfortran:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
libgo [logically part of this change but omitted from the commit]:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* config/go.m4: Remove file.
* config/libtool.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE. Use
-Wno-override in AM_INIT_AUTOMAKE call.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libgomp:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am
(AUTOMAKE_OPTIONS): Add info-in-builddir.
(CLEANFILES): Remove libgomp.info.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libhsail-rt:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure: Regenerate.
libiberty:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* config.in: Re-generate.
libitm:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Add info-in-builddir.
(CLEANFILES): Remove libitm.info.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libobjc:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* aclocal.m4, config.h.in, configure: Regenerate.
liboffloadmic:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* plugin/Makefile.am: Include multilib.am.
* plugin/configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure, plugin/Makefile.in,
plugin/aclocal.m4, plugin/configure: Regenerate.
libphobos:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ. Use -Wno-override in
AM_INIT_AUTOMAKE call.
* m4/autoconf.m4: Add extra argument to AC_LANG_DEFINE call.
* m4/druntime/os.m4: Use AC_LANG_SOURCE.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, libdruntime/Makefile.in,
src/Makefile.in, testsuite/Makefile.in: Regenerate.
libquadmath:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Remove 1.8. Add info-in-builddir.
(all-local): Define outside conditional code.
(CLEANFILES): Remove libquadmath.info.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
libsanitizer:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* Makefile.in, aclocal.m4, asan/Makefile.in, configure,
interception/Makefile.in, libbacktrace/Makefile.in,
lsan/Makefile.in, sanitizer_common/Makefile.in, tsan/Makefile.in,
ubsan/Makefile.in: Regenerate.
libssp:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Remove 1.9.5.
* configure.ac: Remove AC_PREREQ. Quote argument to
AC_RUN_IFELSE.
* Makefile.in, aclocal.m4, configure: Regenerate.
libstdc++-v3:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure, doc/Makefile.in,
include/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
python/Makefile.in, src/Makefile.in, src/c++11/Makefile.in,
src/c++17/Makefile.in, src/c++98/Makefile.in,
src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.
libvtv:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
lto-plugin:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
zlib:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add foreign.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
From-SVN: r265695
The introduction of the empty __pair_base base class for PR 86751
changed the layout of std::pair<std::pair<...>, ...>. The outer pair and
its first member both have a base class of the same type, which cannot
exist at the same address. This causes the first member to be at a
non-zero offset.
The solution is to make the base class depend on the template
parameters, so that each pair type has a different base class type,
which allows the base classes of the outer pair and its first member to
have the same address.
PR libstdc++/87822
* include/bits/stl_pair.h (__pair_base): Change to class template.
(pair): Make base class type depend on template parameters.
* testsuite/20_util/pair/87822.cc: New test.
From-SVN: r265678
If the allocator isn't default constructible then checking if the
default constructor throws in an exception specification makes the
declaration invalid. Use the type trait instead.
PR libstdc++/87809
* include/bits/forward_list.h (_Fwd_list_impl::_Fwd_list_impl()): Use
trait in exception-specification instead of possibly invalid
expression.
* include/bits/stl_bvector.h (_Bvector_impl::_Bvector_impl()):
Likewise.
* include/bits/stl_list.h (_List_impl::_List_impl()): Likewise.
* include/bits/stl_vector.h (_Vector_impl::_Vector_impl()): Likewise.
* testsuite/23_containers/forward_list/cons/87809.cc: New test.
* testsuite/23_containers/list/cons/87809.cc: New test.
* testsuite/23_containers/vector/bool/cons/87809.cc: New test.
* testsuite/23_containers/vector/cons/87809.cc: New test.
From-SVN: r265626
Previously the _M_Nb member was incremented before calling
_M_unchecked_set which meant that the bit being set was out of bounds.
It either set the wrong bit in an allocated word, or accessed beyond the
end of the allocated memory in the _M_w vector. The fix for the bug is
to update the _M_Nb member after using it as an index.
As an optimisation, when a new block needs to be appended the call to
_M_unchecked_set can be avoided by appending a block with the least
significant bit already set to the desired value.
PR libstdc++/87784
* include/tr2/dynamic_bitset (dynamic_bitset::push_back): When there
are no unused bits in the last block, append a new block with the
right value so the bit doesn't need to be set. Only increment size
after setting the new bit, not before.
* testsuite/tr2/dynamic_bitset/pr87784.cc: New test.
From-SVN: r265625
In the C++ FE, after emitting various errors about unrecognized names,
the parser can call
suggest_alternatives_for
and/or
suggest_alternative_in_explicit_scope.
These can issue zero or more suggestions for the unrecognized name,
or various other "note" diagnostics suggesting how to fix the problem.
For example, currently g++ emits:
t.cc:12:3: error: 'gtk_widget_showall' was not declared in this scope
12 | gtk_widget_showall (w);
| ^~~~~~~~~~~~~~~~~~
t.cc:12:3: note: suggested alternative: 'gtk_widget_show_all'
12 | gtk_widget_showall (w);
| ^~~~~~~~~~~~~~~~~~
| gtk_widget_show_all
This patch consolidates the common case when there is a single
candidate, so that the error can issue a fix-it hint directly.
This simplifies the above to:
t.cc:12:3: error: 'gtk_widget_showall' was not declared in this scope;
did you mean 'gtk_widget_show_all'?
12 | gtk_widget_showall (w);
| ^~~~~~~~~~~~~~~~~~
| gtk_widget_show_all
omitting the second "note" diagnostic.
Doing so requires changing the above "suggest_" functions so that
rather than being called after "error" and emitting a note directly,
they are called before the "error", and return a name_hint, which
can contain a suggestion and/or a deferred diagnostic. The "single
candidate" case is handled via a suggestion, and the "multiple
candidates" case via a new subclass of deferred_diagnostic.
There was some complication due to the fact that we don't always have
enough location information to issue a fix-it hint. Specifically,
for the case in qualified_name_lookup_error, the location is that of
the name, but the location of the qualifier prefix isn't reliably
available. For some hints, e.g. spell-corrections, the replacement
is of the name, and for others, e.g. parent namespaces, it's for the
qualified name. The patch addresses this by splitting this case out
into a new "suggest_alternatives_in_other_namespaces" function, for
which fix-it hints aren't issued.
Another complication is that of emitting a note when
--param cxx-max-namespaces-for-diagnostic-help
is reached. The patch emulates the existing behavior by emitting
the note from a deferred_diagnostic. This potentially needs to
co-exist with another deferred_diagnostic, so it works as a decorator
around any other such deferred_diagnostic. Doing so requires slightly
extending class name_hint.
On adding test coverage for the various cases, I discovered that
after emitting a "FOO is not a namespace-name" error, we also emit
a "expected namespace-name before" error. The patch removes this
second error for the case where it's redundant, simplifying this case
from e.g.:
spellcheck-ns.C:10:24: error: 'inner_ms' is not a namespace-name
10 | using namespace outer::inner_ms;
| ^~~~~~~~
spellcheck-ns.C:10:24: note: suggested alternative: 'inner_ns'
10 | using namespace outer::inner_ms;
| ^~~~~~~~
| inner_ns
spellcheck-ns.C:10:32: error: expected namespace-name before ';' token
10 | using namespace outer::inner_ms;
| ^
to:
spellcheck-ns.C:10:24: error: 'inner_ms' is not a namespace-name;
did you mean 'inner_ns'?
10 | using namespace outer::inner_ms;
| ^~~~~~~~
| inner_ns
include/ChangeLog:
* unique-ptr.h (gnu::move): Generalize so it applies to all
lvalue references, rather than just to unique_ptr values.
gcc/c-family/ChangeLog:
* name-hint.h (name_hint::take_deferred): New member function.
gcc/c/ChangeLog:
* c-decl.c (implicit_decl_warning): Update "is there a suggestion"
logic for change to name_hint::operator bool.
(undeclared_variable): Likewise.
* c-parser.c (c_parser_declaration_or_fndef): Likewise.
(c_parser_parameter_declaration): Likewise.
gcc/cp/ChangeLog:
* cp-name-hint.h: New file.
* cp-tree.h (expr_to_string): New decl.
(suggest_alternatives_for): Move to cp-name-hint.h, changing
return type from bool to name_hint.
(suggest_alternative_in_explicit_scope): Likewise.
* error.c: Define INCLUDE_UNIQUE_PTR. Include "cp-name-hint.h".
(expr_to_string): Make non-static.
(qualified_name_lookup_error): For the non-"::" case, take
responsibity for issuing any suggestion from
suggest_alternative_in_explicit_scope, as it changes from
returning a bool to returning a name_hint. Replace fallback call
to suggest_alternatives_for to a call to
suggest_alternatives_in_other_namespaces, capturing the fact that
we don't have enough location information to issue a fix-it hint
for this case. Update the error to support emitting a fix-it hint
where appropriate. For the "::" case, take responsibility for
issuing any suggestion from suggest_alternatives_for, supporting
emitting a fix-it hint.
* lex.c: Define INCLUDE_UNIQUE_PTR. Include "gcc-rich-location.h"
and "cp-name-hint.h".
(unqualified_name_lookup_error): Take responsibility for issuing
any suggestion from suggest_alternatives_for, supporting emitting
a fix-it hint.
* name-lookup.c (class namespace_limit_reached): New subclass of
deferred_diagnostic.
(class show_candidate_location): Likewise.
(class suggest_alternatives): Likewise.
(class namespace_hints): New class.
(suggest_alternatives_for): Convert return type from bool to
name_hint, replacing all direct diagnostic emission by setting
suggestions on the return value, or creating deferred diagnostics.
