libstdc++: Add operator bool to <charconv> result types (P2497R0)

C++26 adds these convenience conversions.

libstdc++-v3/ChangeLog:

	* include/bits/version.def (to_chars): Define new value for
	C++26.
	* include/bits/version.h: Regenerate.
	* include/std/charconv (to_chars_result::operator bool): New
	function.
	(from_chars_result::operator bool): New function.
	* testsuite/20_util/to_chars/version.cc: Update expected value.
	* testsuite/20_util/from_chars/result.cc: New test.
	* testsuite/20_util/to_chars/result.cc: New test.

diff --git a/libstdc++-v3/include/bits/version.def b/libstdc++-v3/include/bits/version.def
index 8d9b2f71a2e387d2e72c6cf0ec400b7bffc20826..b7d17c91c34eca1f35c940d67eed8896c4761142 100644 (file)
--- a/libstdc++-v3/include/bits/version.def
+++ b/libstdc++-v3/include/bits/version.def
@@ -255,6 +255,13 @@ ftms = {
 
 ftms = {
   name = to_chars;
+  values = {
+    v = 202306;
+    cxxmin = 26;
+    extra_cond = "_GLIBCXX_FLOAT_IS_IEEE_BINARY32 "
+    "&& _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 "
+    "&& __SIZE_WIDTH__ >= 32";
+  };
   values = {
     v = 201611;
     cxxmin = 14;

diff --git a/libstdc++-v3/include/bits/version.h b/libstdc++-v3/include/bits/version.h
index 3c20a8a51fb83826330216603e7c756f2efa9af1..82adda221c273f7a645fe117734ddba50e1449fe 100644 (file)
--- a/libstdc++-v3/include/bits/version.h
+++ b/libstdc++-v3/include/bits/version.h
@@ -297,7 +297,12 @@
 
 // from version.def line 257
 #if !defined(__cpp_lib_to_chars)
-# if (__cplusplus >= 201402L) && (_GLIBCXX_FLOAT_IS_IEEE_BINARY32 && _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 && __SIZE_WIDTH__ >= 32)
+# if (__cplusplus >  202302L) && (_GLIBCXX_FLOAT_IS_IEEE_BINARY32 && _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 && __SIZE_WIDTH__ >= 32)
+#  define __glibcxx_to_chars 202306L
+#  if defined(__glibcxx_want_all) || defined(__glibcxx_want_to_chars)
+#   define __cpp_lib_to_chars 202306L
+#  endif
+# elif (__cplusplus >= 201402L) && (_GLIBCXX_FLOAT_IS_IEEE_BINARY32 && _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 && __SIZE_WIDTH__ >= 32)
 #  define __glibcxx_to_chars 201611L
 #  if defined(__glibcxx_want_all) || defined(__glibcxx_want_to_chars)
 #   define __cpp_lib_to_chars 201611L
@@ -306,7 +311,7 @@
 #endif /* !defined(__cpp_lib_to_chars) && defined(__glibcxx_want_to_chars) */
 #undef __glibcxx_want_to_chars
 
-// from version.def line 268
+// from version.def line 275
 #if !defined(__cpp_lib_chrono_udls)
 # if (__cplusplus >= 201402L) && _GLIBCXX_HOSTED
 #  define __glibcxx_chrono_udls 201304L
@@ -317,7 +322,7 @@
 #endif /* !defined(__cpp_lib_chrono_udls) && defined(__glibcxx_want_chrono_udls) */
 #undef __glibcxx_want_chrono_udls
 
-// from version.def line 277
+// from version.def line 284
 #if !defined(__cpp_lib_complex_udls)
 # if (__cplusplus >= 201402L) && _GLIBCXX_HOSTED
 #  define __glibcxx_complex_udls 201309L
@@ -328,7 +333,7 @@
 #endif /* !defined(__cpp_lib_complex_udls) && defined(__glibcxx_want_complex_udls) */
 #undef __glibcxx_want_complex_udls
 
-// from version.def line 286
+// from version.def line 293
 #if !defined(__cpp_lib_generic_associative_lookup)
 # if (__cplusplus >= 201402L) && _GLIBCXX_HOSTED
 #  define __glibcxx_generic_associative_lookup 201304L
@@ -339,7 +344,7 @@
 #endif /* !defined(__cpp_lib_generic_associative_lookup) && defined(__glibcxx_want_generic_associative_lookup) */
 #undef __glibcxx_want_generic_associative_lookup
 
-// from version.def line 295
+// from version.def line 302
 #if !defined(__cpp_lib_make_unique)
 # if (__cplusplus >= 201402L) && _GLIBCXX_HOSTED
 #  define __glibcxx_make_unique 201304L
@@ -350,7 +355,7 @@
 #endif /* !defined(__cpp_lib_make_unique) && defined(__glibcxx_want_make_unique) */
 #undef __glibcxx_want_make_unique
 
-// from version.def line 304
+// from version.def line 311
 #if !defined(__cpp_lib_quoted_string_io)
 # if (__cplusplus >= 201402L) && _GLIBCXX_HOSTED
 #  define __glibcxx_quoted_string_io 201304L
@@ -361,7 +366,7 @@
 #endif /* !defined(__cpp_lib_quoted_string_io) && defined(__glibcxx_want_quoted_string_io) */
 #undef __glibcxx_want_quoted_string_io
 
-// from version.def line 313
+// from version.def line 320
 #if !defined(__cpp_lib_shared_timed_mutex)
 # if (__cplusplus >= 201402L) && defined(_GLIBCXX_HAS_GTHREADS) && _GLIBCXX_HOSTED
 #  define __glibcxx_shared_timed_mutex 201402L
@@ -372,7 +377,7 @@
 #endif /* !defined(__cpp_lib_shared_timed_mutex) && defined(__glibcxx_want_shared_timed_mutex) */
 #undef __glibcxx_want_shared_timed_mutex
 
-// from version.def line 323
+// from version.def line 330
 #if !defined(__cpp_lib_string_udls)
 # if (__cplusplus >= 201402L) && _GLIBCXX_HOSTED
 #  define __glibcxx_string_udls 201304L
@@ -383,7 +388,7 @@
 #endif /* !defined(__cpp_lib_string_udls) && defined(__glibcxx_want_string_udls) */
 #undef __glibcxx_want_string_udls
 
-// from version.def line 332
+// from version.def line 339
 #if !defined(__cpp_lib_addressof_constexpr)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_addressof_constexpr 201603L
@@ -394,7 +399,7 @@
 #endif /* !defined(__cpp_lib_addressof_constexpr) && defined(__glibcxx_want_addressof_constexpr) */
 #undef __glibcxx_want_addressof_constexpr
 
-// from version.def line 342
+// from version.def line 349
 #if !defined(__cpp_lib_any)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_any 201606L
@@ -405,7 +410,7 @@
 #endif /* !defined(__cpp_lib_any) && defined(__glibcxx_want_any) */
 #undef __glibcxx_want_any
 
-// from version.def line 350
+// from version.def line 357
 #if !defined(__cpp_lib_apply)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_apply 201603L
@@ -416,7 +421,7 @@
 #endif /* !defined(__cpp_lib_apply) && defined(__glibcxx_want_apply) */
 #undef __glibcxx_want_apply
 
-// from version.def line 358
+// from version.def line 365
 #if !defined(__cpp_lib_as_const)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_as_const 201510L
@@ -427,7 +432,7 @@
 #endif /* !defined(__cpp_lib_as_const) && defined(__glibcxx_want_as_const) */
 #undef __glibcxx_want_as_const
 
-// from version.def line 366
+// from version.def line 373
 #if !defined(__cpp_lib_atomic_is_always_lock_free)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_atomic_is_always_lock_free 201603L
@@ -438,7 +443,7 @@
 #endif /* !defined(__cpp_lib_atomic_is_always_lock_free) && defined(__glibcxx_want_atomic_is_always_lock_free) */
 #undef __glibcxx_want_atomic_is_always_lock_free
 
