libstdc++: Mark headers that must be hosted as such [PR103626]

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.

1 files changed, 50 insertions, 50 deletions

diff --git a/libstdc++-v3/include/std/version b/libstdc++-v3/include/std/version
index 3fd5182..397a4aa 100644
--- a/libstdc++-v3/include/std/version
+++ b/libstdc++-v3/include/std/version
@@ -46,11 +46,11 @@
 
 #if __cplusplus >= 201103L
 // c++11
+#define __cpp_lib_allocator_traits_is_always_equal 201411L
 #define __cpp_lib_is_null_pointer 201309L
 #define __cpp_lib_result_of_sfinae 201210L
 
 #if _GLIBCXX_HOSTED
-# define __cpp_lib_allocator_traits_is_always_equal 201411L
 #if __cplusplus <= 201703L // N.B. updated value in C++20
 # define __cpp_lib_shared_ptr_arrays 201611L
 #endif
@@ -73,35 +73,38 @@
 #if __cpp_impl_coroutine
 # define __cpp_lib_coroutine 201902L
 #endif
+#define __cpp_lib_exchange_function 201304L
+#define __cpp_lib_integer_sequence 201304L
 #define __cpp_lib_integral_constant_callable 201304L
 #define __cpp_lib_is_final 201402L
+#define __cpp_lib_make_reverse_iterator 201402L
+#ifndef _GLIBCXX_DEBUG // PR libstdc++/70303
+# define __cpp_lib_null_iterators 201304L
+#endif
 #define __cpp_lib_transformation_trait_aliases 201304L
+#define __cpp_lib_transparent_operators 201510L
+#define __cpp_lib_tuple_element_t 201402L
+#define __cpp_lib_tuples_by_type 201304L
 
 #if _GLIBCXX_HOSTED
 # define __cpp_lib_chrono_udls 201304L
 # define __cpp_lib_complex_udls 201309L
-# define __cpp_lib_exchange_function 201304L
 # define __cpp_lib_generic_associative_lookup 201304L
-# define __cpp_lib_integer_sequence 201304L
-# define __cpp_lib_make_reverse_iterator 201402L
 # define __cpp_lib_make_unique 201304L
-# ifndef _GLIBCXX_DEBUG // PR libstdc++/70303
-#  define __cpp_lib_null_iterators 201304L
-# endif
 # define __cpp_lib_quoted_string_io 201304L
 # define __cpp_lib_robust_nonmodifying_seq_ops 201304L
 # ifdef _GLIBCXX_HAS_GTHREADS
 #  define __cpp_lib_shared_timed_mutex 201402L
 # endif
 # define __cpp_lib_string_udls 201304L
-# define __cpp_lib_transparent_operators 201510L
-# define __cpp_lib_tuple_element_t 201402L
-# define __cpp_lib_tuples_by_type 201304L
 #endif
 
 #if __cplusplus >= 201703L
 // c++17
 #define __cpp_lib_addressof_constexpr 201603L
+#define __cpp_lib_any 201606L
+#define __cpp_lib_apply 201603L
+#define __cpp_lib_as_const 201510L
 #define __cpp_lib_atomic_is_always_lock_free 201603L
 #define __cpp_lib_bool_constant 201505L
 #define __cpp_lib_byte 201603L
@@ -111,6 +114,7 @@
 #ifdef __GCC_DESTRUCTIVE_SIZE
 # define __cpp_lib_hardware_interference_size 201703L
 #endif
+#define __cpp_lib_invoke 201411L
 #ifdef _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE
 # define __cpp_lib_is_aggregate 201703L
 #endif
@@ -120,17 +124,23 @@
 # define __cpp_lib_launder 201606L
 #endif
 #define __cpp_lib_logical_traits 201510L
+#define __cpp_lib_make_from_tuple 201606L
+#define __cpp_lib_not_fn 201603L
+#if __cplusplus == 201703L // N.B. updated value in C++20
+# define __cpp_lib_optional 201606L
+#endif
 #define __cpp_lib_type_trait_variable_templates 201510L
 #define __cpp_lib_uncaught_exceptions 201411L
+#if !(__cpp_concepts >= 202002L && __cpp_constexpr >= 201811L)
+// N.B. updated value in C++20
+# define __cpp_lib_variant 202102L
+#endif
 #define __cpp_lib_void_t 201411L
 