Specifically, split out initial traversal of namespaces into
namespace_hints' ctor, and maybe_decorate_with_limit, and move the
rest of the implementation to
namespace_hints::convert_candidates_to_name_hint and
suggest_alternatives_for_1.
(namespace_hints::namespace_hints): New ctor, adapted from
suggest_alternatives_for's initial namespace traversal, storing
location and name, and converting locals "candidates", "limited"
and "limit" into members.
(namespace_hints::convert_candidates_to_name_hint): New member
function.
(namespace_hints::maybe_decorate_with_limit): New member function.
(suggest_alternatives_for_1): New function, based on second half
of old implementation of suggest_alternatives_for, converting from
immediate emission of suggestions to using name_hint.
(suggest_alternatives_in_other_namespaces): New function.
(maybe_suggest_missing_std_header): Convert from immediate
emission of suggestions to using name_hint, moving emission
implementation to...
(class missing_std_header): New subclass of deferred_diagnostic.
(maybe_suggest_missing_header): Convert return type from bool to
name_hint.
(suggest_alternative_in_explicit_scope): Convert from immediate
emission of suggestions to using name_hint.
* parser.c: Replace include of "c-family/name-hint.h" with
"cp-name-hint.h".
(cp_parser_diagnose_invalid_type_name): Update
"is there a suggestion" logic for change to
name_hint::operator bool. Take responsibility for emitting
fix-it hints from suggest_alternative_in_explicit_scope.
(cp_parser_namespace_name): Take responsibility for emitting
fix-it hints from suggest_alternative_in_explicit_scope. Don't
emit the "expected namespace-name" error if we've already emitted
an "is not a namespace-name" error.
gcc/testsuite/ChangeLog:
* c-c++-common/spellcheck-reserved.c: Update expected output for
C++ for merger of "did you mean" suggestions into the error
message.
* g++.dg/ext/builtin3.C: Update expected output for merger of "did
you mean" suggestion into the error.
* g++.dg/lookup/error1.C: Likewise.
* g++.dg/lookup/pr77549.C: Likewise.
* g++.dg/lookup/pr80913.C: Likewise.
* g++.dg/lookup/suggestions1.C: Likewise.
* g++.dg/lookup/suggestions2.C: New test.
* g++.dg/overload/koenig1.C: Update expected output as above.
* g++.dg/spellcheck-identifiers-2.C: Likewise.
* g++.dg/spellcheck-identifiers.C: Likewise.
* g++.dg/spellcheck-ns.C: New test.
* g++.dg/spellcheck-pr77829.C: Update expected output as above.
* g++.dg/spellcheck-pr78656.C: Likewise.
* g++.dg/spellcheck-pr79298.C: Likewise, adding
-fdiagnostics-show-caret to options.
* g++.dg/spellcheck-pr80177.C: Likewise.
* g++.dg/spellcheck-single-vs-multiple.C: New test.
* g++.dg/spellcheck-typenames.C: Update expected output as above.
* g++.dg/template/static10.C: Likewise.
* g++.old-deja/g++.mike/ns5.C: Likewise.
* g++.old-deja/g++.mike/ns7.C: Likewise.
* g++.old-deja/g++.ns/koenig5.C: Likewise.
* g++.old-deja/g++.other/lineno5.C: Likewise.
libstdc++-v3/ChangeLog:
* testsuite/17_intro/using_namespace_std_exp_neg.cc: Remove
"expected namespace-name before" error.
* testsuite/17_intro/using_namespace_std_tr1_neg.cc: Likewise.
From-SVN: r265610
The move constructor for the SSO string uses assign(const basic_string&)
when either:
(1) the source string is "local" and so the contents of the small string
buffer need to be copied, or
(2) the allocator does not propagate and is_always_equal is false.
Case (1) is suboptimal, because the assign member is not noexcept and
the compiler isn't smart enough to see it won't actually throw in this
case. This causes extra code in the move assignment operator so that any
exception will be turned into a call to std::terminate. This can be
fixed by copying small strings inline instead of calling assign.
Case (2) is a bug, because the specific instances of the allocators
could be equal even if is_always_equal is false. This can result in an
unnecessary deep copy (and potentially-throwing allocation) when the
storage should be moved. This can be fixed by simply checking if the
allocators are equal.
PR libstdc++/87749
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::operator=(basic_string&&)): For short strings copy the
buffer inline. Only fall back to using assign(const basic_string&) to
do a deep copy when reallocation is needed.
* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/char/
move_assign_optim.cc: New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
move_assign_optim.cc: New test.
From-SVN: r265493
Using a delegating constructor to implement these constructors means
that they instantiate the destructor, which requires the element_type to
be complete. In C++11 and C++14 they were specified to be delegating,
but that was changed as part of LWG 2801 so in C++17 they don't require
a complete type (as was intended all along).
PR libstdc++/87704
* include/bits/unique_ptr.h (unique_ptr::unique_ptr(nullptr_t)): Do
not delegate to default constructor.
(unique_ptr<T[], D>::unique_ptr(nullptr_t)): Likewise.
* testsuite/20_util/unique_ptr/cons/incomplete.cc: New test.
From-SVN: r265423
2018-10-20 François Dumont <fdumont@gcc.gnu.org>
* testsuite/util/testsuite_containers.h
(forward_members_unordered<>::forward_members_unordered
(const value_type&)): Add local_iterator pre and post increment checks.
* config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 new symbol.
From-SVN: r265344
When __STRICT_ANSI__ is defined the incorrect allocators used in these
tests also trigger and additional static assertion. Prune those extra
errors so that the tests don't fail when built with strict dialects.
* testsuite/23_containers/deque/48101_neg.cc: Prune additional errors
printed when __STRICT_ANSI__ is defined.
* testsuite/23_containers/forward_list/48101_neg.cc: Likewise.
* testsuite/23_containers/list/48101_neg.cc: Likewise.
* testsuite/23_containers/multiset/48101_neg.cc: Likewise.
* testsuite/23_containers/set/48101_neg.cc: Likewise.
* testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
* testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
* testsuite/23_containers/vector/48101_neg.cc: Likewise.
From-SVN: r265333
As a GNU extension we allow containers to be instantiated with
allocators that use a different value type from the container, and
automatically rebind the allocator to the correct type. This extension
is disabled in strict modes (when __STRICT_ANSI__ is defined, i.e.
-std=c++NN dialects). These testcases unintentionally rely on the
extension and so fail for strict modes.
Tests which intentionally make use of the extension will still fail in
strict dialects, but will be addressed in a later change.
* testsuite/20_util/scoped_allocator/1.cc: Use allocator with correct
value type for the container.
* testsuite/23_containers/forward_list/cons/14.cc: Likewise.
* testsuite/23_containers/map/56613.cc: Likewise.
* testsuite/23_containers/unordered_map/55043.cc: Likewise.
* testsuite/23_containers/unordered_map/allocator/copy.cc: Likewise.
* testsuite/23_containers/unordered_map/allocator/copy_assign.cc:
Likewise.
* testsuite/23_containers/unordered_map/allocator/minimal.cc:
Likewise.
* testsuite/23_containers/unordered_map/allocator/move.cc: Likewise.
* testsuite/23_containers/unordered_map/allocator/move_assign.cc:
Likewise.
* testsuite/23_containers/unordered_map/allocator/noexcept.cc:
Likewise.
* testsuite/23_containers/unordered_map/cons/81891.cc: Likewise.
* testsuite/23_containers/unordered_map/requirements/exception/
basic.cc: Likewise.
* testsuite/23_containers/unordered_map/requirements/exception/
generation_prohibited.cc: Likewise.
* testsuite/23_containers/unordered_map/requirements/exception/
propagation_consistent.cc: Likewise.
* testsuite/23_containers/unordered_multimap/55043.cc: Likewise.
* testsuite/23_containers/unordered_multimap/allocator/copy.cc:
Likewise.
* testsuite/23_containers/unordered_multimap/allocator/copy_assign.cc:
Likewise.
* testsuite/23_containers/unordered_multimap/allocator/minimal.cc:
Likewise.
* testsuite/23_containers/unordered_multimap/allocator/move.cc:
Likewise.
* testsuite/23_containers/unordered_multimap/allocator/move_assign.cc:
Likewise.
* testsuite/23_containers/unordered_multimap/allocator/noexcept.cc:
Likewise.
* testsuite/23_containers/unordered_multimap/requirements/exception/
basic.cc: Likewise.
* testsuite/23_containers/unordered_multimap/requirements/exception/
generation_prohibited.cc: Likewise.
* testsuite/23_containers/unordered_multimap/requirements/exception/
propagation_consistent.cc: Likewise.
* testsuite/23_containers/unordered_multimap/requirements/
explicit_instantiation/5.cc: Likewise.
* testsuite/ext/malloc_allocator/sanity.cc: Likewise.
From-SVN: r265331
The airy and hypergeometric functions are non-standard extensions and
are only defined for -std=gnu++NN dialects, not -std=c++NN ones.
* ext/special_functions/airy_ai/check_nan.cc: Skip test for
non-standard extension when a strict -std=c++NN dialect is used.
* ext/special_functions/airy_ai/check_value.cc: Likewise.
* ext/special_functions/airy_ai/compile.cc: Likewise.
* ext/special_functions/airy_bi/check_nan.cc: Likewise.
* ext/special_functions/airy_bi/check_value.cc: Likewise.
* ext/special_functions/airy_bi/compile.cc: Likewise.
* ext/special_functions/conf_hyperg/check_nan.cc: Likewise.
* ext/special_functions/conf_hyperg/check_value.cc: Likewise.
* ext/special_functions/conf_hyperg/compile.cc: Likewise.