-// from version.def line 374
+// from version.def line 381
 #if !defined(__cpp_lib_bool_constant)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_bool_constant 201505L
@@ -449,7 +454,7 @@
 #endif /* !defined(__cpp_lib_bool_constant) && defined(__glibcxx_want_bool_constant) */
 #undef __glibcxx_want_bool_constant
 
-// from version.def line 382
+// from version.def line 389
 #if !defined(__cpp_lib_byte)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_byte 201603L
@@ -460,7 +465,7 @@
 #endif /* !defined(__cpp_lib_byte) && defined(__glibcxx_want_byte) */
 #undef __glibcxx_want_byte
 
-// from version.def line 390
+// from version.def line 397
 #if !defined(__cpp_lib_has_unique_object_representations)
 # if (__cplusplus >= 201703L) && (defined(_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP))
 #  define __glibcxx_has_unique_object_representations 201606L
@@ -471,7 +476,7 @@
 #endif /* !defined(__cpp_lib_has_unique_object_representations) && defined(__glibcxx_want_has_unique_object_representations) */
 #undef __glibcxx_want_has_unique_object_representations
 
-// from version.def line 399
+// from version.def line 406
 #if !defined(__cpp_lib_hardware_interference_size)
 # if (__cplusplus >= 201703L) && (defined(__GCC_DESTRUCTIVE_SIZE))
 #  define __glibcxx_hardware_interference_size 201703L
@@ -482,7 +487,7 @@
 #endif /* !defined(__cpp_lib_hardware_interference_size) && defined(__glibcxx_want_hardware_interference_size) */
 #undef __glibcxx_want_hardware_interference_size
 
-// from version.def line 408
+// from version.def line 415
 #if !defined(__cpp_lib_invoke)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_invoke 201411L
@@ -493,7 +498,7 @@
 #endif /* !defined(__cpp_lib_invoke) && defined(__glibcxx_want_invoke) */
 #undef __glibcxx_want_invoke
 
-// from version.def line 416
+// from version.def line 423
 #if !defined(__cpp_lib_is_aggregate)
 # if (__cplusplus >= 201703L) && (defined(_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE))
 #  define __glibcxx_is_aggregate 201703L
@@ -504,7 +509,7 @@
 #endif /* !defined(__cpp_lib_is_aggregate) && defined(__glibcxx_want_is_aggregate) */
 #undef __glibcxx_want_is_aggregate
 
-// from version.def line 425
+// from version.def line 432
 #if !defined(__cpp_lib_is_invocable)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_is_invocable 201703L
@@ -515,7 +520,7 @@
 #endif /* !defined(__cpp_lib_is_invocable) && defined(__glibcxx_want_is_invocable) */
 #undef __glibcxx_want_is_invocable
 
-// from version.def line 433
+// from version.def line 440
 #if !defined(__cpp_lib_launder)
 # if (__cplusplus >= 201703L) && (defined(_GLIBCXX_HAVE_BUILTIN_LAUNDER))
 #  define __glibcxx_launder 201606L
@@ -526,7 +531,7 @@
 #endif /* !defined(__cpp_lib_launder) && defined(__glibcxx_want_launder) */
 #undef __glibcxx_want_launder
 
-// from version.def line 442
+// from version.def line 449
 #if !defined(__cpp_lib_logical_traits)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_logical_traits 201510L
@@ -537,7 +542,7 @@
 #endif /* !defined(__cpp_lib_logical_traits) && defined(__glibcxx_want_logical_traits) */
 #undef __glibcxx_want_logical_traits
 
-// from version.def line 450
+// from version.def line 457
 #if !defined(__cpp_lib_make_from_tuple)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_make_from_tuple 201606L
@@ -548,7 +553,7 @@
 #endif /* !defined(__cpp_lib_make_from_tuple) && defined(__glibcxx_want_make_from_tuple) */
 #undef __glibcxx_want_make_from_tuple
 
-// from version.def line 458
+// from version.def line 465
 #if !defined(__cpp_lib_not_fn)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_not_fn 201603L
@@ -559,7 +564,7 @@
 #endif /* !defined(__cpp_lib_not_fn) && defined(__glibcxx_want_not_fn) */
 #undef __glibcxx_want_not_fn
 
-// from version.def line 466
+// from version.def line 473
 #if !defined(__cpp_lib_type_trait_variable_templates)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_type_trait_variable_templates 201510L
@@ -570,7 +575,7 @@
 #endif /* !defined(__cpp_lib_type_trait_variable_templates) && defined(__glibcxx_want_type_trait_variable_templates) */
 #undef __glibcxx_want_type_trait_variable_templates
 
-// from version.def line 474
+// from version.def line 481
 #if !defined(__cpp_lib_variant)
 # if (__cplusplus >= 202002L) && (__cpp_concepts >= 202002L && __cpp_constexpr >= 201811L)
 #  define __glibcxx_variant 202106L
@@ -586,7 +591,7 @@
 #endif /* !defined(__cpp_lib_variant) && defined(__glibcxx_want_variant) */
 #undef __glibcxx_want_variant
 
-// from version.def line 488
+// from version.def line 495
 #if !defined(__cpp_lib_lcm)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_lcm 201606L
@@ -597,7 +602,7 @@
 #endif /* !defined(__cpp_lib_lcm) && defined(__glibcxx_want_lcm) */
 #undef __glibcxx_want_lcm
 
-// from version.def line 497
+// from version.def line 504
 #if !defined(__cpp_lib_gcd)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_gcd 201606L
@@ -608,7 +613,7 @@
 #endif /* !defined(__cpp_lib_gcd) && defined(__glibcxx_want_gcd) */
 #undef __glibcxx_want_gcd
 
-// from version.def line 505
+// from version.def line 512
 #if !defined(__cpp_lib_gcd_lcm)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_gcd_lcm 201606L
@@ -619,7 +624,7 @@
 #endif /* !defined(__cpp_lib_gcd_lcm) && defined(__glibcxx_want_gcd_lcm) */
 #undef __glibcxx_want_gcd_lcm
 
-// from version.def line 513
+// from version.def line 520
 #if !defined(__cpp_lib_raw_memory_algorithms)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_raw_memory_algorithms 201606L
@@ -630,7 +635,7 @@
 #endif /* !defined(__cpp_lib_raw_memory_algorithms) && defined(__glibcxx_want_raw_memory_algorithms) */
 #undef __glibcxx_want_raw_memory_algorithms
 
-// from version.def line 521
+// from version.def line 528
 #if !defined(__cpp_lib_array_constexpr)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_array_constexpr 201811L
@@ -646,7 +651,7 @@
 #endif /* !defined(__cpp_lib_array_constexpr) && defined(__glibcxx_want_array_constexpr) */
 #undef __glibcxx_want_array_constexpr
 
-// from version.def line 533
+// from version.def line 540
 #if !defined(__cpp_lib_nonmember_container_access)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_nonmember_container_access 201411L
@@ -657,7 +662,7 @@
 #endif /* !defined(__cpp_lib_nonmember_container_access) && defined(__glibcxx_want_nonmember_container_access) */
 #undef __glibcxx_want_nonmember_container_access
 
-// from version.def line 541
+// from version.def line 548
 #if !defined(__cpp_lib_clamp)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_clamp 201603L
@@ -668,7 +673,7 @@
 #endif /* !defined(__cpp_lib_clamp) && defined(__glibcxx_want_clamp) */
 #undef __glibcxx_want_clamp
 
-// from version.def line 549
+// from version.def line 556
 #if !defined(__cpp_lib_sample)
 # if (__cplusplus >= 201703L)
 #  define __glibcxx_sample 201603L
@@ -679,7 +684,7 @@
 #endif /* !defined(__cpp_lib_sample) && defined(__glibcxx_want_sample) */
 #undef __glibcxx_want_sample
 
-// from version.def line 557
+// from version.def line 564
 #if !defined(__cpp_lib_boyer_moore_searcher)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_boyer_moore_searcher 201603L
@@ -690,7 +695,7 @@
 #endif /* !defined(__cpp_lib_boyer_moore_searcher) && defined(__glibcxx_want_boyer_moore_searcher) */
 #undef __glibcxx_want_boyer_moore_searcher
 
