Add C++23 feature test macro support.

Add C++23 header macros.

.drone.star

@@ -43,9 +43,9 @@ def main(ctx):
   linux_cxx("clang++-8 03,11,14,17", "clang++-8", packages="clang-8", llvm_os="xenial", llvm_ver="8", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-8', 'CXXSTD': '03,11,14,17,2a', }, globalenv=globalenv),
   linux_cxx("clang++-9 03,11,14,17,2a", "clang++-9", packages="clang-9", llvm_os="xenial", llvm_ver="9", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-9', 'CXXSTD': '03,11,14,17,2a', }, globalenv=globalenv),
   linux_cxx("clang++-10 03,11,14,17,20", "clang++-10", packages="clang-10", llvm_os="xenial", llvm_ver="10", buildtype="boost", image="cppalliance/droneubuntu1804:1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++-10', 'CXXSTD': '03,11,14,17,20', }, globalenv=globalenv),
+  linux_cxx("Ubuntu g++-13", packages="g++-13", buildtype="boost", image="cppalliance/droneubuntu2304:1", environment={'TOOLSET': 'gcc', 'COMPILER': 'g++-13', 'CXXSTD': '14,17,20,23', }, globalenv=globalenv),
   osx_cxx("XCode-11.7 03,11,17,2a", "clang++", packages="", buildtype="boost", xcode_version="11.7", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++', 'CXXSTD': '03,11,14,17,2a', }, globalenv=globalenv),
   osx_cxx("XCode-10.2 03,11,17,2a", "clang++", packages="", buildtype="boost", xcode_version="10.2", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++', 'CXXSTD': '03,11,14,17,2a', }, globalenv=globalenv),
-  osx_cxx("XCode-9.4.1 03,11,14,17", "clang++", packages="", buildtype="boost", xcode_version="9.4.1", environment={'TOOLSET': 'clang', 'COMPILER': 'clang++', 'CXXSTD': '03,11,14,17', }, globalenv=globalenv),
   ]
 
 # from https://github.com/boostorg/boost-ci

.github/workflows/ci.yml

@@ -328,7 +328,7 @@ jobs:
         run: ..\..\..\b2 print_config_info cxxstd=14,17,latest address-model=64 toolset=msvc-14.3
         working-directory: ../boost-root/libs/config/test
       - name: Test
-        run: ..\..\..\b2 --hash address-model=64 cxxstd=14,17,latest toolset=msvc-14.3
+        run: ..\..\..\b2 --hash address-model=64 cxxstd=14,17,20,latest toolset=msvc-14.3
         working-directory: ../boost-root/libs/config/test
   windows_clang_msvc_14_3:
     runs-on: windows-2022
@@ -570,9 +570,6 @@ jobs:
       - name: Config_test nvcc+clang
         run: nvcc -std=c++${{ matrix.std }} --compiler-bindir=clang++ -o config_test -I../../.. config_test.cpp  -latomic && ./config_test
         working-directory: ../boost-root/libs/config/test
-      - name: Config_test nvcc-cuda+clang
-        run: nvcc -c -std=c++${{ matrix.std }} --compiler-bindir=clang++ -I../../.. config_test.cu
-        working-directory: ../boost-root/libs/config/test
       - name: Config_test clang-cuda
         run: clang++ -nocudalib --no-cuda-version-check -c --cuda-gpu-arch=sm_75 -std=c++${{ matrix.std }} -I../../.. config_test.cu
         working-directory: ../boost-root/libs/config/test