* ext/special_functions/hyperg/check_nan.cc: Likewise.
* ext/special_functions/hyperg/check_value.cc: Likewise.
* ext/special_functions/hyperg/compile.cc: Likewise.
From-SVN: r265330
These tests originally existed to check the containers in C++11 mode,
when the default was C++98 mode. Now that the default is C++14 (and we
run most tests for all modes) it serves no purpose to have two copies of
the tests when neither is explicitly using -std=gnu++98 anyway.
* testsuite/23_containers/list/requirements/explicit_instantiation/
5_c++0x.cc: Remove redundant test that is functionally identical to
the 5.cc test.
* testsuite/23_containers/map/requirements/explicit_instantiation/
5_c++0x.cc: Likewise.
* testsuite/23_containers/multimap/requirements/explicit_instantiation/
5_c++0x.cc: Likewise.
* testsuite/23_containers/multiset/requirements/explicit_instantiation/
5_c++0x.cc: Likewise.
* testsuite/23_containers/set/requirements/explicit_instantiation/
5_c++0x.cc: Likewise.
From-SVN: r265329
* include/bits/regex_executor.tcc (_Backref_matcher::_M_apply): Use
_GLIBCXX_STD_A to refer to normal mode algorithms.
* testsuite/28_regex/headers/regex/parallel_mode.cc: New test.
* testsuite/28_regex/headers/regex/std_c++0x_neg.cc: Remove empty
whitespace.
From-SVN: r265314
* testsuite/20_util/duration/cons/2.cc: Add -ffloat-store to fix
failure when compiled without optimisation.
* testsuite/ext/profile/mutex_extensions_neg.cc: Prune additional
errors caused by C++17 std::pmr alias templates.
From-SVN: r265287
Use the value of the first element as the initial value of the
__valarray_sum accumulator. Value-initialization might not create the
additive identity for the value type.
Make a similar change to __valarray_product even though it's only ever
used internally with a value_type of size_t.
PR libstdc++/87641
* include/bits/valarray_array.h (__valarray_sum): Use first element
to initialize accumulator instead of value-initializing it.
(__valarray_product<_Tp>): Move to ...
* src/c++98/valarray.cc (__valarray_product<_Tp>): Here. Use first
element to initialize accumulator.
(__valarray_product(const valarray<size_t>&)): Remove const_cast made
unnecessary by LWG 389.
* testsuite/26_numerics/valarray/87641.cc: New test.
From-SVN: r265270
* testsuite/experimental/net/internet/address/v4/creation.cc: Do not
declare ip in global namespace, to avoid collision with struct ip
defined in <netinet/ip.h>.
From-SVN: r265205
Define and use a new macro with a more descriptive name. Only use the
old macro in <tr1/random.h>.
* acinclude.m4 (GLIBCXX_CHECK_RANDOM_TR1): Replace with ...
(GLIBCXX_CHECK_DEV_RANDOM): New macro with more descriptive name.
Define _GLIBCXX_USE_DEV_RANDOM as well as _GLIBCXX_USE_RANDOM_TR1.
* config.h.in: Regenerate.
* configure: Regenerate.
* configure.ac: Use GLIBCXX_CHECK_DEV_RANDOM instead of
GLIBCXX_CHECK_RANDOM_TR1.
crossconfig.m4: Likewise.
* include/bits/random.h (random_device): Use _GLIBCXX_USE_DEV_RANDOM
instead of _GLIBCXX_USE_RANDOM_TR1.
* testsuite/26_numerics/random/random_device/cons/token.cc: Likewise.
From-SVN: r265197
PR libstdc++/87618
* config/abi/pre/gnu.ver: Fix typos in patterns for basic_stringbuf.
* testsuite/27_io/basic_stringbuf/cons/char/default.cc: Disable
optimisation to check constructor definition can be linked to.
* testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: Likewise.
From-SVN: r265188
Glibc changed the it_IT locales to use thousands separators,
invalidating this test. Use nl_NL instead, as Dutch only uses grouping
for money not numbers.
* testsuite/22_locale/numpunct/members/char/3.cc: Adjust test to
account for change to glibc it_IT localedata (glibc bz#10797).
From-SVN: r265165
* include/Makefile.am: Add new headers.
* include/Makefile.in: Regenerate.
* include/experimental/bits/net.h: New header for common
implementation details of Networking TS.
* include/experimental/buffer: New header.
* include/experimental/executor: New header.
* include/experimental/internet: New header.
* include/experimental/io_context: New header.
* include/experimental/net: New header.
* include/experimental/netfwd: New header.
* include/experimental/socket: New header.
* include/experimental/timer: New header.
* testsuite/experimental/net/buffer/arithmetic.cc: New test.
* testsuite/experimental/net/buffer/const.cc: New test.
* testsuite/experimental/net/buffer/creation.cc: New test.
* testsuite/experimental/net/buffer/mutable.cc: New test.
* testsuite/experimental/net/buffer/size.cc: New test.
* testsuite/experimental/net/buffer/traits.cc: New test.
* testsuite/experimental/net/execution_context/use_service.cc: New
test.
* testsuite/experimental/net/headers.cc: New test.
* testsuite/experimental/net/internet/address/v4/comparisons.cc: New
test.
* testsuite/experimental/net/internet/address/v4/cons.cc: New test.
* testsuite/experimental/net/internet/address/v4/creation.cc: New
test.
* testsuite/experimental/net/internet/address/v4/members.cc: New
test.
* testsuite/experimental/net/internet/resolver/base.cc: New test.
* testsuite/experimental/net/internet/resolver/ops/lookup.cc: New
test.
* testsuite/experimental/net/internet/resolver/ops/reverse.cc: New
test.
* testsuite/experimental/net/timer/waitable/cons.cc: New test.
* testsuite/experimental/net/timer/waitable/dest.cc: New test.
* testsuite/experimental/net/timer/waitable/ops.cc: New test.
From-SVN: r265080
It's not safe to assume that malloc(n) returns memory aligned to more
than n, so when relying on the guaranteed alignment of malloc ensure
that the number of bytes allocated is at least as large as the
alignment.
PR libstdc++/77691
* include/experimental/memory_resource (__resource_adaptor_imp): Do
not allocate sizes smaller than alignment when relying on guaranteed
alignment.
* testsuite/experimental/memory_resource/new_delete_resource.cc:
Adjust expected number of bytes allocated for alignof(max_align_t).
From-SVN: r265068
Avoid a system call when no sleep is required. Sleep in a loop (actually
two loops) to handle interruption by signals.
PR libstdc++/80538
* src/c++11/thread.cc (this_thread::__sleep_for)
[_GLIBCXX_HAVE_SLEEP]: Only call sleep for non-zero values.
Loop while sleep call is interrupted and until steady_clock
shows requested duration has elapsed.
(!_GLIBCXX_HAVE_USLEEP]: Use the _GLIBCXX_HAVE_SLEEP code path, but
avoiding the usleep call.
* testsuite/30_threads/this_thread/60421.cc: Test repeated
signal interruptions.
From-SVN: r265044
The Allocator requirements include the ability to compare different
specializations of the same allocator class template. This did not work
for __gnu_cxx::new_allocator and other extension allocators. This patch
replaces the equality operators for those allocators with inline friends
that support heterogeneous comparisons. (I'm not changing all ext
allocators because some are bit-rotted already).
Additionally, the equality operators for comparing two std::allocator
objects of the same type are now defined as inline friends. Those
overloads don't need to be declared at namespace scope, because they
aren't specified in the standard (but they're needed in this
implementation to avoid ambiguities caused by the extra overloads
defined for the base allocator type).
* include/bits/allocator.h
(operator==(const allocator<_Tp>&, const allocator<_Tp>))
(operator!=(const allocator<_Tp>&, const allocator<_Tp>)): Replace
with inline friends.
* include/ext/debug_allocator.h (operator==, operator!=): Replace
with inline friend functions that compare to rebound allocators.
* include/ext/malloc_allocator.h (operator==, operator!=): Likewise.
* include/ext/new_allocator.h (operator==, operator!=): Likewise.
* testsuite/ext/debug_allocator/eq.cc: New test.
* testsuite/ext/ext_pointer/alloc_eq.cc: New test.
* testsuite/ext/malloc_allocator/eq.cc: New test.
* testsuite/ext/new_allocator/eq.cc: New test.
From-SVN: r265036
The C++17 standard requires the default implementation for
allocator_traits::max_size to return SIZE_MAX / sizeof(value_type).
That causes GCC to warn because the value could be larger than can
sensibly be passed to malloc. This patch changes the new_allocator and
malloc_allocator max_size() members to use PTRDIFF_MAX instead of
SIZE_MAX (and because they define it, the allocator_traits default isn't
used). This also changes vector::max_size to impose a sensible limit
using PTRDIFF_MAX for cases where the value from the allocator or
allocator_traits is not sensible.
PR libstdc++/87544
* include/bits/stl_vector.h (vector::_S_max_size): Limit size to
PTRDIFF_MAX / sizeof(value_type).
* include/ext/malloc_allocator.h (malloc_allocator::max_size):
Likewise.
* include/ext/new_allocator.h (new_allocator::max_size): Likewise.
* testsuite/23_containers/vector/allocator/minimal.cc: Adjust
expected value for max_size().
* testsuite/23_containers/vector/capacity/87544.cc: New test.
From-SVN: r265021
PR libstdc++/87538
* include/std/functional (_Not_fn::operator()): Check value of
__is_nothrow_invocable as well.
* testsuite/20_util/function_objects/not_fn/87538.cc: New test.