-// from version.def line 566
+// from version.def line 573
 #if !defined(__cpp_lib_chrono)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_chrono 201907L
@@ -706,7 +711,7 @@
 #endif /* !defined(__cpp_lib_chrono) && defined(__glibcxx_want_chrono) */
 #undef __glibcxx_want_chrono
 
-// from version.def line 580
+// from version.def line 587
 #if !defined(__cpp_lib_execution)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_execution 201902L
@@ -717,7 +722,7 @@
 #endif /* !defined(__cpp_lib_execution) && defined(__glibcxx_want_execution) */
 #undef __glibcxx_want_execution
 
-// from version.def line 589
+// from version.def line 596
 #if !defined(__cpp_lib_filesystem)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_filesystem 201703L
@@ -728,7 +733,7 @@
 #endif /* !defined(__cpp_lib_filesystem) && defined(__glibcxx_want_filesystem) */
 #undef __glibcxx_want_filesystem
 
-// from version.def line 598
+// from version.def line 605
 #if !defined(__cpp_lib_hypot)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_hypot 201603L
@@ -739,7 +744,7 @@
 #endif /* !defined(__cpp_lib_hypot) && defined(__glibcxx_want_hypot) */
 #undef __glibcxx_want_hypot
 
-// from version.def line 607
+// from version.def line 614
 #if !defined(__cpp_lib_map_try_emplace)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_map_try_emplace 201411L
@@ -750,7 +755,7 @@
 #endif /* !defined(__cpp_lib_map_try_emplace) && defined(__glibcxx_want_map_try_emplace) */
 #undef __glibcxx_want_map_try_emplace
 
-// from version.def line 616
+// from version.def line 623
 #if !defined(__cpp_lib_math_special_functions)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_math_special_functions 201603L
@@ -761,7 +766,7 @@
 #endif /* !defined(__cpp_lib_math_special_functions) && defined(__glibcxx_want_math_special_functions) */
 #undef __glibcxx_want_math_special_functions
 
-// from version.def line 625
+// from version.def line 632
 #if !defined(__cpp_lib_memory_resource)
 # if (__cplusplus >= 201703L) && defined(_GLIBCXX_HAS_GTHREADS) && _GLIBCXX_HOSTED
 #  define __glibcxx_memory_resource 201603L
@@ -777,7 +782,7 @@
 #endif /* !defined(__cpp_lib_memory_resource) && defined(__glibcxx_want_memory_resource) */
 #undef __glibcxx_want_memory_resource
 
-// from version.def line 642
+// from version.def line 649
 #if !defined(__cpp_lib_node_extract)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_node_extract 201606L
@@ -788,7 +793,7 @@
 #endif /* !defined(__cpp_lib_node_extract) && defined(__glibcxx_want_node_extract) */
 #undef __glibcxx_want_node_extract
 
-// from version.def line 651
+// from version.def line 658
 #if !defined(__cpp_lib_parallel_algorithm)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_parallel_algorithm 201603L
@@ -799,7 +804,7 @@
 #endif /* !defined(__cpp_lib_parallel_algorithm) && defined(__glibcxx_want_parallel_algorithm) */
 #undef __glibcxx_want_parallel_algorithm
 
-// from version.def line 660
+// from version.def line 667
 #if !defined(__cpp_lib_scoped_lock)
 # if (__cplusplus >= 201703L) && defined(_GLIBCXX_HAS_GTHREADS) && _GLIBCXX_HOSTED
 #  define __glibcxx_scoped_lock 201703L
@@ -810,7 +815,7 @@
 #endif /* !defined(__cpp_lib_scoped_lock) && defined(__glibcxx_want_scoped_lock) */
 #undef __glibcxx_want_scoped_lock
 
-// from version.def line 670
+// from version.def line 677
 #if !defined(__cpp_lib_shared_mutex)
 # if (__cplusplus >= 201703L) && defined(_GLIBCXX_HAS_GTHREADS) && _GLIBCXX_HOSTED
 #  define __glibcxx_shared_mutex 201505L
@@ -821,7 +826,7 @@
 #endif /* !defined(__cpp_lib_shared_mutex) && defined(__glibcxx_want_shared_mutex) */
 #undef __glibcxx_want_shared_mutex
 
-// from version.def line 680
+// from version.def line 687
 #if !defined(__cpp_lib_shared_ptr_weak_type)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_shared_ptr_weak_type 201606L
@@ -832,7 +837,7 @@
 #endif /* !defined(__cpp_lib_shared_ptr_weak_type) && defined(__glibcxx_want_shared_ptr_weak_type) */
 #undef __glibcxx_want_shared_ptr_weak_type
 
-// from version.def line 689
+// from version.def line 696
 #if !defined(__cpp_lib_string_view)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_string_view 201803L
@@ -843,7 +848,7 @@
 #endif /* !defined(__cpp_lib_string_view) && defined(__glibcxx_want_string_view) */
 #undef __glibcxx_want_string_view
 
-// from version.def line 698
+// from version.def line 705
 #if !defined(__cpp_lib_unordered_map_try_emplace)
 # if (__cplusplus >= 201703L) && _GLIBCXX_HOSTED
 #  define __glibcxx_unordered_map_try_emplace 201411L
@@ -854,7 +859,7 @@
 #endif /* !defined(__cpp_lib_unordered_map_try_emplace) && defined(__glibcxx_want_unordered_map_try_emplace) */
 #undef __glibcxx_want_unordered_map_try_emplace
 
-// from version.def line 707
+// from version.def line 714
 #if !defined(__cpp_lib_assume_aligned)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_assume_aligned 201811L
@@ -865,7 +870,7 @@
 #endif /* !defined(__cpp_lib_assume_aligned) && defined(__glibcxx_want_assume_aligned) */
 #undef __glibcxx_want_assume_aligned
 
-// from version.def line 715
+// from version.def line 722
 #if !defined(__cpp_lib_atomic_flag_test)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_atomic_flag_test 201907L
@@ -876,7 +881,7 @@
 #endif /* !defined(__cpp_lib_atomic_flag_test) && defined(__glibcxx_want_atomic_flag_test) */
 #undef __glibcxx_want_atomic_flag_test
 
-// from version.def line 723
+// from version.def line 730
 #if !defined(__cpp_lib_atomic_float)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_atomic_float 201711L
@@ -887,7 +892,7 @@
 #endif /* !defined(__cpp_lib_atomic_float) && defined(__glibcxx_want_atomic_float) */
 #undef __glibcxx_want_atomic_float
 
-// from version.def line 731
+// from version.def line 738
 #if !defined(__cpp_lib_atomic_lock_free_type_aliases)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_atomic_lock_free_type_aliases 201907L
@@ -898,7 +903,7 @@
 #endif /* !defined(__cpp_lib_atomic_lock_free_type_aliases) && defined(__glibcxx_want_atomic_lock_free_type_aliases) */
 #undef __glibcxx_want_atomic_lock_free_type_aliases
 
-// from version.def line 739
+// from version.def line 746
 #if !defined(__cpp_lib_atomic_ref)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_atomic_ref 201806L
@@ -909,7 +914,7 @@
 #endif /* !defined(__cpp_lib_atomic_ref) && defined(__glibcxx_want_atomic_ref) */
 #undef __glibcxx_want_atomic_ref
 
-// from version.def line 747
+// from version.def line 754
 #if !defined(__cpp_lib_atomic_value_initialization)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_atomic_value_initialization 201911L
@@ -920,7 +925,7 @@
 #endif /* !defined(__cpp_lib_atomic_value_initialization) && defined(__glibcxx_want_atomic_value_initialization) */
 #undef __glibcxx_want_atomic_value_initialization
 
-// from version.def line 755
+// from version.def line 762
 #if !defined(__cpp_lib_bind_front)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_bind_front 201907L
@@ -931,7 +936,7 @@
 #endif /* !defined(__cpp_lib_bind_front) && defined(__glibcxx_want_bind_front) */
 #undef __glibcxx_want_bind_front
 