 #if _GLIBCXX_HOSTED
-#define __cpp_lib_any 201606L
-#define __cpp_lib_apply 201603L
 #if __cplusplus == 201703L // N.B. updated value in C++20
 # define __cpp_lib_array_constexpr 201803L
 #endif
-#define __cpp_lib_as_const 201510L
 #define __cpp_lib_boyer_moore_searcher 201603L
 #define __cpp_lib_chrono 201611L
 #define __cpp_lib_clamp 201603L
@@ -146,9 +156,7 @@
 #define __cpp_lib_gcd 201606L
 #define __cpp_lib_gcd_lcm 201606L
 #define __cpp_lib_hypot 201603L
-#define __cpp_lib_invoke 201411L
 #define __cpp_lib_lcm 201606L
-#define __cpp_lib_make_from_tuple 201606L
 #define __cpp_lib_map_try_emplace 201411L
 #define __cpp_lib_math_special_functions 201603L
 #ifdef _GLIBCXX_HAS_GTHREADS
@@ -158,10 +166,6 @@
 #endif
 #define __cpp_lib_node_extract 201606L
 #define __cpp_lib_nonmember_container_access 201411L
-#define __cpp_lib_not_fn 201603L
-#if __cplusplus == 201703L // N.B. updated value in C++20
-# define __cpp_lib_optional 201606L
-#endif
 #define __cpp_lib_parallel_algorithm 201603L
 #define __cpp_lib_raw_memory_algorithms 201606L
 #define __cpp_lib_sample 201603L
@@ -176,18 +180,16 @@
 # define __cpp_lib_to_chars 201611L
 #endif
 #define __cpp_lib_unordered_map_try_emplace 201411L
-#if !(__cpp_concepts >= 202002L && __cpp_constexpr >= 201811L)
-// N.B. updated value in C++20
-# define __cpp_lib_variant 202102L
-#endif
 #endif
 
 #if __cplusplus >= 202002L
 // c++20
+#define __cpp_lib_assume_aligned 201811L
 #define __cpp_lib_atomic_flag_test 201907L
 #define __cpp_lib_atomic_float 201711L
 #define __cpp_lib_atomic_ref 201806L
 #define __cpp_lib_atomic_value_initialization 201911L
+#define __cpp_lib_bind_front 201907L
 #if __has_builtin(__builtin_bit_cast)
 # define __cpp_lib_bit_cast 201806L
 #endif
@@ -202,6 +204,7 @@
 #endif
 #define __cpp_lib_endian 201907L
 #define __cpp_lib_int_pow2 202002L
+#define __cpp_lib_integer_comparison_functions 202002L
 #ifdef _GLIBCXX_HAVE_IS_CONSTANT_EVALUATED
 # define __cpp_lib_is_constant_evaluated 201811L
 #endif
@@ -214,19 +217,32 @@
  && __has_builtin(__builtin_is_pointer_interconvertible_with_class)
 # define __cpp_lib_is_pointer_interconvertible 201907L
 #endif
+#define __cpp_lib_math_constants 201907L
+#if __cpp_lib_concepts
+# define __cpp_lib_make_obj_using_allocator 201811L
+#endif
+#define __cpp_lib_optional 202106L
 #define __cpp_lib_remove_cvref 201711L
 #if __has_builtin(__builtin_source_location)
 # define __cpp_lib_source_location 201907L
 #endif
+#if __cpp_lib_concepts
+# define __cpp_lib_span 202002L
+#endif
+#define __cpp_lib_ssize 201902L
 #if __cpp_impl_three_way_comparison >= 201907L && __cpp_lib_concepts
 # define __cpp_lib_three_way_comparison 201907L
 #endif
+#define __cpp_lib_to_address 201711L
+#define __cpp_lib_to_array 201907L
 #define __cpp_lib_type_identity 201806L
 #define __cpp_lib_unwrap_ref 201811L
+#if __cpp_concepts >= 202002L && __cpp_constexpr >= 201811L
+# define __cpp_lib_variant 202106L
+#endif
 