From-SVN: r264921
<https://gcc.gnu.org/ml/libstdc++/2016-08/msg00006.html> arranged for
libstdc++ tests to use -fno-show-column by default, but only for
build-tree testing. This patch adds it to the options used for
installed testing as well.
Tested with installed testing for a cross to x86_64-linux-gnu, where
it fixes various test failures.
* testsuite/lib/libstdc++.exp (libstdc++_init): Use
-fno-show-column in default cxxflags.
From-SVN: r264784
Remove the hypot-long-double.cc file that used dg-xfail-run-if and
simply use the lower tolerance for double if long double is not larger
than double.
* testsuite/26_numerics/headers/cmath/hypot-long-double.cc: Remove.
* testsuite/26_numerics/headers/cmath/hypot.cc: Restore test for
long double unconditionally, but use lower tolerance when
sizeof(long double) == sizeof(double).
From-SVN: r264483
2018-09-18 François Dumont <fdumont@gcc.gnu.org>
PR libstdc++/87135
* src/c++11/hashtable_c++0x.cc:
(_Prime_rehash_policy::_M_next_bkt): Return a prime no smaller than
requested size, but not necessarily greater.
(_Prime_rehash_policy::_M_need_rehash): Rehash only if target size is
strictly greater than next resize threshold.
* testsuite/23_containers/unordered_map/modifiers/reserve.cc: Adapt test
to validate that there is no rehash as long as number of insertion is
lower or equal to the reserved number of elements.
From-SVN: r264413
The deleter only needs to be invocable when the unique_ptr destructor
and reset member function are instantiated. In other contexts it might
not be possible to pass unique_ptr<T, D>::pointer to the deleter, if
that requires a derived-to-base conversion from T* and T is incomplete.
* include/bits/unique_ptr.h (__uniq_ptr_impl): Remove static assertion
checking invocable condition.
(unique_ptr::~unique_ptr, unique_ptr::reset): Restore static assertion
here, where types must be complete. Pass pointer to deleter as an
rvalue.
* testsuite/20_util/unique_ptr/requirements/incomplete.cc: New test.
From-SVN: r264399
LWG DR 2905 says that is_constructible_v<unique_ptr<P, D>, P, D const &>
should be false when D is not copy constructible. This commit implements
the changes from the DR and simplifies the signatures as per
https://github.com/cplusplus/draft/issues/1530
* include/bits/unique_ptr.h (__uniq_ptr_impl): Add assertions to
check deleter type.
(unique_ptr::unique_ptr(pointer, const deleter_type&)): Add copy
constructible constraint.
(unique_ptr::unique_ptr(pointer, deleter_type&&)): Disable for
deleters of reference type and add move constructible constraint.
(unique_ptr::unique_ptr(pointer, remove_reference_t<deleter_type>&&)):
Disable for deleters of non-reference type. Define as deleted.
(unique_ptr<T[], D>): Likewise.
* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Replace dg-error
directives with unstable line numbers with dg-prune-output.
* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
* testsuite/20_util/unique_ptr/cons/lwg2905.cc: New test.
* testsuite/20_util/unique_ptr/specialized_algorithms/swap_cxx17.cc:
Make deleter types invocable.
From-SVN: r264206
Split the long double testing into a separate file, so that we can XFAIL
targets where the long double precision doesn't meet the expected
tolerances. The float and double tests are still expefted to PASS for
all targets.
PR libstdc++/78179
* testsuite/26_numerics/headers/cmath/hypot-long-double.cc: New test
that runs the long double part of hypot.cc.
* testsuite/26_numerics/headers/cmath/hypot.cc: Disable long double
tests unless TEST_HYPOT_LONG_DOUBLE is defined.
From-SVN: r264063
Since C++11 range insertion and construction of maps and sets from a
pair of iterators only requires that the iterator's value_type is
convertible to the container's value_type (previously it had to be the
same).
This fixes the implementation to meet that relaxed requirement, by
defining a pair of overloads that either insert or emplace, depending on
the iterator's value_type. Instead of adding yet another overload of
_M_insert_unique and _M_insert_equal, the overloads taking iterators are
renamed to _M_insert_range_unique and _M_insert_range_equal.
PR libstdc++/87194
* include/bits/stl_map.h
(map::map(initializer_list<value_type>, const Compare&, const Alloc&))
(map::map(initializer_list<value_type>, const Alloc&))
(map::map(InputIterator, InputIterator, const Alloc&))
(map::map(InputIterator, InputIterator))
(map::map(InputIterator, InputIterator, const Compare&, const Alloc&))
(map::insert(InputIterator, InputIterator)):
Call _M_insert_range_unique instead of _M_insert_unique.
* include/bits/stl_multimap.h
(multimap::multimap(initializer_list<value_type>, const C&, const A&))
(multimap::multimap(initializer_list<value_type>, const A&))
(multimap::multimap(InputIterator, InputIterator, const A&))
(multimap::multimap(InputIterator, InputIterator))
(multimap::multimap(InputIterator, InputIterator, const C&, const A&))
(multimap::insert(InputIterator, InputIterator)): Call
_M_insert_range_equal instead of _M_insert_equal.
* include/bits/stl_multiset.h
(multiset::multiset(InputIterator, InputIterator))
(multiset::multiset(InputIterator, InputIterator, const C&, const A&))
(multiset::multiset(initializer_list<value_type>, const C&, const A&))
(multiset::multiset(initializer_list<value_type>, const A&))
(multiset::multiset(InputIterator, InputIterator, const A&))
(multiset::insert(InputIterator, InputIterator)): Call
_M_insert_range_equal instead of _M_insert_equal.
* include/bits/stl_set.h
(set::set(InputIterator, InputIterator))
(set::set(InputIterator, InputIterator, const Compare&, const Alloc&))
(set::set(initializer_list<value_type>, const Compare&, const Alloc&))
(set::set(initializer_list<value_type>, const Alloc&))
(set::set(InputIterator, InputIterator, const Alloc&))
(set::insert(InputIterator, InputIterator)):
Call _M_insert_range_unique instead of _M_insert_unique.
* include/bits/stl_tree.h
[__cplusplus >= 201103L] (_Rb_tree::__same_value_type): New alias
template for SFINAE constraints.
[__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_unique): Pair of
constrained overloads that either insert or emplace, depending on
iterator's value_type.
[__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_equal): Likewise.
[__cplusplus < 201103L] (_Rb_tree::_M_insert_range_unique)
(_Rb_tree::_M_insert_range_equal): New functions replacing range
versions of _M_insert_unique and _M_insert_equal.
(_Rb_tree::_M_insert_unique(_InputIterator, _InputIterator))
(_Rb_tree::_M_insert_equal(_InputIterator, _InputIterator)): Remove.
* testsuite/23_containers/map/modifiers/insert/87194.cc: New test.
* testsuite/23_containers/multimap/modifiers/insert/87194.cc: New test.
* testsuite/23_containers/multiset/modifiers/insert/87194.cc: New test.
* testsuite/23_containers/set/modifiers/insert/87194.cc: New test.
From-SVN: r264060
C++14 simplified the specification of the generic insert function
templates to be equivalent to calling emplace (or emplace_hint).
Defining them in terms of emplace takes care of the problems described
in PR 78595, ensuring a single conversion to value_type is done at the
right time.
PR libstdc++/78595
* include/bits/stl_map.h (map::insert(_Pair&&))
(map::insert(const_iterator, _Pair&&)): Do emplace instead of insert.
* include/bits/stl_multimap.h (multimap::insert(_Pair&&))
(multimap::insert(const_iterator, _Pair&&)): Likewise.
* include/bits/unordered_map.h (unordered_map::insert(_Pair&&))
(unordered_map::insert(const_iterator, _Pair&&))
(unordered_multimap::insert(_Pair&&))
(unordered_multimap::insert(const_iterator, _Pair&&)): Likewise.
* testsuite/23_containers/map/modifiers/insert/78595.cc: New test.
* testsuite/23_containers/multimap/modifiers/insert/78595.cc: New test.
* testsuite/23_containers/unordered_map/modifiers/78595.cc: New test.
* testsuite/23_containers/unordered_multimap/modifiers/78595.cc: New
test.
From-SVN: r264059
For values where the result cannot be represented the shift width would
be equal to the width of the type, which is undefined. Perform two
well-defined shifts instead of one possible undefined shift.
* include/bits/hashtable_policy.h (__clp2): Fix calculation for LLP64
targets where sizeof(size_t) > sizeof(long). Avoid undefined shifts
of the number of bits in the type.
* include/std/bit (__ceil2): Avoid undefined shifts.
* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Test values with
the most signifiant bit set.
From-SVN: r263986
* include/ext/pointer.h (_Pointer_adapter): Define operators for
pointer arithmetic using long long offsets.
* testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
long long values.
From-SVN: r263976
Debian uses a different D_FMT string for the zh_TW.UTF-8 locale, which
caused this test to fail. Try to detect the Debian format and adjust
the input being tested.
PR libstdc++/31413
* testsuite/22_locale/time_get/get_date/wchar_t/4.cc: Check D_FMT
string for alternative format.
From-SVN: r263948
Previously the logic that turned "a/b/c/../.." into "a/" failed to
preserve an empty path at the end of the iteration sequence, as required
by the trailing slash. That meant the result didn't meet the class
invariants, and that "a/b/c/d/../../.." would remove four components
instead of the three that "../../.." should remove.
PR libstdc++/87116
* src/filesystem/std-path.cc (path::lexically_normal): When handling
a dot-dot filename, preserve an empty final component in the iteration
sequence.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use preferred-separator for
root-directory.
* testsuite/27_io/filesystem/path/generation/normal.cc: Add new tests
for more than two adjacent dot-dot filenames.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Replace slashes with
preferred-separator in expected normalized strings.