-// from version.def line 763
+// from version.def line 770
 #if !defined(__cpp_lib_starts_ends_with)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_starts_ends_with 201711L
@@ -942,7 +947,7 @@
 #endif /* !defined(__cpp_lib_starts_ends_with) && defined(__glibcxx_want_starts_ends_with) */
 #undef __glibcxx_want_starts_ends_with
 
-// from version.def line 771
+// from version.def line 778
 #if !defined(__cpp_lib_bit_cast)
 # if (__cplusplus >= 202002L) && (__has_builtin(__builtin_bit_cast))
 #  define __glibcxx_bit_cast 201806L
@@ -953,7 +958,7 @@
 #endif /* !defined(__cpp_lib_bit_cast) && defined(__glibcxx_want_bit_cast) */
 #undef __glibcxx_want_bit_cast
 
-// from version.def line 780
+// from version.def line 787
 #if !defined(__cpp_lib_bitops)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_bitops 201907L
@@ -964,7 +969,7 @@
 #endif /* !defined(__cpp_lib_bitops) && defined(__glibcxx_want_bitops) */
 #undef __glibcxx_want_bitops
 
-// from version.def line 788
+// from version.def line 795
 #if !defined(__cpp_lib_bounded_array_traits)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_bounded_array_traits 201902L
@@ -975,7 +980,7 @@
 #endif /* !defined(__cpp_lib_bounded_array_traits) && defined(__glibcxx_want_bounded_array_traits) */
 #undef __glibcxx_want_bounded_array_traits
 
-// from version.def line 796
+// from version.def line 803
 #if !defined(__cpp_lib_concepts)
 # if (__cplusplus >= 202002L) && (__cpp_concepts >= 201907L)
 #  define __glibcxx_concepts 202002L
@@ -986,7 +991,7 @@
 #endif /* !defined(__cpp_lib_concepts) && defined(__glibcxx_want_concepts) */
 #undef __glibcxx_want_concepts
 
-// from version.def line 806
+// from version.def line 813
 #if !defined(__cpp_lib_optional)
 # if (__cplusplus >= 202302L) && (__glibcxx_concepts)
 #  define __glibcxx_optional 202110L
@@ -1007,7 +1012,7 @@
 #endif /* !defined(__cpp_lib_optional) && defined(__glibcxx_want_optional) */
 #undef __glibcxx_want_optional
 
-// from version.def line 823
+// from version.def line 830
 #if !defined(__cpp_lib_destroying_delete)
 # if (__cplusplus >= 202002L) && (__cpp_impl_destroying_delete)
 #  define __glibcxx_destroying_delete 201806L
@@ -1018,7 +1023,7 @@
 #endif /* !defined(__cpp_lib_destroying_delete) && defined(__glibcxx_want_destroying_delete) */
 #undef __glibcxx_want_destroying_delete
 
-// from version.def line 832
+// from version.def line 839
 #if !defined(__cpp_lib_constexpr_string_view)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_constexpr_string_view 201811L
@@ -1029,7 +1034,7 @@
 #endif /* !defined(__cpp_lib_constexpr_string_view) && defined(__glibcxx_want_constexpr_string_view) */
 #undef __glibcxx_want_constexpr_string_view
 
-// from version.def line 840
+// from version.def line 847
 #if !defined(__cpp_lib_endian)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_endian 201907L
@@ -1040,7 +1045,7 @@
 #endif /* !defined(__cpp_lib_endian) && defined(__glibcxx_want_endian) */
 #undef __glibcxx_want_endian
 
-// from version.def line 848
+// from version.def line 855
 #if !defined(__cpp_lib_int_pow2)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_int_pow2 202002L
@@ -1051,7 +1056,7 @@
 #endif /* !defined(__cpp_lib_int_pow2) && defined(__glibcxx_want_int_pow2) */
 #undef __glibcxx_want_int_pow2
 
-// from version.def line 856
+// from version.def line 863
 #if !defined(__cpp_lib_integer_comparison_functions)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_integer_comparison_functions 202002L
@@ -1062,7 +1067,7 @@
 #endif /* !defined(__cpp_lib_integer_comparison_functions) && defined(__glibcxx_want_integer_comparison_functions) */
 #undef __glibcxx_want_integer_comparison_functions
 
-// from version.def line 864
+// from version.def line 871
 #if !defined(__cpp_lib_is_constant_evaluated)
 # if (__cplusplus >= 202002L) && (defined(_GLIBCXX_HAVE_IS_CONSTANT_EVALUATED))
 #  define __glibcxx_is_constant_evaluated 201811L
@@ -1073,7 +1078,7 @@
 #endif /* !defined(__cpp_lib_is_constant_evaluated) && defined(__glibcxx_want_is_constant_evaluated) */
 #undef __glibcxx_want_is_constant_evaluated
 
-// from version.def line 874
+// from version.def line 881
 #if !defined(__cpp_lib_constexpr_char_traits)
 # if (__cplusplus >= 202002L) && (defined(__glibcxx_is_constant_evaluated))
 #  define __glibcxx_constexpr_char_traits 201811L
@@ -1089,7 +1094,7 @@
 #endif /* !defined(__cpp_lib_constexpr_char_traits) && defined(__glibcxx_want_constexpr_char_traits) */
 #undef __glibcxx_want_constexpr_char_traits
 
-// from version.def line 890
+// from version.def line 897
 #if !defined(__cpp_lib_is_layout_compatible)
 # if (__cplusplus >= 202002L) && (__has_builtin(__is_layout_compatible) && __has_builtin(__builtin_is_corresponding_member))
 #  define __glibcxx_is_layout_compatible 201907L
@@ -1100,7 +1105,7 @@
 #endif /* !defined(__cpp_lib_is_layout_compatible) && defined(__glibcxx_want_is_layout_compatible) */
 #undef __glibcxx_want_is_layout_compatible
 
-// from version.def line 900
+// from version.def line 907
 #if !defined(__cpp_lib_is_nothrow_convertible)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_is_nothrow_convertible 201806L
@@ -1111,7 +1116,7 @@
 #endif /* !defined(__cpp_lib_is_nothrow_convertible) && defined(__glibcxx_want_is_nothrow_convertible) */
 #undef __glibcxx_want_is_nothrow_convertible
 
-// from version.def line 908
+// from version.def line 915
 #if !defined(__cpp_lib_is_pointer_interconvertible)
 # if (__cplusplus >= 202002L) && (__has_builtin(__is_pointer_interconvertible_base_of) && __has_builtin(__builtin_is_pointer_interconvertible_with_class))
 #  define __glibcxx_is_pointer_interconvertible 201907L
@@ -1122,7 +1127,7 @@
 #endif /* !defined(__cpp_lib_is_pointer_interconvertible) && defined(__glibcxx_want_is_pointer_interconvertible) */
 #undef __glibcxx_want_is_pointer_interconvertible
 
-// from version.def line 919
+// from version.def line 926
 #if !defined(__cpp_lib_math_constants)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_math_constants 201907L
@@ -1133,7 +1138,7 @@
 #endif /* !defined(__cpp_lib_math_constants) && defined(__glibcxx_want_math_constants) */
 #undef __glibcxx_want_math_constants
 
-// from version.def line 927
+// from version.def line 934
 #if !defined(__cpp_lib_make_obj_using_allocator)
 # if (__cplusplus >= 202002L) && (__cpp_concepts)
 #  define __glibcxx_make_obj_using_allocator 201811L
@@ -1144,7 +1149,7 @@
 #endif /* !defined(__cpp_lib_make_obj_using_allocator) && defined(__glibcxx_want_make_obj_using_allocator) */
 #undef __glibcxx_want_make_obj_using_allocator
 
-// from version.def line 937
+// from version.def line 944
 #if !defined(__cpp_lib_remove_cvref)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_remove_cvref 201711L
@@ -1155,7 +1160,7 @@
 #endif /* !defined(__cpp_lib_remove_cvref) && defined(__glibcxx_want_remove_cvref) */
 #undef __glibcxx_want_remove_cvref
 
