Rebase onto main to resolve conflicts

Author: winner245

libcxx/test/std/language.support/support.limits/support.limits.general/list.version.compile.pass.cpp

@@ -24,6 +24,10 @@
 #    error "__cpp_lib_allocator_traits_is_always_equal should not be defined before c++17"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifdef __cpp_lib_containers_ranges
 #    error "__cpp_lib_containers_ranges should not be defined before c++23"
 #  endif
@@ -54,6 +58,10 @@
 #    error "__cpp_lib_allocator_traits_is_always_equal should not be defined before c++17"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifdef __cpp_lib_containers_ranges
 #    error "__cpp_lib_containers_ranges should not be defined before c++23"
 #  endif
@@ -87,6 +95,10 @@
 #    error "__cpp_lib_allocator_traits_is_always_equal should have the value 201411L in c++17"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifdef __cpp_lib_containers_ranges
 #    error "__cpp_lib_containers_ranges should not be defined before c++23"
 #  endif
@@ -126,6 +138,10 @@
 #    error "__cpp_lib_allocator_traits_is_always_equal should have the value 201411L in c++20"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifdef __cpp_lib_containers_ranges
 #    error "__cpp_lib_containers_ranges should not be defined before c++23"
 #  endif
@@ -171,6 +187,10 @@
 #    error "__cpp_lib_allocator_traits_is_always_equal should have the value 201411L in c++23"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifndef __cpp_lib_containers_ranges
 #    error "__cpp_lib_containers_ranges should be defined in c++23"
 #  endif
@@ -219,6 +239,13 @@
 #    error "__cpp_lib_allocator_traits_is_always_equal should have the value 201411L in c++26"
 #  endif
 
+#  ifndef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should be defined in c++26"
+#  endif
+#  if __cpp_lib_constexpr_list != 202502L
+#    error "__cpp_lib_constexpr_list should have the value 202502L in c++26"
+#  endif
+
 #  ifndef __cpp_lib_containers_ranges
 #    error "__cpp_lib_containers_ranges should be defined in c++26"
 #  endif

libcxx/test/std/language.support/support.limits/support.limits.general/version.version.compile.pass.cpp

@@ -204,6 +204,10 @@
 #    error "__cpp_lib_constexpr_iterator should not be defined before c++20"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifdef __cpp_lib_constexpr_memory
 #    error "__cpp_lib_constexpr_memory should not be defined before c++20"
 #  endif
@@ -1092,6 +1096,10 @@
 #    error "__cpp_lib_constexpr_iterator should not be defined before c++20"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifdef __cpp_lib_constexpr_memory
 #    error "__cpp_lib_constexpr_memory should not be defined before c++20"
 #  endif
@@ -2082,6 +2090,10 @@
 #    error "__cpp_lib_constexpr_iterator should not be defined before c++20"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifdef __cpp_lib_constexpr_memory
 #    error "__cpp_lib_constexpr_memory should not be defined before c++20"
 #  endif
@@ -3318,6 +3330,10 @@
 #    error "__cpp_lib_constexpr_iterator should have the value 201811L in c++20"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifndef __cpp_lib_constexpr_memory
 #    error "__cpp_lib_constexpr_memory should be defined in c++20"
 #  endif
@@ -4770,6 +4786,10 @@
 #    error "__cpp_lib_constexpr_iterator should have the value 201811L in c++23"
 #  endif
 
+#  ifdef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should not be defined before c++26"
+#  endif
+
 #  ifndef __cpp_lib_constexpr_memory
 #    error "__cpp_lib_constexpr_memory should be defined in c++23"
 #  endif
@@ -6441,6 +6461,13 @@
 #    error "__cpp_lib_constexpr_iterator should have the value 201811L in c++26"
 #  endif
 
+#  ifndef __cpp_lib_constexpr_list
+#    error "__cpp_lib_constexpr_list should be defined in c++26"
+#  endif
+#  if __cpp_lib_constexpr_list != 202502L
+#    error "__cpp_lib_constexpr_list should have the value 202502L in c++26"
+#  endif
+
 #  ifndef __cpp_lib_constexpr_memory
 #    error "__cpp_lib_constexpr_memory should be defined in c++26"
 #  endif