 #if _GLIBCXX_HOSTED
 #define __cpp_lib_array_constexpr 201811L
-#define __cpp_lib_assume_aligned 201811L
 #define __cpp_lib_atomic_shared_ptr 201711L
 #if defined _GLIBCXX_HAS_GTHREADS || defined _GLIBCXX_HAVE_LINUX_FUTEX
 # define __cpp_lib_atomic_wait 201907L
@@ -234,9 +250,7 @@
 #  define __cpp_lib_barrier 201907L
 # endif
 #endif
-#define __cpp_lib_bind_front 201907L
 // FIXME: #define __cpp_lib_execution 201902L
-#define __cpp_lib_integer_comparison_functions 202002L
 #define __cpp_lib_constexpr_algorithms 201806L
 #ifdef __cpp_lib_is_constant_evaluated
 # define __cpp_lib_constexpr_char_traits 201811L
@@ -268,11 +282,6 @@
 # define __cpp_lib_latch 201907L
 #endif
 #define __cpp_lib_list_remove_return_type 201806L
-#if __cpp_lib_concepts
-# define __cpp_lib_make_obj_using_allocator 201811L
-#endif
-#define __cpp_lib_math_constants 201907L
-#define __cpp_lib_optional 202106L
 #define __cpp_lib_polymorphic_allocator 201902L
 #if __cpp_lib_concepts
 # define __cpp_lib_ranges 202110L
@@ -283,28 +292,29 @@
 #define __cpp_lib_shared_ptr_arrays 201707L
 #define __cpp_lib_shift 201806L
 #define __cpp_lib_smart_ptr_for_overwrite 202002L
-#if __cpp_lib_concepts
-# define __cpp_lib_span 202002L
-#endif
-#define __cpp_lib_ssize 201902L
 #define __cpp_lib_starts_ends_with 201711L
 # if _GLIBCXX_USE_CXX11_ABI
 // Only supported with cxx11-abi
 #  define __cpp_lib_syncbuf 201803L
 # endif
-#define __cpp_lib_to_address 201711L
-#define __cpp_lib_to_array 201907L
-#if __cpp_concepts >= 202002L && __cpp_constexpr >= 201811L
-# define __cpp_lib_variant 202106L
-#endif
 #endif
 
 #if __cplusplus > 202002L
 // c++23
 #define __cpp_lib_byteswap 202110L
 #define __cpp_lib_constexpr_typeinfo 202106L
+#if __cpp_concepts >= 202002L
+# define __cpp_lib_expected 202202L
+#endif
+#define __cpp_lib_invoke_r 202106L
 #define __cpp_lib_is_scoped_enum 202011L
+#if __cpp_lib_concepts
+# undef __cpp_lib_optional
+# define __cpp_lib_optional 202110L
+#endif
 #define __cpp_lib_reference_from_temporary 202202L
+#define __cpp_lib_to_underlying 202102L
+#define __cpp_lib_unreachable 202202L
 
 #if _GLIBCXX_HOSTED
 #define __cpp_lib_adaptor_iterator_pair_constructor 202106L
@@ -313,15 +323,7 @@
 # undef __cpp_lib_constexpr_memory
 # define __cpp_lib_constexpr_memory 202202L
 #endif
-#if __cpp_concepts >= 202002L
-# define __cpp_lib_expected 202202L
-#endif
-#define __cpp_lib_invoke_r 202106L
 #define __cpp_lib_ios_noreplace 202207L
-#if __cpp_lib_concepts
-# undef __cpp_lib_optional
-# define __cpp_lib_optional 202110L
-#endif
 #define __cpp_lib_move_only_function 202110L
 #if __cpp_lib_span
 # define __cpp_lib_spanstream 202106L
@@ -334,8 +336,6 @@
 #if _GLIBCXX_USE_CXX11_ABI // Only supported with cxx11-abi
 # define __cpp_lib_string_resize_and_overwrite 202110L
 #endif
-#define __cpp_lib_to_underlying 202102L
-#define __cpp_lib_unreachable 202202L
 #endif
 #endif // C++23
 #endif // C++20