-// from version.def line 945
+// from version.def line 952
 #if !defined(__cpp_lib_source_location)
 # if (__cplusplus >= 202002L) && (__has_builtin(__builtin_source_location))
 #  define __glibcxx_source_location 201907L
@@ -1166,7 +1171,7 @@
 #endif /* !defined(__cpp_lib_source_location) && defined(__glibcxx_want_source_location) */
 #undef __glibcxx_want_source_location
 
-// from version.def line 954
+// from version.def line 961
 #if !defined(__cpp_lib_span)
 # if (__cplusplus >= 202002L) && (__glibcxx_concepts)
 #  define __glibcxx_span 202002L
@@ -1177,7 +1182,7 @@
 #endif /* !defined(__cpp_lib_span) && defined(__glibcxx_want_span) */
 #undef __glibcxx_want_span
 
-// from version.def line 963
+// from version.def line 970
 #if !defined(__cpp_lib_ssize)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_ssize 201902L
@@ -1188,7 +1193,7 @@
 #endif /* !defined(__cpp_lib_ssize) && defined(__glibcxx_want_ssize) */
 #undef __glibcxx_want_ssize
 
-// from version.def line 971
+// from version.def line 978
 #if !defined(__cpp_lib_three_way_comparison)
 # if (__cplusplus >= 202002L) && (__cpp_impl_three_way_comparison >= 201907L && __glibcxx_concepts)
 #  define __glibcxx_three_way_comparison 201907L
@@ -1199,7 +1204,7 @@
 #endif /* !defined(__cpp_lib_three_way_comparison) && defined(__glibcxx_want_three_way_comparison) */
 #undef __glibcxx_want_three_way_comparison
 
-// from version.def line 981
+// from version.def line 988
 #if !defined(__cpp_lib_to_address)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_to_address 201711L
@@ -1210,7 +1215,7 @@
 #endif /* !defined(__cpp_lib_to_address) && defined(__glibcxx_want_to_address) */
 #undef __glibcxx_want_to_address
 
-// from version.def line 989
+// from version.def line 996
 #if !defined(__cpp_lib_to_array)
 # if (__cplusplus >= 202002L) && (__cpp_generic_lambdas >= 201707L)
 #  define __glibcxx_to_array 201907L
@@ -1221,7 +1226,7 @@
 #endif /* !defined(__cpp_lib_to_array) && defined(__glibcxx_want_to_array) */
 #undef __glibcxx_want_to_array
 
-// from version.def line 998
+// from version.def line 1005
 #if !defined(__cpp_lib_type_identity)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_type_identity 201806L
@@ -1232,7 +1237,7 @@
 #endif /* !defined(__cpp_lib_type_identity) && defined(__glibcxx_want_type_identity) */
 #undef __glibcxx_want_type_identity
 
-// from version.def line 1006
+// from version.def line 1013
 #if !defined(__cpp_lib_unwrap_ref)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_unwrap_ref 201811L
@@ -1243,7 +1248,7 @@
 #endif /* !defined(__cpp_lib_unwrap_ref) && defined(__glibcxx_want_unwrap_ref) */
 #undef __glibcxx_want_unwrap_ref
 
-// from version.def line 1014
+// from version.def line 1021
 #if !defined(__cpp_lib_constexpr_iterator)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_constexpr_iterator 201811L
@@ -1254,7 +1259,7 @@
 #endif /* !defined(__cpp_lib_constexpr_iterator) && defined(__glibcxx_want_constexpr_iterator) */
 #undef __glibcxx_want_constexpr_iterator
 
-// from version.def line 1022
+// from version.def line 1029
 #if !defined(__cpp_lib_interpolate)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_interpolate 201902L
@@ -1265,7 +1270,7 @@
 #endif /* !defined(__cpp_lib_interpolate) && defined(__glibcxx_want_interpolate) */
 #undef __glibcxx_want_interpolate
 
-// from version.def line 1030
+// from version.def line 1037
 #if !defined(__cpp_lib_constexpr_utility)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_constexpr_utility 201811L
@@ -1276,7 +1281,7 @@
 #endif /* !defined(__cpp_lib_constexpr_utility) && defined(__glibcxx_want_constexpr_utility) */
 #undef __glibcxx_want_constexpr_utility
 
-// from version.def line 1038
+// from version.def line 1045
 #if !defined(__cpp_lib_shift)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_shift 201806L
@@ -1287,7 +1292,7 @@
 #endif /* !defined(__cpp_lib_shift) && defined(__glibcxx_want_shift) */
 #undef __glibcxx_want_shift
 
-// from version.def line 1046
+// from version.def line 1053
 #if !defined(__cpp_lib_ranges)
 # if (__cplusplus >= 202302L) && (__glibcxx_concepts)
 #  define __glibcxx_ranges 202211L
@@ -1303,7 +1308,7 @@
 #endif /* !defined(__cpp_lib_ranges) && defined(__glibcxx_want_ranges) */
 #undef __glibcxx_want_ranges
 
-// from version.def line 1060
+// from version.def line 1067
 #if !defined(__cpp_lib_constexpr_numeric)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_constexpr_numeric 201911L
@@ -1314,7 +1319,7 @@
 #endif /* !defined(__cpp_lib_constexpr_numeric) && defined(__glibcxx_want_constexpr_numeric) */
 #undef __glibcxx_want_constexpr_numeric
 
-// from version.def line 1068
+// from version.def line 1075
 #if !defined(__cpp_lib_constexpr_functional)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_constexpr_functional 201907L
@@ -1325,7 +1330,7 @@
 #endif /* !defined(__cpp_lib_constexpr_functional) && defined(__glibcxx_want_constexpr_functional) */
 #undef __glibcxx_want_constexpr_functional
 
-// from version.def line 1076
+// from version.def line 1083
 #if !defined(__cpp_lib_constexpr_algorithms)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_constexpr_algorithms 201806L
@@ -1336,7 +1341,7 @@
 #endif /* !defined(__cpp_lib_constexpr_algorithms) && defined(__glibcxx_want_constexpr_algorithms) */
 #undef __glibcxx_want_constexpr_algorithms
 
-// from version.def line 1084
+// from version.def line 1091
 #if !defined(__cpp_lib_constexpr_tuple)
 # if (__cplusplus >= 202002L)
 #  define __glibcxx_constexpr_tuple 201811L
@@ -1347,7 +1352,7 @@
 #endif /* !defined(__cpp_lib_constexpr_tuple) && defined(__glibcxx_want_constexpr_tuple) */
 #undef __glibcxx_want_constexpr_tuple
 
-// from version.def line 1092
+// from version.def line 1099
 #if !defined(__cpp_lib_constexpr_memory)
 # if (__cplusplus >= 202302L) && (__cpp_constexpr_dynamic_alloc)
 #  define __glibcxx_constexpr_memory 202202L
@@ -1363,7 +1368,7 @@
 #endif /* !defined(__cpp_lib_constexpr_memory) && defined(__glibcxx_want_constexpr_memory) */
 #undef __glibcxx_want_constexpr_memory
 
-// from version.def line 1105
+// from version.def line 1112
 #if !defined(__cpp_lib_atomic_shared_ptr)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_atomic_shared_ptr 201711L
@@ -1374,7 +1379,7 @@
 #endif /* !defined(__cpp_lib_atomic_shared_ptr) && defined(__glibcxx_want_atomic_shared_ptr) */
 #undef __glibcxx_want_atomic_shared_ptr
 
-// from version.def line 1114
+// from version.def line 1121
 #if !defined(__cpp_lib_atomic_wait)
 # if (__cplusplus >= 202002L) && defined(_GLIBCXX_HAS_GTHREADS) && _GLIBCXX_HOSTED
 #  define __glibcxx_atomic_wait 201907L
@@ -1390,7 +1395,7 @@
 #endif /* !defined(__cpp_lib_atomic_wait) && defined(__glibcxx_want_atomic_wait) */
 #undef __glibcxx_want_atomic_wait
 
-// from version.def line 1132
+// from version.def line 1139
 #if !defined(__cpp_lib_barrier)
 # if (__cplusplus >= 202002L) && (__cpp_aligned_new && __glibcxx_atomic_wait)
 #  define __glibcxx_barrier 201907L
@@ -1401,7 +1406,7 @@
 #endif /* !defined(__cpp_lib_barrier) && defined(__glibcxx_want_barrier) */
 #undef __glibcxx_want_barrier
 