From-SVN: r263922
Prior to this change, including a <debug/xxx> header when _GLIBCXX_DEBUG
is also defined would fail to compile in C++17 or later. The <debug/xxx>
header would include the standard <xxx> header which defined
std::pmr::xxx as an alias for std::xxx. But in Debug Mode std::xxx
refers to std::__debug::xxx which has not been defined yet (because it
is in <debug/xxx> after the inclusion of <xxx>).
This adds declarations of the debug containers before including the
non-Debug Mode <xxx> header, so that the std::pmr::xxx aliases work.
* include/debug/deque (std::__debug::deque): Declare.
* include/debug/forward_list (std::__debug::forward_list): Declare.
* include/debug/list (std::__debug::list): Declare.
* include/debug/map (std::__debug::map): Declare.
* include/debug/set (std::__debug::set): Declare.
* include/debug/unordered_map (std::__debug::unordered_map): Declare.
* include/debug/unordered_set (std::__debug::unordered_set): Declare.
* include/debug/vector (std::__debug::vector): Declare.
* testsuite/23_containers/deque/types/pmr_typedefs_debug.cc: New test.
* testsuite/23_containers/forward_list/pmr_typedefs_debug.cc: New
test.
* testsuite/23_containers/list/pmr_typedefs_debug.cc: New test.
* testsuite/23_containers/map/pmr_typedefs_debug.cc: New test.
* testsuite/23_containers/multimap/pmr_typedefs_debug.cc: New test.
* testsuite/23_containers/multiset/pmr_typedefs_debug.cc: New test.
* testsuite/23_containers/set/pmr_typedefs_debug.cc: New test.
* testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc: New
test.
* testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc:
New test.
* testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc:
New test.
* testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc: New
test.
* testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
Adjust dg-error lineno.
* testsuite/23_containers/vector/types/pmr_typedefs_debug.cc: New
test.
From-SVN: r263839
* testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
Fix C++98 test to not use C++11 features.
* testsuite/25_algorithms/fill_n/2.cc: Likewise.
From-SVN: r263815
The __gnu_debug string (mostly) implements the C++11 API, but when it
wraps the old COW string many of the member functions in the base class
have the wrong parameter types or return types. This makes the
__gnu_debug::string type adapt itself to the base class API. This
actually makes the debug string slightly more conforming than the
underlying string type when using the old ABI.
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::__const_iterator): Change access to protected.
[!_GLIBCXX_USE_CXX11_ABI] (basic_string::__const_iterator): Define
as typedef for iterator.
* include/debug/string (__const_iterator): Use typedef from base.
(insert(const_iterator, _CharT))
(replace(const_iterator, const_iterator, const basic_string&))
(replace(const_iterator, const_iterator, const _CharT*, size_type))
(replace(const_iterator, const_iterator, const CharT*))
(replace(const_iterator, const_iterator, size_type, _CharT))
(replace(const_iterator, const_iterator, _InputIter, _InputIter))
(replace(const_iterator, const_iterator, initializer_list<_CharT>)):
Change const_iterator parameters to __const_iterator.
(insert(iterator, size_type, _CharT)): Add C++98 overload.
(insert(const_iterator, _InputIterator, _InputIterator)): Change
const_iterator parameter to __const_iterator.
[!_GLIBCXX_USE_CXX11_ABI]: Add workaround for incorrect return type
of base's member function.
(insert(const_iterator, size_type, _CharT)) [!_GLIBCXX_USE_CXX11_ABI]:
Likewise.
(insert(const_iterator, initializer_list<_CharT>))
[!_GLIBCXX_USE_CXX11_ABI]: Likewise.
* testsuite/21_strings/basic_string/init-list.cc: Remove effective
target directive.
From-SVN: r263808
* testsuite/20_util/reference_wrapper/lwg2993.cc: Fix C++11 test to
not use C++14 feature.
* testsuite/23_containers/list/68222_neg.cc: Likewise.
From-SVN: r263801
The container requirements imply that max_size() can't exceed the
maximum value of the container's difference_type. Enforce this for
std::vector and std::deque, and add checks to ensure the container
doesn't grow larger than that.
PR libstdc++/78448
* include/bits/deque.tcc (deque::_M_range_initialize): Use
_S_check_init_len to check size.
(deque::_M_push_back_aux, deque::_M_push_front_aux): Throw length
error if size would exceed max_size().
* include/bits/stl_deque.h (_Deque_base::size_type): Remove typedef.
(_Deque_base(_Deque_base&&, const allocator_type&, size_t)): Use
size_t instead of size_type.
(deq(size_type, const allocator_type&)
(deq(size_type, const value_type&, const allocator_type&)
(deque::_M_initialize_dispatch): Use _S_check_init_len to check size.
(deque::max_size): Call _S_max_size.
(deque::_S_check_init_len, deque::_S_max_size): New functions.
* include/bits/stl_vector.h (vector(size_type, const allocator_type&))
(vector(size_type, const value_type&, const allocator_type&))
(vector::_M_initialize_dispatch, vector::_M_range_initialize): Use
_S_check_init_len to check size.
(vector::max_size): Call _S_max_size.
(vector::_M_check_len): Prevent max from being expanded as a
function-like macro.
(vector::_S_check_init_len, vector::_S_max_size): New functions.
* include/bits/vector.tcc (vector::_M_assign_aux): Use
_S_check_init_len to check size.
* testsuite/23_containers/deque/capacity/max_size.cc: New test.
* testsuite/23_containers/vector/capacity/max_size.cc: New test.
From-SVN: r263789
These tests accidentally had two dg-do directives. Only the second one
is needed.
* testsuite/26_numerics/bit/bitops.count/countl_one.cc: Remove
redundant dg-do directive.
* testsuite/26_numerics/bit/bitops.count/countl_zero.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countr_one.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countr_zero.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/popcount.cc: Likewise.
From-SVN: r263695
* include/std/optional (_Optional_payload): Use variable templates
for conditions in default template arguments and exception
specifications.
(optional): Likewise. Adjust indentation.
(optional::__not_self, optional::__not_tag, optional::_Requires): New
SFINAE helpers.
(optional::optional): Use new helpers in constructor constraints.
* include/std/type_traits (__or_v, __and_v): New variable templates.
* testsuite/20_util/optional/cons/value_neg.cc: Change dg-error to
dg-prune-output. Remove unused header.
From-SVN: r263657
PR libstdc++/86963
* include/std/tuple (__tuple_base): New class template with deleted
copy assignment operator.
(tuple, tuple<_T1, _T2>): Derive from __tuple_base<tuple> so that
implicit copy/move assignment operator will be deleted/suppressed.
(tuple::__assignable, tuple<_T1, _T2>::__assignable): New helper
functions for SFINAE constraints on assignment operators.
(tuple::__nothrow_assignable, tuple<_T1, _T2>::__nothrow_assignable):
New helper functions for exception specifications.
(tuple::operator=(const tuple&), tuple::operator=(tuple&&))
(tuple<_T1, _T2>::operator=(const tuple&))
(tuple<_T1, _T2>::operator=(tuple&&)): Change parameter types to
__nonesuch_no_braces when the operator should be defined implicitly.
Use __nothrow_assignable for exception specifications.
(tuple::operator=(const tuple<_UElements...>&))
(tuple::operator=(tuple<_UElements...>&&))
(tuple<_T1, _T2>::operator=(const tuple<_U1, _U2>&))
(tuple<_T1, _T2>::operator=(tuple<_U1, _U2>&&))
(tuple<_T1, _T2>::operator=(const pair<_U1, _U2>&))
(tuple<_T1, _T2>::operator=(pair<_U1, _U2>&&)): Constrain using
__assignable and use __nothrow_assignable for exception
specifications.
* python/libstdcxx/v6/printers.py (is_specialization_of): Accept
gdb.Type as first argument, instead of a string.
(StdTuplePrinter._iterator._is_nonempty_tuple): New method to check
tuple for expected structure.
(StdTuplePrinter._iterator.__init__): Use _is_nonempty_tuple.
* testsuite/20_util/tuple/dr2729.cc: New test.
* testsuite/20_util/tuple/element_access/get_neg.cc: Change dg-error
to dg-prune-output.
From-SVN: r263625
The typedefs in <experimental/regex> and <experimental/string> don't
need to be in the __cxx11 namespace, because they are only aliases and
so will have the same mangled name as the underlying types.
* include/experimental/regex: Remove begin/end macros for namespace.
* include/experimental/string: Likewise.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_forward_list.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_multimap.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_multiset.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_map.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_multimap.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_multiset.cc: New test.
* testsuite/experimental/polymorphic_allocator/
pmr_typedefs_unordered_set.cc: New test.
* testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
New test.
From-SVN: r263568
Remove duplicated logic in experimental::pmr::polymorphic_allocator by
calling the __uses_allocator_construct helper.
Fix bugs in std::pmr::polymorphic_allocator with incorrect SFINAE
constraint and incorrect argument order.
* include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
calls to __uses_allocator_construct_impl and __use_alloc.
* include/experimental/memory_resource
(polymorphic_allocator::_M_construct): Remove.
(polymorphic_allocator::construct): Call __uses_allocator_construct.
Qualify calls to __use_alloc.
* include/std/memory_resource (polymorphic_allocator::construct): Fix
type in SFINAE constraint. Use constexpr if instead of tag dispatching
to _S_construct overloads.
(polymorphic_allocator::construct(pair<T1, T2>*, ...)): Fix order of
arguments to _S_construct_p.
(polymorphic_allocator::_S_construct): Remove.
(polymorphic_allocator::_S_construct_p): Return allocators by value
not by reference.