checks/Jamfile.v2

@@ -1,6 +1,6 @@
 #
 # *** DO NOT EDIT THIS FILE BY HAND ***
-# This file was automatically generated on Sun Jun  5 16:50:18 2022
+# This file was automatically generated on Fri Oct 13 19:09:38 2023
 #  by libs/config/tools/generate.cpp
 # Copyright John Maddock.
 # Use, modification and distribution are subject to the 
@@ -68,6 +68,7 @@ obj cxx03 : test_case.cpp : <define>TEST_BOOST_NO_CXX03 ;
 obj cxx11 : test_case.cpp : <define>TEST_BOOST_NO_CXX11 ;
 obj cxx11_addressof : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ADDRESSOF ;
 obj cxx11_alignas : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ALIGNAS ;
+obj cxx11_alignof : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ALIGNOF ;
 obj cxx11_allocator : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ALLOCATOR ;
 obj cxx11_atomic_smart_ptr : test_case.cpp : <define>TEST_BOOST_NO_CXX11_ATOMIC_SMART_PTR ;
 obj cxx11_defaulted_moves : test_case.cpp : <define>TEST_BOOST_NO_CXX11_DEFAULTED_MOVES ;
@@ -149,6 +150,15 @@ obj cxx20_hdr_span : test_case.cpp : <define>TEST_BOOST_NO_CXX20_HDR_SPAN ;
 obj cxx20_hdr_stop_token : test_case.cpp : <define>TEST_BOOST_NO_CXX20_HDR_STOP_TOKEN ;
 obj cxx20_hdr_syncstream : test_case.cpp : <define>TEST_BOOST_NO_CXX20_HDR_SYNCSTREAM ;
 obj cxx20_hdr_version : test_case.cpp : <define>TEST_BOOST_NO_CXX20_HDR_VERSION ;
+obj cxx23_hdr_expected : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_EXPECTED ;
+obj cxx23_hdr_flat_map : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_FLAT_MAP ;
+obj cxx23_hdr_flat_set : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_FLAT_SET ;
+obj cxx23_hdr_generator : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_GENERATOR ;
+obj cxx23_hdr_mdspan : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_MDSPAN ;
+obj cxx23_hdr_print : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_PRINT ;
+obj cxx23_hdr_spanstream : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_SPANSTREAM ;
+obj cxx23_hdr_stacktrace : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_STACKTRACE ;
+obj cxx23_hdr_stdfloat : test_case.cpp : <define>TEST_BOOST_NO_CXX23_HDR_STDFLOAT ;
 obj cxx98_binders : test_case.cpp : <define>TEST_BOOST_NO_CXX98_BINDERS ;
 obj cxx98_function_base : test_case.cpp : <define>TEST_BOOST_NO_CXX98_FUNCTION_BASE ;
 obj cxx98_random_shuffle : test_case.cpp : <define>TEST_BOOST_NO_CXX98_RANDOM_SHUFFLE ;
@@ -235,6 +245,24 @@ obj cxx11_variadic_macros : test_case.cpp : <define>TEST_BOOST_NO_CXX11_VARIADIC
 obj cxx11_variadic_templates : test_case.cpp : <define>TEST_BOOST_NO_CXX11_VARIADIC_TEMPLATES ;
 obj void_returns : test_case.cpp : <define>TEST_BOOST_NO_VOID_RETURNS ;
 obj intrinsic_wchar_t : test_case.cpp : <define>TEST_BOOST_NO_INTRINSIC_WCHAR_T ;
+obj cpp_consteval_23 : std/cpp_consteval_23.cpp ;
+alias cpp_consteval : cpp_consteval_23 ;
+obj cpp_explicit_this_parameter_23 : std/cpp_explicit_this_parameter_23.cpp ;
+alias cpp_explicit_this_parameter : cpp_explicit_this_parameter_23 ;
+obj cpp_if_consteval_23 : std/cpp_if_consteval_23.cpp ;
+alias cpp_if_consteval : cpp_if_consteval_23 ;
+obj cpp_implicit_move_23 : std/cpp_implicit_move_23.cpp ;
+alias cpp_implicit_move : cpp_implicit_move_23 ;
+obj cpp_multidimensional_subscript_23 : std/cpp_multidimensional_subscript_23.cpp ;
+alias cpp_multidimensional_subscript : cpp_multidimensional_subscript_23 ;
+obj cpp_named_character_escapes_23 : std/cpp_named_character_escapes_23.cpp ;
+alias cpp_named_character_escapes : cpp_named_character_escapes_23 ;
+obj cpp_range_based_for_23 : std/cpp_range_based_for_23.cpp ;
+alias cpp_range_based_for : cpp_range_based_for_23 ;
+obj cpp_size_t_suffix_23 : std/cpp_size_t_suffix_23.cpp ;
+alias cpp_size_t_suffix : cpp_size_t_suffix_23 ;
+obj cpp_static_call_operator_23 : std/cpp_static_call_operator_23.cpp ;
+alias cpp_static_call_operator : cpp_static_call_operator_23 ;
 obj cpp_impl_destroying_delete_20 : std/cpp_impl_destroying_delete_20.cpp ;
 alias cpp_impl_destroying_delete : cpp_impl_destroying_delete_20 ;
 obj cpp_lib_destroying_delete_20 : std/cpp_lib_destroying_delete_20.cpp ;

checks/std/cpp_aggregate_bases_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_aggregate_nsdmi_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_alias_templates_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_aligned_new_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_attributes_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_binary_literals_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_capture_star_this_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_char8_t_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_conditional_explicit_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_consteval_23.cpp