-// from version.def line 1149
+// from version.def line 1156
 #if !defined(__cpp_lib_format)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_format 202106L
@@ -1412,7 +1417,7 @@
 #endif /* !defined(__cpp_lib_format) && defined(__glibcxx_want_format) */
 #undef __glibcxx_want_format
 
-// from version.def line 1162
+// from version.def line 1169
 #if !defined(__cpp_lib_constexpr_complex)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_constexpr_complex 201711L
@@ -1423,7 +1428,7 @@
 #endif /* !defined(__cpp_lib_constexpr_complex) && defined(__glibcxx_want_constexpr_complex) */
 #undef __glibcxx_want_constexpr_complex
 
-// from version.def line 1171
+// from version.def line 1178
 #if !defined(__cpp_lib_constexpr_dynamic_alloc)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_constexpr_dynamic_alloc 201907L
@@ -1434,7 +1439,7 @@
 #endif /* !defined(__cpp_lib_constexpr_dynamic_alloc) && defined(__glibcxx_want_constexpr_dynamic_alloc) */
 #undef __glibcxx_want_constexpr_dynamic_alloc
 
-// from version.def line 1180
+// from version.def line 1187
 #if !defined(__cpp_lib_constexpr_string)
 # if (__cplusplus >= 202002L) && _GLIBCXX_USE_CXX11_ABI && _GLIBCXX_HOSTED && (defined(__glibcxx_is_constant_evaluated))
 #  define __glibcxx_constexpr_string 201907L
@@ -1455,7 +1460,7 @@
 #endif /* !defined(__cpp_lib_constexpr_string) && defined(__glibcxx_want_constexpr_string) */
 #undef __glibcxx_want_constexpr_string
 
-// from version.def line 1204
+// from version.def line 1211
 #if !defined(__cpp_lib_constexpr_vector)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_constexpr_vector 201907L
@@ -1466,7 +1471,7 @@
 #endif /* !defined(__cpp_lib_constexpr_vector) && defined(__glibcxx_want_constexpr_vector) */
 #undef __glibcxx_want_constexpr_vector
 
-// from version.def line 1213
+// from version.def line 1220
 #if !defined(__cpp_lib_erase_if)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_erase_if 202002L
@@ -1477,7 +1482,7 @@
 #endif /* !defined(__cpp_lib_erase_if) && defined(__glibcxx_want_erase_if) */
 #undef __glibcxx_want_erase_if
 
-// from version.def line 1222
+// from version.def line 1229
 #if !defined(__cpp_lib_generic_unordered_lookup)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_generic_unordered_lookup 201811L
@@ -1488,7 +1493,7 @@
 #endif /* !defined(__cpp_lib_generic_unordered_lookup) && defined(__glibcxx_want_generic_unordered_lookup) */
 #undef __glibcxx_want_generic_unordered_lookup
 
-// from version.def line 1231
+// from version.def line 1238
 #if !defined(__cpp_lib_jthread)
 # if (__cplusplus >= 202002L) && defined(_GLIBCXX_HAS_GTHREADS) && _GLIBCXX_HOSTED
 #  define __glibcxx_jthread 201911L
@@ -1499,7 +1504,7 @@
 #endif /* !defined(__cpp_lib_jthread) && defined(__glibcxx_want_jthread) */
 #undef __glibcxx_want_jthread
 
-// from version.def line 1241
+// from version.def line 1248
 #if !defined(__cpp_lib_latch)
 # if (__cplusplus >= 202002L) && (__glibcxx_atomic_wait)
 #  define __glibcxx_latch 201907L
@@ -1510,7 +1515,7 @@
 #endif /* !defined(__cpp_lib_latch) && defined(__glibcxx_want_latch) */
 #undef __glibcxx_want_latch
 
-// from version.def line 1250
+// from version.def line 1257
 #if !defined(__cpp_lib_list_remove_return_type)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_list_remove_return_type 201806L
@@ -1521,7 +1526,7 @@
 #endif /* !defined(__cpp_lib_list_remove_return_type) && defined(__glibcxx_want_list_remove_return_type) */
 #undef __glibcxx_want_list_remove_return_type
 
-// from version.def line 1259
+// from version.def line 1266
 #if !defined(__cpp_lib_polymorphic_allocator)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_polymorphic_allocator 201902L
@@ -1532,7 +1537,7 @@
 #endif /* !defined(__cpp_lib_polymorphic_allocator) && defined(__glibcxx_want_polymorphic_allocator) */
 #undef __glibcxx_want_polymorphic_allocator
 
-// from version.def line 1268
+// from version.def line 1275
 #if !defined(__cpp_lib_move_iterator_concept)
 # if (__cplusplus >= 202002L) && (__glibcxx_concepts)
 #  define __glibcxx_move_iterator_concept 202207L
@@ -1543,7 +1548,7 @@
 #endif /* !defined(__cpp_lib_move_iterator_concept) && defined(__glibcxx_want_move_iterator_concept) */
 #undef __glibcxx_want_move_iterator_concept
 
-// from version.def line 1278
+// from version.def line 1285
 #if !defined(__cpp_lib_semaphore)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED && (__glibcxx_atomic_wait || _GLIBCXX_HAVE_POSIX_SEMAPHORE)
 #  define __glibcxx_semaphore 201907L
@@ -1554,7 +1559,7 @@
 #endif /* !defined(__cpp_lib_semaphore) && defined(__glibcxx_want_semaphore) */
 #undef __glibcxx_want_semaphore
 
-// from version.def line 1288
+// from version.def line 1295
 #if !defined(__cpp_lib_smart_ptr_for_overwrite)
 # if (__cplusplus >= 202002L) && _GLIBCXX_HOSTED
 #  define __glibcxx_smart_ptr_for_overwrite 202002L
@@ -1565,7 +1570,7 @@
 #endif /* !defined(__cpp_lib_smart_ptr_for_overwrite) && defined(__glibcxx_want_smart_ptr_for_overwrite) */
 #undef __glibcxx_want_smart_ptr_for_overwrite
 
-// from version.def line 1297
+// from version.def line 1304
 #if !defined(__cpp_lib_syncbuf)
 # if (__cplusplus >= 202002L) && _GLIBCXX_USE_CXX11_ABI && _GLIBCXX_HOSTED
 #  define __glibcxx_syncbuf 201803L
@@ -1576,7 +1581,7 @@
 #endif /* !defined(__cpp_lib_syncbuf) && defined(__glibcxx_want_syncbuf) */
 #undef __glibcxx_want_syncbuf
 
-// from version.def line 1307
+// from version.def line 1314
 #if !defined(__cpp_lib_byteswap)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_byteswap 202110L
@@ -1587,7 +1592,7 @@
 #endif /* !defined(__cpp_lib_byteswap) && defined(__glibcxx_want_byteswap) */
 #undef __glibcxx_want_byteswap
 
-// from version.def line 1315
+// from version.def line 1322
 #if !defined(__cpp_lib_constexpr_charconv)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_constexpr_charconv 202207L
@@ -1598,7 +1603,7 @@
 #endif /* !defined(__cpp_lib_constexpr_charconv) && defined(__glibcxx_want_constexpr_charconv) */
 #undef __glibcxx_want_constexpr_charconv
 
-// from version.def line 1323
+// from version.def line 1330
 #if !defined(__cpp_lib_constexpr_typeinfo)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_constexpr_typeinfo 202106L
@@ -1609,7 +1614,7 @@
 #endif /* !defined(__cpp_lib_constexpr_typeinfo) && defined(__glibcxx_want_constexpr_typeinfo) */
 #undef __glibcxx_want_constexpr_typeinfo
 
-// from version.def line 1331
+// from version.def line 1338
 #if !defined(__cpp_lib_expected)
 # if (__cplusplus >= 202302L) && (__cpp_concepts >= 202002L)
 #  define __glibcxx_expected 202211L
@@ -1620,7 +1625,7 @@
 #endif /* !defined(__cpp_lib_expected) && defined(__glibcxx_want_expected) */
 #undef __glibcxx_want_expected
 