* include/std/scoped_allocator (scoped_allocator_adaptor::construct):
Qualify calls to __use_alloc.
* testsuite/20_util/polymorphic_allocator/construct_pair.cc: New test,
copied from testsuite/20_util/scoped_allocator/construct_pair.cc.
* testsuite/experimental/polymorphic_allocator/1.cc: New test.
* testsuite/experimental/polymorphic_allocator/construct_pair.cc:
New test.
From-SVN: r263566
Rope iterators sometimes contain pointers to an internal buffer
inside the iterator itself. When such an iterator is copied, the
copy incorrectly retains pointers to the original.
This patch takes the simple approach of not copying the cached
information when the internal buffer is being used, instead
requiring it to be recomputed when the copied iterator is
dereferenced. An alternative would be to adjust the pointers so
they refer to the buffer in the copy.
2018-08-14 Jeremy Sawicki <jeremy-gcc@sawicki.us>
* include/ext/rope (_Rope_iterator_base(const _Rope_iterator_base&))
(_Rope_const_iterator::operator=(const _Rope_const_iterator&))
(_Rope_iterator::operator=(const _Rope_iterator&)): Ensure
copied/assigned rope iterators don't retain pointers to the iterator
they were copied/assigned from.
* testsuite/ext/rope/7.cc: New.
From-SVN: r263534
* include/Makefile.am: Install <bit> and <version> for freestanding.
* include/Makefile.in: Regenerate.
* testsuite/17_intro/freestanding.cc: Check for <bit> and <version>.
From-SVN: r263514
Ensure that nothrow versions of new and delete call the ordinary
versions of new or delete, instead of calling malloc or free directly.
These files are all compiled with -std=gnu++14 so can use noexcept and
nullptr to make the code more readable.
PR libstdc++/68210
* doc/xml/manual/intro.xml: Document LWG 206 change.
* libsupc++/del_op.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
* libsupc++/del_opa.cc: Likewise.
* libsupc++/del_opant.cc: Likewise.
* libsupc++/del_opnt.cc: Likewise. Call operator delete(ptr) instead
of free(ptr).
* libsupc++/del_ops.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
* libsupc++/del_opsa.cc: Likewise.
* libsupc++/del_opva.cc: Likewise.
* libsupc++/del_opvant.cc: Likewise.
* libsupc++/del_opvnt.cc: Likewise. Call operator delete[](ptr)
instead of operator delete(ptr).
* libsupc++/del_opvs.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
* libsupc++/del_opvsa.cc: Likewise.
* libsupc++/new_op.cc: Use __builtin_expect in check for zero size.
* libsupc++/new_opa.cc: Use nullptr instead of literal 0.
* libsupc++/new_opant.cc: Likewise. Replace _GLIBCXX_USE_NOEXCEPT
with noexcept.
* libsupc++/new_opnt.cc: Likewise. Call operator new(sz) instead of
malloc(sz).
* libsupc++/new_opvant.cc: Use nullptr and noexcept.
* libsupc++/new_opvnt.cc: Likewise. Call operator new[](sz) instead of
operator new(sz, nothrow).
* testsuite/18_support/new_nothrow.cc: New test.
From-SVN: r263478
These aliases are placed in the top-level header, e.g. <vector> not
<bits/stl_vector.h>. This ensures that they refer to whichever of
std::vector or __debug::vector or __profile::vector is in use when the
header is included.
* include/std/deque (std::pmr::deque): Declare alias.
* include/std/forward_list (std::pmr::forward_list): Likewise.
* include/std/list (std::pmr::list): Likewise.
* include/std/map (std::pmr::map, std::pmr::multimap): Likewise.
* include/std/regex (std::pmr::match_results, std::pmr::cmatch)
(std::pmr::smatch, std::pmr::wcmatch, std::pmr::wsmatch): Likewise.
* include/std/set (std::pmr::set, std::pmr::multiset): Likewise.
* include/std/string (std::pmr::basic_string, std::pmr::string)
(std::pmr::u16string, std::pmr::u32string, std::pmr::wstring):
Likewise.
* include/std/unordered_map (std::pmr::unordered_map)
(std::pmr::unordered_multimap): Likewise.
* include/std/unordered_set (std::pmr::unordered_set)
(std::pmr::unordered_multiset): Likewise.
* include/std/vector (std::pmr::vector): Likewise.
* testsuite/21_strings/basic_string/types/pmr_typedefs.cc: New test.
* testsuite/23_containers/deque/types/pmr_typedefs.cc: New test.
* testsuite/23_containers/forward_list/pmr_typedefs.cc: New test.
* testsuite/23_containers/list/pmr_typedefs.cc: New test.
* testsuite/23_containers/map/pmr_typedefs.cc: New test.
* testsuite/23_containers/multimap/pmr_typedefs.cc: New test.
* testsuite/23_containers/multiset/pmr_typedefs.cc: New test.
* testsuite/23_containers/set/pmr_typedefs.cc: New test.
* testsuite/23_containers/unordered_map/pmr_typedefs.cc: New test.
* testsuite/23_containers/unordered_multimap/pmr_typedefs.cc: New
test.
* testsuite/23_containers/unordered_multiset/pmr_typedefs.cc: New
test.
* testsuite/23_containers/unordered_set/pmr_typedefs.cc: New test.
* testsuite/23_containers/vector/pmr_typedefs.cc: New test.
* testsuite/28_regex/match_results/pmr_typedefs.cc: New test.
From-SVN: r263456
PR libstdc++/86597
* include/bits/fs_dir.h (directory_entry::_M_file_type(error_code&)):
Clear error_code when cached type is used.
* testsuite/27_io/filesystem/directory_entry/86597.cc: New test.
From-SVN: r263397
PR libstdc++/86874
* include/std/variant (_Copy_ctor_base::_M_destructive_move): Define
here instead of in _Move_assign_base.
(_Copy_ctor_base<true, _Types...>::_M_destructive_move): Define.
(_Copy_assign_base::operator=): Use _M_destructive_move when changing
the contained value to another alternative.
(_Move_assign_base::operator=): Likewise.
(_Move_assign_base::_M_destructive_move): Remove.
* testsuite/20_util/variant/86874.cc: New test.
From-SVN: r263365
* src/c++11/system_error.cc
(system_error_category::default_error_condition): Add workaround for
ENOTEMPTY and EEXIST having the same value on AIX.
* testsuite/19_diagnostics/error_category/system_category.cc: Add
extra testcases for EDOM, EILSEQ, ERANGE, EEXIST and ENOTEMPTY.
From-SVN: r263289
As currently implemented, condition_variable always ultimately waits
against std::chrono::system_clock. This clock can be changed in arbitrary
ways by the user which may result in us waking up too early or too late
when measured against the caller-supplied clock.
We can't (yet) do much about waking up too late (PR 41861), but
if we wake up too early we must return cv_status::no_timeout to indicate a
spurious wakeup rather than incorrectly returning cv_status::timeout.
2018-08-01 Mike Crowe <mac@mcrowe.com>
* include/std/condition_variable (wait_until): Only report timeout
if we really have timed out when measured against the
caller-supplied clock.
* testsuite/30_threads/condition_variable/members/2.cc: Add test
case to confirm above behaviour.
From-SVN: r263224
PR libstdc++/60555
* src/c++11/system_error.cc
(system_error_category::default_error_condition): New override to
check for POSIX errno values.
* testsuite/19_diagnostics/error_category/generic_category.cc: New
* testsuite/19_diagnostics/error_category/system_category.cc: New
test.
From-SVN: r263210
The solution for PR 77537 causes ambiguities due to the extra copy
assignment operator taking a __nonesuch_no_braces parameter. By making
the base class non-assignable we don't need the extra deleted overload
in std::pair. The copy assignment operator will be implicitly deleted
(and the move assignment operator not declared) as needed. Without the
additional user-provided operator in std::pair the ambiguity is avoided.
PR libstdc++/86751
* include/bits/stl_pair.h (__pair_base): New class with deleted copy
assignment operator.
(pair): Derive from __pair_base.
(pair::operator=): Remove deleted overload.
* python/libstdcxx/v6/printers.py (StdPairPrinter): New pretty printer
so that new base class isn't shown in GDB.
* testsuite/20_util/pair/86751.cc: New test.
* testsuite/20_util/pair/ref_assign.cc: New test.
From-SVN: r263185
Implement the proposed resolution from LWG 1052, which also resolves
DR 2118 by avoiding taking the address in the first place.
PR libstdc++/86734
* include/bits/stl_iterator.h (reverse_iterator::operator->): Call
_S_to_pointer (LWG 1052, LWG 2118).
(reverse_iterator::_S_to_pointer): Define overloaded helper functions.
* testsuite/24_iterators/reverse_iterator/dr1052.cc: New test.
* testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.
From-SVN: r263074
20_util/memory_resource/2.cc FAILs on AIX 7.2.0.0, because aligned_alloc
incorrectly requires the alignment to be a multiple of sizeof(void*).
This adds a workaround to the operator new overload taking an alignment
value, to increase the alignment (and size) if needed.
* libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Add
workaround for aligned_alloc bug on AIX.
* testsuite/18_support/new_aligned.cc: New test.
From-SVN: r263073
PR libstdc++/86676
* testsuite/20_util/monotonic_buffer_resource/release.cc: Allow for
buffer being misaligned and so returned pointer not being at start.
From-SVN: r262980
This is missing the synchronized_pool_resource and
unsynchronized_pool_resource classes but is otherwise complete.
This is a new implementation, not based on the existing code in
<experimental/memory_resource>, but memory_resource and
polymorphic_allocator ended up looking almost the same anyway.