@@ -0,0 +1,30 @@
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-21.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_consteval
+#error "Macro << __cpp_consteval is not set"
+#endif
+
+#if __cpp_consteval < 202211
+#error "Macro __cpp_consteval had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+

checks/std/cpp_constexpr_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_constexpr_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_constexpr_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_decltype_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_decltype_auto_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_deduction_guides_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_delegating_constructors_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_enumerator_attributes_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_exceptions_03.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_explicit_conversion_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_explicit_this_parameter_23.cpp

@@ -0,0 +1,30 @@
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-21.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_explicit_this_parameter
+#error "Macro << __cpp_explicit_this_parameter is not set"
+#endif
+
+#if __cpp_explicit_this_parameter < 202110
+#error "Macro __cpp_explicit_this_parameter had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+

checks/std/cpp_fold_expressions_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_generic_lambdas_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_guaranteed_copy_elision_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_hex_float_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_if_consteval_23.cpp

@@ -0,0 +1,30 @@
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-21.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_if_consteval
+#error "Macro << __cpp_if_consteval is not set"
+#endif
+
+#if __cpp_if_consteval < 202106
+#error "Macro __cpp_if_consteval had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+

checks/std/cpp_if_constexpr_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_impl_destroying_delete_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_impl_three_way_comparison_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_implicit_move_23.cpp

@@ -0,0 +1,30 @@
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
+//  by libs/config/tools/generate.cpp
+//  Copyright John Maddock 2002-21.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for the most recent version.//
+//  Revision $Id$
+//
+
+#ifdef __has_include
+#if __has_include(<version>)
+#include <version>
+#endif
+#endif
+
+#ifndef __cpp_implicit_move
+#error "Macro << __cpp_implicit_move is not set"
+#endif
+
+#if __cpp_implicit_move < 202207
+#error "Macro __cpp_implicit_move had too low a value"
+#endif
+
+int main( int, char *[] )
+{
+   return 0;
+}
+

checks/std/cpp_inheriting_constructors_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_inheriting_constructors_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_init_captures_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_initializer_lists_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_inline_variables_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lambdas_11.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_addressof_constexpr_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_allocator_traits_is_always_equal_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_any_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_apply_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_array_constexpr_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_as_const_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_atomic_is_always_lock_free_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_atomic_ref_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_bind_front_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_bit_cast_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_bool_constant_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_boyer_moore_searcher_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_byte_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_char8_t_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_chrono_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_chrono_udls_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_clamp_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_complex_udls_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_concepts_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_constexpr_misc_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_constexpr_swap_algorithms_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_destroying_delete_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_enable_shared_from_this_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_erase_if_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_exchange_function_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_execution_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_filesystem_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_gcd_lcm_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_generic_associative_lookup_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_generic_unordered_lookup_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_hardware_interference_size_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_has_unique_object_representations_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_hypot_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_incomplete_container_elements_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_integer_sequence_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_integral_constant_callable_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_invoke_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_is_aggregate_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_is_constant_evaluated_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_is_final_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_is_invocable_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_is_null_pointer_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_is_swappable_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_launder_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_list_remove_return_type_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_logical_traits_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_make_from_tuple_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_make_reverse_iterator_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_make_unique_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_map_try_emplace_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_math_special_functions_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_memory_resource_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_node_extract_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_nonmember_container_access_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_not_fn_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_null_iterators_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_optional_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_parallel_algorithm_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_quoted_string_io_14.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_ranges_20.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the 

checks/std/cpp_lib_raw_memory_algorithms_17.cpp

@@ -1,4 +1,4 @@
-//  This file was automatically generated on Thu Feb  3 18:10:41 2022
+//  This file was automatically generated on Fri Oct 13 19:09:38 2023
 //  by libs/config/tools/generate.cpp
 //  Copyright John Maddock 2002-21.
 //  Use, modification and distribution are subject to the