This patch addresses several issues related to the additional specializations for enable_nonlocking_formatter_optimization fomr P3235R3 proposal: * LWG4399 [1]: Apply remove_cvref_t to tuple and pair elements when checking if the direct printing optimization is enabled. * LWG4398 [2]: Disable the direct printing optimization for the standard library container adaptors: queue, priority_queue, and stack. * LWG4400 [3]: Enable the direct printing optimization only for durations that use standard arithmetic types. Conditionally enable it for hh_mm_ss and time_points based on their underlying Duration template argument. [1] https://cplusplus.github.io/LWG/issue4399 [2] https://cplusplus.github.io/LWG/issue4398 [3] https://cplusplus.github.io/LWG/issue4400 PR libstdc++/121790 libstdc++-v3/ChangeLog: * include/bits/chrono_io.h (enable_nonlocking_formatter_optimization): Adjust specializations for duration, hh_mm_ss and time_points. * include/std/format (enable_nonlocking_formatter_optimization): Apply remove_cvref_t on pair and tuple elements. * include/std/queue (enable_nonlocking_formatter_optimization): Change specialization value to false. * include/std/stack (enable_nonlocking_formatter_optimization): Change specialization value to false. * testsuite/std/format/ranges/adaptors.cc: Adjusted tests. * testsuite/std/format/tuple.cc: Adjusted tests. * testsuite/std/time/format/nonlocking.cc: Adjusted tests. Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
This patch implements additional enable_nonlocking_formatter_optimization specializations listed in P3235R3. PR libstdc++/121790 libstdc++-v3/ChangeLog: * include/bits/chrono_io.h (enable_nonlocking_formatter_optimization): Define specializations for chrono types. * include/bits/version.def (print): Bump. * include/bits/version.h: Regenerate. * include/std/format (enable_nonlocking_formatter_optimization): Define specializations for pair, tuple and ranges. * include/std/queue (enable_nonlocking_formatter_optimization): Define specializations for queue and priority_queue. * include/std/stack (enable_nonlocking_formatter_optimization): Define specialization for stack. * include/std/stacktrace (enable_nonlocking_formatter_optimization): Define specialization for basic_stacktrace and stacktrace_entry. * include/std/thread (enable_nonlocking_formatter_optimization): Define specialization for thread::id. * include/std/vector (enable_nonlocking_formatter_optimization): Define specialization for vector<bool>::reference. * testsuite/23_containers/vector/bool/format.cc: Test value of enable_nonlocking_formatter_optimization. * testsuite/30_threads/thread/id/output.cc: Likewise. * testsuite/std/format/ranges/adaptors.cc: Likewise. * testsuite/std/format/ranges/formatter.cc: Likewise. * testsuite/std/format/tuple.cc: Likewise. * testsuite/std/time/format/empty_spec.cc: Extract Rep class to custom_rep.h. * testsuite/std/time/format/custom_rep.h: Extracted from empty_spec.cc. * testsuite/std/time/format/nonlocking.cc: New test. Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
This patch implements formatter specializations for standard container adaptors (queue, priority_queue and stack) from P2286R8. To be able to access the protected `c` member, the adaptors befriend corresponding formatter specializations. Note that such specialization may be disable if the container is formattable, in such case specializations are unharmful. As in the case of previous commits, the signatures of the user-facing parse and format methods of the provided formatters deviate from the standard by constraining types of parameters: * _CharT is constrained __formatter::__char * basic_format_parse_context<_CharT> for parse argument * basic_format_context<_Out, _CharT> for format second argument The standard specifies all above as unconstrained types. In particular _CharT constrain, allow us to befriend all allowed specializations. Furthermore the standard specifies these formatters as delegating