The constant_init kluge in src/c++17/memory_resource.cc is apparently
due to Richard Smith and ensures that the objects are constructed during
constant initialiation phase and not destroyed (because the
constant_init destructor doesn't destroy the union member and the
storage is not reused).
* config/abi/pre/gnu.ver: Export new symbols.
* configure: Regenerate.
* include/Makefile.am: Add new <memory_resource> header.
* include/Makefile.in: Regenerate.
* include/precompiled/stdc++.h: Include <memory_resource> for C++17.
* include/std/memory_resource: New header.
(memory_resource, polymorphic_allocator, new_delete_resource)
(null_memory_resource, set_default_resource, get_default_resource)
(pool_options, monotonic_buffer_resource): Define.
* src/Makefile.am: Add c++17 directory.
* src/Makefile.in: Regenerate.
* src/c++11/Makefile.am: Fix comment.
* src/c++17/Makefile.am: Add makefile for new sub-directory.
* src/c++17/Makefile.in: Generate.
* src/c++17/memory_resource.cc: New.
(newdel_res_t, null_res_t, constant_init, newdel_res, null_res)
(default_res, new_delete_resource, null_memory_resource)
(set_default_resource, get_default_resource): Define.
* testsuite/20_util/memory_resource/1.cc: New test.
* testsuite/20_util/memory_resource/2.cc: New test.
* testsuite/20_util/monotonic_buffer_resource/1.cc: New test.
* testsuite/20_util/monotonic_buffer_resource/allocate.cc: New test.
* testsuite/20_util/monotonic_buffer_resource/deallocate.cc: New test.
* testsuite/20_util/monotonic_buffer_resource/release.cc: New test.
* testsuite/20_util/monotonic_buffer_resource/upstream_resource.cc:
New test.
* testsuite/20_util/polymorphic_allocator/1.cc: New test.
* testsuite/20_util/polymorphic_allocator/resource.cc: New test.
* testsuite/20_util/polymorphic_allocator/select.cc: New test.
* testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
Define concrete memory resource for testing.
(__gnu_test::default_resource_mgr): Define RAII helper for changing
default resource.
From-SVN: r262953
An output iterator passed as the unused first argument to __niter_wrap
might have already been invalidated, so don't copy it.
PR libstdc++/86658
* include/bits/stl_algobase.h (__niter_wrap<_Iterator>): Pass unused
parameter by reference, to avoid copying invalid iterators.
* testsuite/25_algorithms/copy/86658.cc: New test.
From-SVN: r262952
The erased_type condition is only true for code using the Library
Fundamentals TS, so assume it's less common and only check it after
checking for convertibility.
This does mean for types using erased_type the more expensive
convertibility check is done first, but such types are rare.
* include/bits/uses_allocator.h (__is_erased_or_convertible): Reorder
conditions. Add comments.
* testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error line.
* testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
* testsuite/20_util/scoped_allocator/69293_neg.cc: Likewise.
From-SVN: r262945
pmr::resource_adaptor can avoid allocating an oversized buffer and doing
manual alignment within that buffer when the wrapped allocator is known
to always meet the requested alignment. Specifically, if the allocator
is known to use malloc or new directly, then we can call the allocator
directly for any fundamental alignment.
PR libstdc++/70940
* include/experimental/memory_resource
(__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion.
(__resource_adaptor_common::__guaranteed_alignment): New helper to
give maximum alignment an allocator guarantees. Specialize for known
allocators using new and malloc.
(__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment.
(__resource_adaptor_imp::do_deallocate): Likewise.
* testsuite/experimental/memory_resource/new_delete_resource.cc:
Check that new and delete are called with expected sizes.
From-SVN: r262935
* include/std/type_traits (__is_member_object_pointer_helper): Use
__not_<is_function<_Tp>>::type instead of integral_constant.
(__is_member_function_pointer_helper): Likewise for
is_function<_Tp>::type.
(is_compund): Likewise for __not_<is_fundamental<_Tp>>::type.
(__do_is_nt_destructible_impl): Use __bool_constant and reindent.
(is_trivially_constructible): Remove redundant use of
is_constructible.
(__is_trivially_copy_assignable_impl): Remove redundant use of
is_copy_assignable.
(__is_trivially_move_assignable_impl): Remove redundant use of
is_move_assignable.
(is_trivially_destructible): Use __bool_constant.
* testsuite/20_util/is_trivially_assignable/value.cc: Add some more
tests for scalar types.
From-SVN: r262889
Use -Wabi=2 to fix warnings about -Wabi having no effect on its own.
This requires suppressing two warnings in src/c++11/debug.cc which do
not affect the library ABI.
Previously libstdc++ defaulted to --enable-werror but the -Werror flag
was not actually added unless --enable-maintainer-mode was used. This is
not documented and not the expected behaviour. This removes any special
treatment for maintainer-mode, makes -Werror depend directly on
--enable-werror, and changes the default to --enable-werror=no.
PR libstdc++/86450
* acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR.
(GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi.
* configure: Regenerate.
* configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no".
* doc/Makefile.in: Regenerate.
* fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR).
* include/Makefile.in: Regenerate.
* libsupc++/Makefile.in: Regenerate.
* po/Makefile.in: Regenerate.
* python/Makefile.in: Regenerate.
* src/Makefile.in: Regenerate.
* src/c++11/Makefile.in: Regenerate.
* src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings
from -Wabi=2 that don't affect exported symbols.
* src/c++98/Makefile.in: Regenerate.
* src/filesystem/Makefile.in: Regenerate.
* testsuite/Makefile.in: Regenerate.
From-SVN: r262824
The standard doesn't specify this partial specialization (it was
required after the changes in N2637 but then should have been removed
following LWG 1262). Its presence is observable because it causes
different results when operator< has been overloaded for a shared_ptr
specialization.
PR libstdc++/86537
* include/bits/shared_ptr.h (less<shared_ptr<_Tp>>): Remove
non-standard partial specialization.
* include/bits/shared_ptr_base.h (_Sp_less): Remove class definition.
(less<__shared_ptr<_Tp, _Lp>): Remove partial specialization.
* testsuite/20_util/shared_ptr/comparison/86537.cc: New test.
From-SVN: r262739
P0616R0 altered the effects of the <numeric> algorithms to use std::move
on the accumulator values (resolving LWG 2055). This implements the
change for C++2a, but retains the previous behaviour for older
standards.
* include/bits/stl_numeric.h (_GLIBCXX_MOVE_IF_20): Define macro to
conditionally move, according to __cplusplus value.
(accumulate, inner_product, partial_sum, adjacent_difference): Use
_GLIBCXX_MOVE_IF_20.
* testsuite/26_numerics/accumulate/lwg2055.cc: New test.
* testsuite/26_numerics/adjacent_difference/lwg2055.cc: New test.
* testsuite/26_numerics/inner_product/lwg2055.cc: New test.
* testsuite/26_numerics/partial_sum/lwg2055.cc: New test.
From-SVN: r262477
This is the last remaining piece of P0935R0. This adds a default
constructor to each of the streambuf and stream types in <sstream> so
that default construction does not use the 'explicit' constructor that
has a single, defaulted argument.
P0935R0 Eradicating unnecessarily explicit default constructors
* config/abi/pre/gnu.ver: Tighten existing patterns and export new
default constructor symbols.
* include/std/sstream (basic_stringbuf, basic_istringstream)
(basic_ostringstream, basic_stringstream): Remove default arguments
from explicit constructors taking ios_base::openmode and add separate
non-explicit default constructors.
* testsuite/27_io/basic_istringstream/cons/default.cc: New.
* testsuite/27_io/basic_ostringstream/cons/default.cc: New.
* testsuite/27_io/basic_stringstream/cons/default.cc: New.
* testsuite/27_io/basic_stringbuf/cons/char/default.cc: New.
* testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: New.
From-SVN: r262474
These tests fail when run with -D_GLIBCXX_USE_CXX11_ABI=0
* testsuite/21_strings/basic_string/cons/char/deduction.cc: XFAIL for
COW strings.
* testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
Likewise.
* testsuite/21_strings/basic_string/requirements/
explicit_instantiation/debug.cc: Likewise.
From-SVN: r262448
For COW strings the default constructor does not allocate when
_GLIBCXX_FULLY_DYNAMIC_STRING == 0, so can be noexcept. The move
constructor and swap do not allocate when the allocators are equal, so
add conditional noexcept using allocator_traits::is_always_equal.
PR libstdc++/58265
* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
[_GLIBCXX_FULLY_DYNAMIC_STRING==0] (basic_string::basic_string()):
Add GLIBCXX_NOEXCEPT.
(basic_string::operator=(basic_string&&)): Add _GLIBCXX_NOEXCEPT_IF
to depend on the allocator's is_always_equal property (LWG 2063).
(basic_string::swap(basic_string&)): Likewise.
* include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
(basic_string::swap(basic_string&)): Likewise.
* testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
Check is_nothrow_move_assignable.
* testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
Check is_nothrow_move_assignable.
* testsuite/21_strings/basic_string/cons/char/
noexcept_move_construct.cc: Likewise.
* testsuite/21_strings/basic_string/cons/wchar_t/
noexcept_move_construct.cc: Likewise.
From-SVN: r262443
In C++2a the remove, remove_if and unique members of std::list and
std::forward_list have been changed to return the number of elements
removed. This is an ABI change for the remove members and the
non-template unique members, so an abi-tag is used to give those symbols
new mangled names in C++2a mode. For the function templates the return
type is part of the mangled name so no abi-tag is needed.
* include/bits/forward_list.h (__cpp_lib_list_remove_return_type):
Define.