-// from version.def line 1340
+// from version.def line 1347
 #if !defined(__cpp_lib_invoke_r)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_invoke_r 202106L
@@ -1631,7 +1636,7 @@
 #endif /* !defined(__cpp_lib_invoke_r) && defined(__glibcxx_want_invoke_r) */
 #undef __glibcxx_want_invoke_r
 
-// from version.def line 1348
+// from version.def line 1355
 #if !defined(__cpp_lib_is_scoped_enum)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_is_scoped_enum 202011L
@@ -1642,7 +1647,7 @@
 #endif /* !defined(__cpp_lib_is_scoped_enum) && defined(__glibcxx_want_is_scoped_enum) */
 #undef __glibcxx_want_is_scoped_enum
 
-// from version.def line 1356
+// from version.def line 1363
 #if !defined(__cpp_lib_reference_from_temporary)
 # if (__cplusplus >= 202302L) && (__has_builtin(__reference_constructs_from_temporary) && __has_builtin(__reference_converts_from_temporary))
 #  define __glibcxx_reference_from_temporary 202202L
@@ -1653,7 +1658,7 @@
 #endif /* !defined(__cpp_lib_reference_from_temporary) && defined(__glibcxx_want_reference_from_temporary) */
 #undef __glibcxx_want_reference_from_temporary
 
-// from version.def line 1367
+// from version.def line 1374
 #if !defined(__cpp_lib_to_underlying)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_to_underlying 202102L
@@ -1664,7 +1669,7 @@
 #endif /* !defined(__cpp_lib_to_underlying) && defined(__glibcxx_want_to_underlying) */
 #undef __glibcxx_want_to_underlying
 
-// from version.def line 1375
+// from version.def line 1382
 #if !defined(__cpp_lib_unreachable)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_unreachable 202202L
@@ -1675,7 +1680,7 @@
 #endif /* !defined(__cpp_lib_unreachable) && defined(__glibcxx_want_unreachable) */
 #undef __glibcxx_want_unreachable
 
-// from version.def line 1383
+// from version.def line 1390
 #if !defined(__cpp_lib_ranges_zip)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_zip 202110L
@@ -1686,7 +1691,7 @@
 #endif /* !defined(__cpp_lib_ranges_zip) && defined(__glibcxx_want_ranges_zip) */
 #undef __glibcxx_want_ranges_zip
 
-// from version.def line 1391
+// from version.def line 1398
 #if !defined(__cpp_lib_ranges_chunk)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_chunk 202202L
@@ -1697,7 +1702,7 @@
 #endif /* !defined(__cpp_lib_ranges_chunk) && defined(__glibcxx_want_ranges_chunk) */
 #undef __glibcxx_want_ranges_chunk
 
-// from version.def line 1399
+// from version.def line 1406
 #if !defined(__cpp_lib_ranges_slide)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_slide 202202L
@@ -1708,7 +1713,7 @@
 #endif /* !defined(__cpp_lib_ranges_slide) && defined(__glibcxx_want_ranges_slide) */
 #undef __glibcxx_want_ranges_slide
 
-// from version.def line 1407
+// from version.def line 1414
 #if !defined(__cpp_lib_ranges_chunk_by)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_chunk_by 202202L
@@ -1719,7 +1724,7 @@
 #endif /* !defined(__cpp_lib_ranges_chunk_by) && defined(__glibcxx_want_ranges_chunk_by) */
 #undef __glibcxx_want_ranges_chunk_by
 
-// from version.def line 1415
+// from version.def line 1422
 #if !defined(__cpp_lib_ranges_join_with)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_join_with 202202L
@@ -1730,7 +1735,7 @@
 #endif /* !defined(__cpp_lib_ranges_join_with) && defined(__glibcxx_want_ranges_join_with) */
 #undef __glibcxx_want_ranges_join_with
 
-// from version.def line 1423
+// from version.def line 1430
 #if !defined(__cpp_lib_ranges_repeat)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_repeat 202207L
@@ -1741,7 +1746,7 @@
 #endif /* !defined(__cpp_lib_ranges_repeat) && defined(__glibcxx_want_ranges_repeat) */
 #undef __glibcxx_want_ranges_repeat
 
-// from version.def line 1431
+// from version.def line 1438
 #if !defined(__cpp_lib_ranges_stride)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_stride 202207L
@@ -1752,7 +1757,7 @@
 #endif /* !defined(__cpp_lib_ranges_stride) && defined(__glibcxx_want_ranges_stride) */
 #undef __glibcxx_want_ranges_stride
 
-// from version.def line 1439
+// from version.def line 1446
 #if !defined(__cpp_lib_ranges_cartesian_product)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_cartesian_product 202207L
@@ -1763,7 +1768,7 @@
 #endif /* !defined(__cpp_lib_ranges_cartesian_product) && defined(__glibcxx_want_ranges_cartesian_product) */
 #undef __glibcxx_want_ranges_cartesian_product
 
-// from version.def line 1447
+// from version.def line 1454
 #if !defined(__cpp_lib_ranges_as_rvalue)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_as_rvalue 202207L
@@ -1774,7 +1779,7 @@
 #endif /* !defined(__cpp_lib_ranges_as_rvalue) && defined(__glibcxx_want_ranges_as_rvalue) */
 #undef __glibcxx_want_ranges_as_rvalue
 
-// from version.def line 1455
+// from version.def line 1462
 #if !defined(__cpp_lib_ranges_as_const)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_as_const 202207L
@@ -1785,7 +1790,7 @@
 #endif /* !defined(__cpp_lib_ranges_as_const) && defined(__glibcxx_want_ranges_as_const) */
 #undef __glibcxx_want_ranges_as_const
 
-// from version.def line 1463
+// from version.def line 1470
 #if !defined(__cpp_lib_ranges_enumerate)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_enumerate 202302L
@@ -1796,7 +1801,7 @@
 #endif /* !defined(__cpp_lib_ranges_enumerate) && defined(__glibcxx_want_ranges_enumerate) */
 #undef __glibcxx_want_ranges_enumerate
 
-// from version.def line 1471
+// from version.def line 1478
 #if !defined(__cpp_lib_ranges_fold)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_fold 202207L
@@ -1807,7 +1812,7 @@
 #endif /* !defined(__cpp_lib_ranges_fold) && defined(__glibcxx_want_ranges_fold) */
 #undef __glibcxx_want_ranges_fold
 
-// from version.def line 1479
+// from version.def line 1486
 #if !defined(__cpp_lib_ranges_contains)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_contains 202207L
@@ -1818,7 +1823,7 @@
 #endif /* !defined(__cpp_lib_ranges_contains) && defined(__glibcxx_want_ranges_contains) */
 #undef __glibcxx_want_ranges_contains
 
-// from version.def line 1487
+// from version.def line 1494
 #if !defined(__cpp_lib_ranges_iota)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_iota 202202L
@@ -1829,7 +1834,7 @@
 #endif /* !defined(__cpp_lib_ranges_iota) && defined(__glibcxx_want_ranges_iota) */
 #undef __glibcxx_want_ranges_iota
 
-// from version.def line 1495
+// from version.def line 1502
 #if !defined(__cpp_lib_ranges_find_last)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_ranges_find_last 202207L
@@ -1840,7 +1845,7 @@
 #endif /* !defined(__cpp_lib_ranges_find_last) && defined(__glibcxx_want_ranges_find_last) */
 #undef __glibcxx_want_ranges_find_last
 
-// from version.def line 1503
+// from version.def line 1510
 #if !defined(__cpp_lib_constexpr_bitset)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED && (__cpp_constexpr_dynamic_alloc)
 #  define __glibcxx_constexpr_bitset 202202L
@@ -1851,7 +1856,7 @@
 #endif /* !defined(__cpp_lib_constexpr_bitset) && defined(__glibcxx_want_constexpr_bitset) */
 #undef __glibcxx_want_constexpr_bitset
 