to formatter<ranges::ref_view<const? _Container>, charT>, which in turn delegates to range_formatter. This patch avoids one level of indirection, and dependency of ranges::ref_view. This is technically observable if user specializes formatter<std::ref_view<PD>> where PD is program defined container, but I do not think this is the case worth extra indirection. This patch also moves the formattable and it's dependencies to the formatfwd.h, so it can be used in adapters formatters, without including format header. The definition of _Iter_for is changed from alias to denoting back_insert_iterator<basic_string<_CharT>>, to struct with type nested typedef that points to same type, that is forward declared. PR libstdc++/109162 libstdc++-v3/ChangeLog: * include/bits/formatfwd.h (__format::__parsable_with) (__format::__formattable_with, __format::__formattable_impl) (__format::__has_debug_format, __format::__const_formattable_range) (__format::__maybe_const_range, __format::__maybe_const) (std::formattable): Moved from std/format. (__format::Iter_for, std::range_formatter): Forward declare. * include/bits/stl_queue.h (std::formatter): Forward declare. (std::queue, std::priority_queue): Befriend formatter specializations. * include/bits/stl_stack.h (std::formatter): Forward declare. (std::stack): Befriend formatter specializations. * include/std/format (__format::_Iter_for): Define as struct with (__format::__parsable_with, __format::__formattable_with) (__format::__formattable_impl, __format::__has_debug_format) (_format::__const_formattable_range, __format::__maybe_const_range) (__format::__maybe_const, std::formattable): Moved to bits/formatfwd.h. (std::range_formatter): Remove default argument specified in declaration in bits/formatfwd.h. * include/std/queue: Include bits/version.h before bits/stl_queue.h. (formatter<queue<_Tp, _Container, _Compare>, _CharT>) (formatter<priority_queue<_Tp, _Container, _Compare>, _CharT>): Define. * include/std/stack: Include bits/version.h before bits/stl_stack.h (formatter<stack<_Tp, _Container, _Compare>, _CharT>): Define. * testsuite/std/format/ranges/adaptors.cc: New test. Reviewed-by: Jonathan Wakely <jwakely@redhat.com> Signed-off-by: Tomasz Kamiński <tkaminsk@redhat.com>
This is final piece of P1206R7, adding a feature test macros, as range constructors and member operations are now implemented for all containers and adaptors. For consistency with the proposal, all new container operations and helpers are now defined if __glibcxx_containers_ranges, instead of __glibcxx_ranges_to_container. PR libstdc++/111055 libstdc++-v3/ChangeLog: * include/bits/version.def (containers_ranges): Define. * include/bits/version.h: Regenerate. * include/bits/ranges_base.h (__detail::__container_compatible_range) (__detail::__range_to_alloc_type, __detail::__range_mapped_type) (__detail::__range_key_type): Depend on __glibcxx_containers_ranges instead of __glibcxx_ranges_to_container. * include/bits/basic_string.h: Replace __glibcxx_ranges_to_container with __glibcxx_containers_ranges. * include/bits/cow_string.h: Likewise. * include/bits/deque.tcc: Likewise. * include/bits/forward_list.h: Likewise. * include/bits/stl_bvector.h: Likewise. * include/bits/stl_deque.h: Likewise. * include/bits/stl_list.h: Likewise. * include/bits/stl_map.h: Likewise. * include/bits/stl_multimap.h: Likewise. * include/bits/stl_multiset.h: Likewise. * include/bits/stl_queue.h: Likewise. * include/bits/stl_set.h: Likewise. * include/bits/stl_stack.h: Likewise. * include/bits/stl_vector.h: Likewise. * include/bits/unordered_map.h: Likewise. * include/bits/unordered_set.h: Likewise. * include/bits/vector.tcc: Likewise. * include/debug/deque: Likewise. * include/debug/forward_list: Likewise. * include/debug/list: Likewise. * include/debug/map.h: Likewise. * include/debug/multimap.h: Likewise. * include/debug/multiset.h: Likewise. * include/debug/set.h: Likewise. * include/debug/unordered_map: Likewise. * include/debug/unordered_set: Likewise. * include/debug/vector: Likewise. * include/std/deque: Provide __cpp_lib_containers_ranges. * include/std/forward_list: Likewise. * include/std/list: Likewise. * include/std/map: Likewise. * include/std/queue: Likewise. * include/std/set: Likewise. * include/std/stack: Likewise. * include/std/string: Likewise. * include/std/unordered_map: Likewise. * include/std/unordered_set: Likewise. * include/std/vector: Likewise. * testsuite/21_strings/basic_string/cons/from_range.cc: Test for value __cpp_lib_containers_ranges. * testsuite/23_containers/deque/cons/from_range.cc: Likewise. * testsuite/23_containers/forward_list/cons/from_range.cc: Likewise. * testsuite/23_containers/list/cons/from_range.cc: Likewise. * testsuite/23_containers/map/cons/from_range.cc: Likewise. * testsuite/23_containers/multimap/cons/from_range.cc: Likewise. * testsuite/23_containers/multiset/cons/from_range.cc: Likewise. * testsuite/23_containers/priority_queue/cons_from_range.cc: Likewise. * testsuite/23_containers/queue/cons_from_range.cc: Likewise. * testsuite/23_containers/set/cons/from_range.cc: Likewise. * testsuite/23_containers/stack/cons_from_range.cc: Likewise. * testsuite/23_containers/unordered_map/cons/from_range.cc: Likewise. * testsuite/23_containers/unordered_multimap/cons/from_range.cc: Likewise. * testsuite/23_containers/unordered_multiset/cons/from_range.cc: Likewise. * testsuite/23_containers/unordered_set/cons/from_range.cc: Likewise. * testsuite/23_containers/vector/bool/cons/from_range.cc: Likewise. * testsuite/23_containers/vector/cons/from_range.cc: Likewise. Reviewed-by: Jonathan Wakely <jwakely@redhat.com> Signed-off-by: Tomasz Kamiński <tkaminsk@redhat.com>
In r15-3714-gd3a7302ec5985a I added -Wsystem-headers to the libstdc++ build flags to help catch problems in the library. This patch takes a different approach, of disabling the #pragma system_header unless _GLIBCXX_SYSHDR is defined. As a result, the testsuites will treat them as non-system-headers to get better warning coverage during regression testing of both gcc and libstdc++, not just when building the library. My rationale for the #ifdef instead of just removing the #pragma is the three G++ tests that want to test libstdc++ system header behavior, so we need a way to select it. This doesn't affect installed libraries, as they get their system-header status from the lookup path. But testsuite_flags --build-includes gives -I directives rather than -isystem. This patch doesn't change the headers in config/ because I'm not compiling with most of them, so won't see any warnings that need fixing. Adjusting them could happen later, or we can not bother. libstdc++-v3/ChangeLog: * acinclude.m4 (WARN_FLAGS): Remove -Wsystem-headers. * configure: Regenerate. * include/bits/algorithmfwd.h: #ifdef out #pragma GCC system_header. * include/bits/atomic_base.h * include/bits/atomic_futex.h * include/bits/atomic_timed_wait.h * include/bits/atomic_wait.h * include/bits/basic_ios.h * include/bits/basic_string.h * include/bits/boost_concept_check.h * include/bits/char_traits.h * include/bits/charconv.h * include/bits/chrono.h * include/bits/chrono_io.h * include/bits/codecvt.h * include/bits/concept_check.h * include/bits/cpp_type_traits.h * include/bits/elements_of.h * include/bits/enable_special_members.h * include/bits/erase_if.h * include/bits/forward_list.h * include/bits/functional_hash.h * include/bits/gslice.h * include/bits/gslice_array.h * include/bits/hashtable.h * include/bits/indirect_array.h * include/bits/invoke.h * include/bits/ios_base.h * include/bits/iterator_concepts.h * include/bits/locale_classes.h * include/bits/locale_facets.h * include/bits/locale_facets_nonio.h * include/bits/localefwd.h * include/bits/mask_array.h * include/bits/max_size_type.h * include/bits/memory_resource.h * include/bits/memoryfwd.h * include/bits/move_only_function.h * include/bits/node_handle.h * include/bits/ostream_insert.h * include/bits/out_ptr.h * include/bits/parse_numbers.h * include/bits/postypes.h * include/bits/quoted_string.h * include/bits/range_access.h * include/bits/ranges_base.h * include/bits/refwrap.h * include/bits/sat_arith.h * include/bits/semaphore_base.h * include/bits/slice_array.h * include/bits/std_abs.h * include/bits/std_function.h * include/bits/std_mutex.h * include/bits/std_thread.h * include/bits/stl_iterator_base_funcs.h * include/bits/stl_iterator_base_types.h * include/bits/stl_tree.h * include/bits/stream_iterator.h * include/bits/streambuf_iterator.h * include/bits/stringfwd.h * include/bits/this_thread_sleep.h * include/bits/unique_lock.h * include/bits/uses_allocator_args.h * include/bits/utility.h * include/bits/valarray_after.h * include/bits/valarray_array.h * include/bits/valarray_before.h * include/bits/version.h * include/c_compatibility/fenv.h * include/c_compatibility/inttypes.h * include/c_compatibility/stdint.h * include/decimal/decimal.h * include/experimental/bits/net.h * include/experimental/bits/shared_ptr.h * include/ext/aligned_buffer.h * include/ext/alloc_traits.h * include/ext/atomicity.h * include/ext/concurrence.h * include/ext/numeric_traits.h * include/ext/pod_char_traits.h * include/ext/pointer.h * include/ext/stdio_filebuf.h * include/ext/stdio_sync_filebuf.h * include/ext/string_conversions.h * include/ext/type_traits.h * include/ext/vstring.h * include/ext/vstring_fwd.h * include/ext/vstring_util.h * include/parallel/algorithmfwd.h * include/parallel/numericfwd.h * include/tr1/functional_hash.h * include/tr1/hashtable.h * include/tr1/random.h * libsupc++/exception.h * libsupc++/hash_bytes.h * include/bits/basic_ios.tcc * include/bits/basic_string.tcc * include/bits/fstream.tcc * include/bits/istream.tcc * include/bits/locale_classes.tcc * include/bits/locale_facets.tcc * include/bits/locale_facets_nonio.tcc * include/bits/ostream.tcc * include/bits/sstream.tcc * include/bits/streambuf.tcc * include/bits/string_view.tcc * include/bits/version.tpl * include/experimental/bits/string_view.tcc * include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp * include/ext/random.tcc * include/ext/vstring.tcc * include/tr2/bool_set.tcc * include/tr2/dynamic_bitset.tcc * include/bits/c++config * include/c/cassert * include/c/cctype * include/c/cerrno * include/c/cfloat * include/c/ciso646 * include/c/climits * include/c/clocale * include/c/cmath * include/c/csetjmp * include/c/csignal * include/c/cstdarg * include/c/cstddef * include/c/cstdio * include/c/cstdlib * include/c/cstring * include/c/ctime * include/c/cuchar * include/c/cwchar * include/c/cwctype * include/c_global/cassert * include/c_global/ccomplex * include/c_global/cctype * include/c_global/cerrno * include/c_global/cfenv * include/c_global/cfloat * include/c_global/cinttypes * include/c_global/ciso646 * include/c_global/climits * include/c_global/clocale * include/c_global/cmath * include/c_global/csetjmp * include/c_global/csignal * include/c_global/cstdalign * include/c_global/cstdarg * include/c_global/cstdbool * include/c_global/cstddef * include/c_global/cstdint * include/c_global/cstdio * include/c_global/cstdlib * include/c_global/cstring * include/c_global/ctgmath * include/c_global/ctime * include/c_global/cuchar * include/c_global/cwchar * include/c_global/cwctype * include/c_std/cassert * include/c_std/cctype * include/c_std/cerrno * include/c_std/cfloat * include/c_std/ciso646 * include/c_std/climits * include/c_std/clocale * include/c_std/cmath * include/c_std/csetjmp * include/c_std/csignal * include/c_std/cstdarg * include/c_std/cstddef * include/c_std/cstdio * include/c_std/cstdlib * include/c_std/cstring * include/c_std/ctime * include/c_std/cuchar * include/c_std/cwchar * include/c_std/cwctype * include/debug/array * include/debug/bitset * include/debug/deque * include/debug/forward_list * include/debug/list * include/debug/map * include/debug/set * include/debug/string * include/debug/unordered_map * include/debug/unordered_set * include/debug/vector * include/decimal/decimal * include/experimental/algorithm * include/experimental/any * include/experimental/array * include/experimental/buffer * include/experimental/chrono * include/experimental/contract * include/experimental/deque * include/experimental/executor * include/experimental/filesystem * include/experimental/forward_list * include/experimental/functional * include/experimental/internet * include/experimental/io_context * include/experimental/iterator * include/experimental/list * include/experimental/map * include/experimental/memory * include/experimental/memory_resource * include/experimental/net * include/experimental/netfwd * include/experimental/numeric * include/experimental/propagate_const * include/experimental/ratio * include/experimental/regex * include/experimental/scope * include/experimental/set * include/experimental/socket * include/experimental/string * include/experimental/string_view * include/experimental/synchronized_value * include/experimental/system_error * include/experimental/timer * include/experimental/tuple * include/experimental/type_traits * include/experimental/unordered_map * include/experimental/unordered_set * include/experimental/vector * include/ext/algorithm * include/ext/cmath * include/ext/functional * include/ext/iterator * include/ext/memory * include/ext/numeric * include/ext/random * include/ext/rb_tree * include/ext/rope * include/parallel/algorithm * include/std/algorithm * include/std/any * include/std/array * include/std/atomic * include/std/barrier * include/std/bit * include/std/bitset * include/std/charconv * include/std/chrono * include/std/codecvt * include/std/complex * include/std/concepts * include/std/condition_variable * include/std/coroutine * include/std/deque * include/std/execution * include/std/expected * include/std/filesystem * include/std/format * include/std/forward_list * include/std/fstream * include/std/functional * include/std/future * include/std/generator * include/std/iomanip * include/std/ios * include/std/iosfwd * include/std/iostream * include/std/istream * include/std/iterator * include/std/latch * include/std/limits * include/std/list * include/std/locale * include/std/map * include/std/memory * include/std/memory_resource * include/std/mutex * include/std/numbers * include/std/numeric * include/std/optional * include/std/ostream * include/std/print * include/std/queue * include/std/random * include/std/ranges * include/std/ratio * include/std/regex * include/std/scoped_allocator * include/std/semaphore * include/std/set * include/std/shared_mutex * include/std/span * include/std/spanstream * include/std/sstream * include/std/stack * include/std/stacktrace * include/std/stdexcept * include/std/streambuf * include/std/string * include/std/string_view * include/std/syncstream * include/std/system_error * include/std/text_encoding * include/std/thread * include/std/tuple * include/std/type_traits * include/std/typeindex * include/std/unordered_map * include/std/unordered_set * include/std/utility * include/std/valarray * include/std/variant * include/std/vector * include/std/version * include/tr1/array * include/tr1/cfenv * include/tr1/cinttypes * include/tr1/cmath * include/tr1/complex * include/tr1/cstdbool * include/tr1/cstdint * include/tr1/cstdio * include/tr1/cstdlib * include/tr1/cwchar * include/tr1/cwctype * include/tr1/functional * include/tr1/memory * include/tr1/random * include/tr1/regex * include/tr1/tuple * include/tr1/type_traits * include/tr1/unordered_map * include/tr1/unordered_set * include/tr1/utility * include/tr2/bool_set * include/tr2/dynamic_bitset * include/tr2/type_traits * libsupc++/atomic_lockfree_defines.h * libsupc++/compare * libsupc++/cxxabi.h * libsupc++/cxxabi_forced.h * libsupc++/cxxabi_init_exception.h * libsupc++/exception * libsupc++/initializer_list * libsupc++/new * libsupc++/typeinfo: Likewise. * testsuite/20_util/ratio/operations/ops_overflow_neg.cc * testsuite/23_containers/array/tuple_interface/get_neg.cc * testsuite/23_containers/vector/cons/destructible_debug_neg.cc * testsuite/24_iterators/operations/prev_neg.cc * testsuite/ext/type_traits/add_unsigned_floating_neg.cc * testsuite/ext/type_traits/add_unsigned_integer_neg.cc * testsuite/ext/type_traits/remove_unsigned_floating_neg.cc * testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Adjust line numbers. gcc/testsuite/ChangeLog * g++.dg/analyzer/fanalyzer-show-events-in-system-headers-default.C * g++.dg/analyzer/fanalyzer-show-events-in-system-headers-no.C * g++.dg/diagnostic/disable.C: #define _GLIBCXX_SYSHDR.
This change moves the definitions of feature test macros (or strictly speaking, the requests for <bits/version.h> to define them) so that only standard headers define them. For example, <bits/shared_ptr.h> will no longer define macros related to std::shared_ptr, only <memory> and <version> will define them. This means that __cpp_lib_shared_ptr_arrays will not be defined by <future> or by other headers that include <bits/shared_ptr.h>. It will only be defined when <memory> has been included. This will discourage users from relying on transitive includes. As a result, internal headers that need to query the macros should use the internal macros like __glibcxx_shared_ptr_arrays instead of __cpp_lib_shared_ptr_arrays, as those internal macros are defined by the internal headers after icluding <bits/version.h>. There are some exceptions to this rule, because __cpp_lib_is_constant_evaluated is defined by bits/c++config.h and so is available everywhere, and __cpp_lib_three_way_comparison is defined by <compare> which several headers are explicitly specified to include, so its macro is guaranteed to be usable too. N.B. not many internal headers actually need an explicit include of <bits/version.h>, because most of them include <type_traits> and so get all the __glibcxx_foo internal macros from there. libstdc++-v3/ChangeLog: * include/bits/algorithmfwd.h: Do not define standard feature test macro here. * include/bits/align.h: Likewise. Test internal macros instead of standard macros. * include/bits/alloc_traits.h: Likewise. * include/bits/allocator.h: Likewise. * include/bits/atomic_base.h: Likewise. * include/bits/atomic_timed_wait.h: Likewise. * include/bits/atomic_wait.h: Likewise. * include/bits/basic_string.h: Likewise. * include/bits/basic_string.tcc: Likewise. * include/bits/char_traits.h: Likewise. * include/bits/chrono.h: Likewise. * include/bits/cow_string.h: Likewise. * include/bits/forward_list.h: Likewise. * include/bits/hashtable.h: Likewise. * include/bits/ios_base.h: Likewise. * include/bits/memory_resource.h: Likewise. * include/bits/move.h: Likewise. * include/bits/move_only_function.h: Likewise. * include/bits/node_handle.h: Likewise. * include/bits/ptr_traits.h: Likewise. * include/bits/range_access.h: Likewise. * include/bits/ranges_algo.h: Likewise. * include/bits/ranges_cmp.h: Likewise. * include/bits/ranges_util.h: Likewise. * include/bits/semaphore_base.h: Likewise. * include/bits/shared_ptr.h: Likewise. * include/bits/shared_ptr_atomic.h: Likewise. * include/bits/shared_ptr_base.h: Likewise. * include/bits/stl_algo.h: Likewise. * include/bits/stl_algobase.h: Likewise. * include/bits/stl_function.h: Likewise. * include/bits/stl_iterator.h: Likewise. * include/bits/stl_list.h: Likewise. * include/bits/stl_map.h: Likewise. * include/bits/stl_pair.h: Likewise. * include/bits/stl_queue.h: Likewise. * include/bits/stl_stack.h: Likewise. * include/bits/stl_tree.h: Likewise. * include/bits/stl_uninitialized.h: Likewise. * include/bits/stl_vector.h: Likewise. * include/bits/unique_ptr.h: Likewise. * include/bits/unordered_map.h: Likewise. * include/bits/uses_allocator_args.h: Likewise. * include/bits/utility.h: Likewise. * include/bits/erase_if.h: Add comment. * include/std/algorithm: Define standard feature test macros here. * include/std/atomic: Likewise. * include/std/array: Likewise. * include/std/chrono: Likewise. * include/std/condition_variable: Likewise. * include/std/deque: Likewise. * include/std/format: Likewise. * include/std/functional: Likewise. * include/std/forward_list: Likewise. * include/std/ios: Likewise. * include/std/iterator: Likewise. * include/std/list: Likewise. * include/std/map: Likewise. * include/std/memory: Likewise. * include/std/numeric: Likewise. * include/std/queue: Likewise. * include/std/ranges: Likewise. * include/std/regex: Likewise. * include/std/set: Likewise. * include/std/stack: Likewise. * include/std/stop_token: Likewise. * include/std/string: Likewise. * include/std/string_view: * include/std/tuple: Likewise. * include/std/unordered_map: * include/std/unordered_set: * include/std/utility: Likewise. * include/std/vector: Likewise. * include/std/scoped_allocator: Query internal macros instead of standard macros.
PR libstdc++/103626 - _GLIBCXX_HOSTED should respect -ffreestanding Co-authored-by: Jonathan Wakely <jwakely@redhat.com> libstdc++-v3/ChangeLog: PR libstdc++/103626 * include/Makefile.am: Add new header. * include/Makefile.in: Regenerate. * include/bits/requires_hosted.h: New header. * include/experimental/algorithm: Include <bits/requires_hosted.h>. * include/experimental/any: Likewise. * include/experimental/array: Likewise. * include/experimental/buffer: Likewise. * include/experimental/chrono: Likewise. * include/experimental/deque: Likewise. * include/experimental/executor: Likewise. * include/experimental/filesystem: Likewise. * include/experimental/forward_list: Likewise. * include/experimental/functional: Likewise. * include/experimental/internet: Likewise. * include/experimental/io_context: Likewise. * include/experimental/iterator: Likewise. * include/experimental/list: Likewise. * include/experimental/map: Likewise. * include/experimental/memory: Likewise. * include/experimental/memory_resource: Likewise. * include/experimental/net: Likewise. * include/experimental/netfwd: Likewise. * include/experimental/numeric: Likewise. * include/experimental/optional: Likewise. * include/experimental/propagate_const: Likewise. * include/experimental/random: Likewise. * include/experimental/ratio: Likewise. * include/experimental/regex: Likewise. * include/experimental/scope: Likewise. * include/experimental/set: Likewise. * include/experimental/simd: Likewise. * include/experimental/socket: Likewise. * include/experimental/source_location: Likewise. * include/experimental/string: Likewise. * include/experimental/string_view: Likewise. * include/experimental/system_error: Likewise. * include/experimental/timer: Likewise. * include/experimental/tuple: Likewise. * include/experimental/unordered_map: Likewise. * include/experimental/unordered_set: Likewise. * include/experimental/utility: Likewise. * include/experimental/vector: Likewise. * include/std/barrier: Likewise. * include/std/chrono: Likewise. * include/std/condition_variable: Likewise. * include/std/deque: Likewise. * include/std/execution: Likewise. * include/std/filesystem: Likewise. * include/std/forward_list: Likewise. * include/std/fstream: Likewise. * include/std/future: Likewise. * include/std/iomanip: Likewise. * include/std/ios: Likewise. * include/std/iosfwd: Likewise. * include/std/iostream: Likewise. * include/std/istream: Likewise. * include/std/latch: Likewise. * include/std/list: Likewise. * include/std/locale: Likewise. * include/std/map: Likewise. * include/std/memory_resource: Likewise. * include/std/mutex: Likewise. * include/std/ostream: Likewise. * include/std/queue: Likewise. * include/std/random: Likewise. * include/std/regex: Likewise. * include/std/semaphore: Likewise. * include/std/set: Likewise. * include/std/shared_mutex: Likewise. * include/std/spanstream: Likewise. * include/std/sstream: Likewise. * include/std/stack: Likewise. * include/std/stacktrace: Likewise. * include/std/stop_token: Likewise. * include/std/streambuf: Likewise. * include/std/string: Likewise. * include/std/syncstream: Likewise. * include/std/system_error: Likewise. * include/std/thread: Likewise. * include/std/unordered_map: Likewise. * include/std/unordered_set: Likewise. * include/std/valarray: Likewise. * include/std/vector: Likewise. * include/tr1/array: Likewise. * include/tr1/ccomplex: Likewise. * include/tr1/cctype: Likewise. * include/tr1/cfenv: Likewise. * include/tr1/cfloat: Likewise. * include/tr1/cinttypes: Likewise. * include/tr1/climits: Likewise. * include/tr1/cmath: Likewise. * include/tr1/complex: Likewise. * include/tr1/complex.h: Likewise. * include/tr1/cstdarg: Likewise. * include/tr1/cstdbool: Likewise. * include/tr1/cstdint: Likewise. * include/tr1/cstdio: Likewise. * include/tr1/cstdlib: Likewise. * include/tr1/ctgmath: Likewise. * include/tr1/ctime: Likewise. * include/tr1/ctype.h: Likewise. * include/tr1/cwchar: Likewise. * include/tr1/cwctype: Likewise. * include/tr1/fenv.h: Likewise. * include/tr1/float.h: Likewise. * include/tr1/functional: Likewise. * include/tr1/inttypes.h: Likewise. * include/tr1/limits.h: Likewise. * include/tr1/math.h: Likewise. * include/tr1/memory: Likewise. * include/tr1/random: Likewise. * include/tr1/regex: Likewise. * include/tr1/stdarg.h: Likewise. * include/tr1/stdbool.h: Likewise. * include/tr1/stdint.h: Likewise. * include/tr1/stdio.h: Likewise. * include/tr1/stdlib.h: Likewise. * include/tr1/tgmath.h: Likewise. * include/tr1/tuple: Likewise. * include/tr1/type_traits: Likewise. * include/tr1/unordered_map: Likewise. * include/tr1/unordered_set: Likewise. * include/tr1/utility: Likewise. * include/tr1/wchar.h: Likewise. * include/tr1/wctype.h: Likewise. * include/c_global/cmath: Likewise. * include/ext/algorithm: Include <bits/requires_hosted.h>. * include/ext/bitmap_allocator.h: Likewise. * include/ext/cmath: Likewise. * include/ext/codecvt_specializations.h: Likewise. * include/ext/debug_allocator.h: Likewise. * include/ext/enc_filebuf.h: Likewise. * include/ext/extptr_allocator.h: Likewise. * include/ext/functional: Likewise. * include/ext/malloc_allocator.h: Likewise. * include/ext/memory: Likewise. * include/ext/mt_allocator.h: Likewise. * include/ext/new_allocator.h: Likewise. * include/ext/numeric: Likewise. * include/ext/pod_char_traits.h: Likewise. * include/ext/pool_allocator.h: Likewise. * include/ext/random: Likewise. * include/ext/random.tcc: Likewise. * include/ext/rb_tree: Likewise. * include/ext/rc_string_base.h: Likewise. * include/ext/rope: Likewise. * include/ext/ropeimpl.h: Likewise. * include/ext/slist: Likewise. * include/ext/sso_string_base.h: Likewise. * include/ext/stdio_filebuf.h: Likewise. * include/ext/stdio_sync_filebuf.h: Likewise. * include/ext/string_conversions.h: Likewise. * include/ext/throw_allocator.h: Likewise. * include/ext/vstring.h: Likewise. * include/ext/vstring.tcc: Likewise. * include/ext/vstring_fwd.h: Likewise. * include/ext/vstring_util.h: Likewise. * include/std/charconv: Likewise. (__cpp_lib_to_chars): Do not define for freestanding. * include/std/version: Adjust which macros get defined in freestanding. * include/ext/pointer.h [!_GLIBCXX_HOSTED]: Omit iostream functionality from freestanding. * include/std/algorithm [!_GLIBCXX_HOSTED]: Omit PSTL algos. * include/std/memory [!_GLIBCXX_HOSTED]: Omit <bits/stl_tempbuf.h> in freestanding * include/bits/algorithmfwd.h [!_GLIBCXX_HOSTED]: Omit leftover random_shuffle and stable_partition definition. * include/bits/stl_algo.h [!_GLIBCXX_HOSTED]: Omit random_shuffle and stable_partition from freestanding. * include/bits/ranges_algo.h [!_GLIBCXX_HOSTED]: Omit stable_partition from freestanding. * include/bits/concept_check.h: Remove needless HOSTED check. * include/std/iterator: Include <bits/ranges_base.h>. * include/std/numeric (__cpp_lib_parallel_algorithms): Do not define for freestanding. * include/std/functional (__cpp_lib_boyer_moore_searcher): Likewise. * testsuite/lib/prune.exp: Match error for hosted-only libstdc++ tests.