(forward_list::__remove_return_type): Define typedef as size_type or
void, according to __cplusplus value.
(_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
empty, according to __cplusplus value.
(forward_list::remove, forward_list::unique): Use typedef and macro
to change return type and add abi-tag for C++2a.
(forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
typedef to change return type for C++2a.
* include/bits/forward_list.tcc (_GLIBCXX20_ONLY): Define macro.
(forward_list::remove, forward_list::remove_if<Pred>)
(forward_list::unique<BinPred>): Return number of removed elements
for C++2a.
* include/bits/list.tcc (_GLIBCXX20_ONLY): Define macro.
(list::remove, list::unique, list::remove_if<Predicate>)
(list::unique<BinaryPredicate>): Return number of removed elements
for C++2a.
* include/bits/stl_list.h (__cpp_lib_list_remove_return_type): Define.
(list::__remove_return_type): Define typedef as size_type or
void, according to __cplusplus value.
(_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
empty, according to __cplusplus value.
(list::remove, list::unique): Use typedef and macro to change return
type and add abi-tag for C++2a.
(list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use
typedef to change return type for C++2a.
* include/std/version (__cpp_lib_list_remove_return_type): Define.
* testsuite/23_containers/forward_list/operations/
remove_cxx20_return.cc: New.
* testsuite/23_containers/forward_list/operations/
unique_cxx20_return.cc: New.
From-SVN: r262423
Currently only matches targets where _GLIBCXX_USE_RANDOM_TR1 is defined,
which means /dev/random and /dev/urandom are usable.
* testsuite/25_algorithms/make_heap/complexity.cc: Require effective
target for std::random_device.
* testsuite/26_numerics/random/random_device/cons/default.cc:
Likewise.
* testsuite/experimental/algorithm/sample-2.cc: Likewise.
* testsuite/experimental/algorithm/shuffle.cc: Likewise.
* testsuite/experimental/random/randint.cc: Likewise.
* testsuite/lib/libstdc++.exp
(check_effective_target_random_device): New proc.
From-SVN: r262415
The intrinsic doesn't check for allowed conversions between scalar
types, so restore the std::is_constructible check.
Also make some trivial whitespace changes.
PR libstdc++/86398
* include/std/type_traits (is_trivially_constructible): Check
is_constructible before __is_trivially_constructible.
* testsuite/20_util/is_trivially_constructible/value.cc: Add more
tests, including negative cases.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Use
zero for dg-error lineno.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
Likewise.
From-SVN: r262379
P0553R2 is not in the C++2a working draft yet, but is likely to be
approved soon. Neither proposal supports std::byte but this adds
overloads of each function for std::byte, assuming that will also get
added.
* include/Makefile.am: Add new header.
* include/Makefile.in: Regenerate.
* include/precompiled/stdc++.h: Include new header.
* include/std/bit: New header.
(__rotl, __rotr, __countl_zero, __countl_one, __countr_zero)
(__countr_one, __popcount, __ispow2, __ceil2, __floor2, __log2p1):
Define for C++14.
[!__STRICT_ANSI__] (rotl, rotr, countl_zero, countl_one, countr_zero)
(countr_one, popcount): Define for C++2a. Also overload for std::byte.
(ispow2, ceil2, floor2, log2p1): Define for C++2a.
[!__STRICT_ANSI__] (ispow2, ceil2, floor2, log2p1): Overload for
std::byte.
* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: New.
* testsuite/26_numerics/bit/bit.pow.two/floor2.cc: New.
* testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: New.
* testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: New.
* testsuite/26_numerics/bit/bitops.rot/rotl.cc: New.
* testsuite/26_numerics/bit/bitops.rot/rotr.cc: New.
* testsuite/26_numerics/bit/bitops.count/countl_one.cc: New.
* testsuite/26_numerics/bit/bitops.count/countl_zero.cc: New.
* testsuite/26_numerics/bit/bitops.count/countr_one.cc: New.
* testsuite/26_numerics/bit/bitops.count/countr_zero.cc: New.
From-SVN: r262360
Avoid creation of unnecessary basic_string objects by using a simplified
string_view type and performing comparisons on that type instead. A
temporary basic_string object is still used when the sub_match's
iterators are not contiguous, in order to get an object that the
__string_view can reference.
* include/bits/regex.h (sub_match::operator string_type): Call str().
(sub_match::compare): Use _M_str() instead of str().
(sub_match::_M_compare): New public function.
(sub_match::__string_view): New helper type.
(sub_match::_M_str): New overloaded functions to avoid creating a
string_type object when not needed.
(operator==, operator!=, operator<, operator>, operator<=, operator>=):
Use sub_match::_M_compare instead of creating string_type objects.
Fix Doxygen comments.
* include/bits/regex_compiler.h (__has_contiguous_iter): Remove.
(__is_contiguous_normal_iter): Rename to __is_contiguous_iter and
simplify.
(__enable_if_contiguous_iter, __disable_if_contiguous_iter): Use
__enable_if_t.
* include/std/type_traits (__enable_if_t): Define for C++11.
* testsuite/28_regex/sub_match/compare.cc: New.
* testsuite/util/testsuite_iterators.h (remove_cv): Add transformation
trait.
(input_iterator_wrapper): Use remove_cv for value_type argument of
std::iterator base class.
From-SVN: r262318
The additions to <experimental/random> were added in 2015 but the new
algorithms in <experimental/algorithm> were not. This adds them.
* include/experimental/algorithm (sample, shuffle): Add new overloads
using per-thread random number engine.
* testsuite/experimental/algorithm/sample.cc: Simpify and reduce
dependencies by using __gnu_test::test_container.
* testsuite/experimental/algorithm/sample-2.cc: New.
* testsuite/experimental/algorithm/shuffle.cc: New.
From-SVN: r262024
The explicit instantiation declarations for std::basic_string are
disabled for C++17 (and later) so that basic_string symbols get
implicitly instantiated in every translation unit that needs them. On
targets that don't support STB_GNU_UNIQUE this leads to multiple copies
of the empty rep symbol for COW strings. In order to detect whether a
COW string needs to deallocate its storage it compares the address with
the empty rep. When there are multiple copies of the empty rep object
the address is not unique, and so string destructors try to delete the
empty rep, which crashes.
In order to guarantee uniqueness of the _S_empty_rep_storage symbol this
patch adds an explicit instantiation declaration for just that symbol.
This means the other symbols are still implicitly instantiated in C++17
code, but for the empty rep the definition in the library gets used.
Separately, there is no need for C++17 code to implicitly instantiate
the I/O functions for strings, so this also restores the explicit
instantiation declarations for those functions.
PR libstdc++/86138
* include/bits/basic_string.tcc:
[__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
(basic_string<char>::_Rep::_S_empty_rep_storage)
(basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
instantiation declarations.
[__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
explicit instantiation declarations.
* testsuite/21_strings/basic_string/cons/char/86138.cc: New.
* testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.
From-SVN: r261873
The SSO basic_string has a non-standard insert(iterator, initializer_list)
overload, from a C++0x draft. This adds the correct overload, while also
preserving the old one so that the old symbol is still exported from the
library.
The COW basic_string doesn't have any of the C++11 changes to the insert
overloads (they all still have non-const iterator parameters and the
ones that should return an iterator still return void). This doesn't
make any change to the COW string.
PR libstdc++/83328
* acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
* config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
* configure: Regenerate.
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::insert(const_iterator, initializer_list<C>)): Add.
[_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
(basic_string::insert(iterator, initializer_list<C>)): Suppress
definition.
* include/debug/string (basic_string::insert(iterator, C)): Change
first parameter to const_iterator.
(basic_string::insert(iterator, size_type, C)): Likewise. Change
return type to iterator.
(basic_string::insert(iterator, InputIterator, InputIterator)):
Likewise.
(basic_string::insert(iterator, initializer_list<C>)): Change first
parameter to const_iterator and return type to iterator.
* src/c++11/string-inst.cc: Extend comment.
* testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
New.
* testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
New.
* testsuite/util/testsuite_abi.cc: Add new symbol version.
From-SVN: r261866
PR libstdc++/70940
* include/experimental/memory_resource (__resource_adaptor_common):
New base class.
(__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
pointer from unaligned, and vice versa.
(__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
allocated pointer to meet alignment request.
(__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
original pointer for deallocation.
(__resource_adaptor_imp::do_is_equal): Reformat.
(__resource_adaptor_imp::_S_aligned_size): Remove.
(__resource_adaptor_imp::_S_supported): Remove.
(new_delete_resource): Use __gnu_cxx::new_allocator.
* testsuite/experimental/memory_resource/resource_adaptor.cc: Test
extended alignments and use debug_allocator to check for matching
allocate/deallocate pairs.
From-SVN: r261849
Construct the program-wide resource objects using placement new. This
means they have dynamic storage duration and won't be destroyed during
termination.
PR libstdc++/70966
* include/experimental/memory_resource (__resource_adaptor_imp): Add
static assertions to enforce requirements on pointer types.
(__resource_adaptor_imp::get_allocator()): Add noexcept.
(new_delete_resource, null_memory_resource): Return address of an
object with dynamic storage duration.
(__null_memory_resource): Remove.
* testsuite/experimental/memory_resource/70966.cc: New.
From-SVN: r261818
Jonathan Wakely
François Dumont
Edward Smith-Rowland
Martin Sebor
Jakub Jelinek
Ville Voutilainen
Michele Pezzutti
Renlin Li
Joseph Myers
Marek Polacek
David Malcolm
Marc Glisse
Rainer Orth
Christophe Lyon
Sandra Loosemore
David Edelsohn
Jeremy Sawicki
Mike Crowe
Glen Joseph Fernandes