-// from version.def line 1513
+// from version.def line 1520
 #if !defined(__cpp_lib_stdatomic_h)
 # if (__cplusplus >= 202302L)
 #  define __glibcxx_stdatomic_h 202011L
@@ -1862,7 +1867,7 @@
 #endif /* !defined(__cpp_lib_stdatomic_h) && defined(__glibcxx_want_stdatomic_h) */
 #undef __glibcxx_want_stdatomic_h
 
-// from version.def line 1521
+// from version.def line 1528
 #if !defined(__cpp_lib_adaptor_iterator_pair_constructor)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED
 #  define __glibcxx_adaptor_iterator_pair_constructor 202106L
@@ -1873,7 +1878,7 @@
 #endif /* !defined(__cpp_lib_adaptor_iterator_pair_constructor) && defined(__glibcxx_want_adaptor_iterator_pair_constructor) */
 #undef __glibcxx_want_adaptor_iterator_pair_constructor
 
-// from version.def line 1530
+// from version.def line 1537
 #if !defined(__cpp_lib_formatters)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED
 #  define __glibcxx_formatters 202302L
@@ -1884,7 +1889,7 @@
 #endif /* !defined(__cpp_lib_formatters) && defined(__glibcxx_want_formatters) */
 #undef __glibcxx_want_formatters
 
-// from version.def line 1539
+// from version.def line 1546
 #if !defined(__cpp_lib_ios_noreplace)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED
 #  define __glibcxx_ios_noreplace 202207L
@@ -1895,7 +1900,7 @@
 #endif /* !defined(__cpp_lib_ios_noreplace) && defined(__glibcxx_want_ios_noreplace) */
 #undef __glibcxx_want_ios_noreplace
 
-// from version.def line 1548
+// from version.def line 1555
 #if !defined(__cpp_lib_move_only_function)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED
 #  define __glibcxx_move_only_function 202110L
@@ -1906,7 +1911,7 @@
 #endif /* !defined(__cpp_lib_move_only_function) && defined(__glibcxx_want_move_only_function) */
 #undef __glibcxx_want_move_only_function
 
-// from version.def line 1557
+// from version.def line 1564
 #if !defined(__cpp_lib_spanstream)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED && (__glibcxx_span)
 #  define __glibcxx_spanstream 202106L
@@ -1917,7 +1922,7 @@
 #endif /* !defined(__cpp_lib_spanstream) && defined(__glibcxx_want_spanstream) */
 #undef __glibcxx_want_spanstream
 
-// from version.def line 1567
+// from version.def line 1574
 #if !defined(__cpp_lib_stacktrace)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED && (_GLIBCXX_HAVE_STACKTRACE)
 #  define __glibcxx_stacktrace 202011L
@@ -1928,7 +1933,7 @@
 #endif /* !defined(__cpp_lib_stacktrace) && defined(__glibcxx_want_stacktrace) */
 #undef __glibcxx_want_stacktrace
 
-// from version.def line 1577
+// from version.def line 1584
 #if !defined(__cpp_lib_string_contains)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED
 #  define __glibcxx_string_contains 202011L
@@ -1939,7 +1944,7 @@
 #endif /* !defined(__cpp_lib_string_contains) && defined(__glibcxx_want_string_contains) */
 #undef __glibcxx_want_string_contains
 
-// from version.def line 1586
+// from version.def line 1593
 #if !defined(__cpp_lib_string_resize_and_overwrite)
 # if (__cplusplus >= 202302L) && _GLIBCXX_HOSTED
 #  define __glibcxx_string_resize_and_overwrite 202110L
@@ -1950,7 +1955,7 @@
 #endif /* !defined(__cpp_lib_string_resize_and_overwrite) && defined(__glibcxx_want_string_resize_and_overwrite) */
 #undef __glibcxx_want_string_resize_and_overwrite
 
-// from version.def line 1595
+// from version.def line 1602
 #if !defined(__cpp_lib_ratio)
 # if (__cplusplus >  202302L)
 #  define __glibcxx_ratio 202306L
@@ -1961,7 +1966,7 @@
 #endif /* !defined(__cpp_lib_ratio) && defined(__glibcxx_want_ratio) */
 #undef __glibcxx_want_ratio
 
-// from version.def line 1603
+// from version.def line 1610
 #if !defined(__cpp_lib_to_string)
 # if (__cplusplus >  202302L) && _GLIBCXX_HOSTED && (__glibcxx_to_chars)
 #  define __glibcxx_to_string 202306L

diff --git a/libstdc++-v3/include/std/charconv b/libstdc++-v3/include/std/charconv
index 01711d38576a18f5cb1dfdef77d854a4db1bfc0b..7edb6ade3d4276f49bd2b9afd7ac30c2fac55429 100644 (file)
--- a/libstdc++-v3/include/std/charconv
+++ b/libstdc++-v3/include/std/charconv
@@ -62,6 +62,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #if __cplusplus > 201703L && __cpp_impl_three_way_comparison >= 201907L
     friend bool
     operator==(const to_chars_result&, const to_chars_result&) = default;
+#endif
+#if __cplusplus > 202302L
+    constexpr explicit operator bool() const noexcept { return ec == errc{}; }
 #endif
   };
 
@@ -74,6 +77,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #if __cplusplus > 201703L && __cpp_impl_three_way_comparison >= 201907L
     friend bool
     operator==(const from_chars_result&, const from_chars_result&) = default;
+#endif
+#if __cplusplus > 202302L
+    constexpr explicit operator bool() const noexcept { return ec == errc{}; }
 #endif
   };
 

diff --git a/libstdc++-v3/testsuite/20_util/from_chars/result.cc b/libstdc++-v3/testsuite/20_util/from_chars/result.cc
new file mode 100644 (file)
index 0000000..637678a
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/from_chars/result.cc
@@ -0,0 +1,21 @@
+// { dg-do run { target c++26 } }
+
+#include <charconv>
+#include <testsuite_hooks.h>
+
+void
+test_result()
+{
+  static_assert( ! std::is_convertible_v<std::from_chars_result, bool> );
+  static_assert( std::is_constructible_v<bool, std::from_chars_result> );
+
+  std::from_chars_result res{};
+  VERIFY( res );
+  res.ec = std::errc::invalid_argument;
+  VERIFY( !res );
+}
+
+int main()
+{
+  test_result();
+}

diff --git a/libstdc++-v3/testsuite/20_util/to_chars/result.cc b/libstdc++-v3/testsuite/20_util/to_chars/result.cc
new file mode 100644 (file)
index 0000000..5284680
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/to_chars/result.cc
@@ -0,0 +1,25 @@
+// { dg-do run { target c++26 } }
+
+#include <charconv>
+#include <testsuite_hooks.h>
+
+#if defined(__cpp_lib_to_chars) && __cpp_lib_to_chars < 202306L
+# error "Feature-test macro for std::to_chars has wrong value in <charconv>"
+#endif
+
+void
+test_result()
+{
+  static_assert( ! std::is_convertible_v<std::to_chars_result, bool> );
+  static_assert( std::is_constructible_v<bool, std::to_chars_result> );
+
+  std::to_chars_result res{};
+  VERIFY( res );
+  res.ec = std::errc::invalid_argument;
+  VERIFY( !res );
+}
+
+int main()
+{
+  test_result();
+}

diff --git a/libstdc++-v3/testsuite/20_util/to_chars/version.cc b/libstdc++-v3/testsuite/20_util/to_chars/version.cc
index 2789afa28efb3d17770fb618577831962d61f16e..f7866ec5377ff84b3895ed9dfd8973341dc047c3 100644 (file)
--- a/libstdc++-v3/testsuite/20_util/to_chars/version.cc
+++ b/libstdc++-v3/testsuite/20_util/to_chars/version.cc
@@ -6,7 +6,7 @@
 
 #ifndef __cpp_lib_to_chars
 # error "Feature-test macro for to_chars missing in <version>"
-#elif __cpp_lib_to_chars != 201611L
+#elif __cpp_lib_to_chars != (__cplusplus == 202302L ? 201611L : 202306L)
 # error "Feature-test macro for to_chars has wrong value in <version>"
 #endif