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[libc++] Adds a FTM v2 data file generator.
This generator converts the existing data structure to the new JSON format. Next to adding the generator add the output of the tests in a new directory beneath the existing directory. This allows validating the output for the old and new tests. (These should be almost identical.) This infrastructure allows using the new code and developing additional features without changing the existing work-flow. Then at some point we can switch from the old to the new version without a lot of additional manual work or merge conflicts. The new files are generated by the normal libcxx-generate-files cmake target that is used to update the existing FTM macros. Note the new code have no tests; the validation of the output and testing in the CI shows it works. This code will be removed in the future.
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‎libcxx/test/std/language.support/support.limits/support.limits.general/v2/algorithm.version.compile.pass.cpp‎

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‎libcxx/test/std/language.support/support.limits/support.limits.general/v2/any.version.compile.pass.cpp‎

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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// WARNING: This test was generated by
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// generate_feature_test_macro_components.py
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// and should not be edited manually.
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// <any>
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// Test the feature test macros defined by <any>
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// clang-format off
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#include <any>
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#include "test_macros.h"
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#if TEST_STD_VER < 14
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# ifdef __cpp_lib_any
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# error "__cpp_lib_any should not be defined before c++17"
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# endif
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#elif TEST_STD_VER == 14
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# ifdef __cpp_lib_any
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# error "__cpp_lib_any should not be defined before c++17"
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# endif
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#elif TEST_STD_VER == 17
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# ifndef __cpp_lib_any
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# error "__cpp_lib_any should be defined in c++17"
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# endif
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# if __cpp_lib_any != 201606L
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# error "__cpp_lib_any should have the value 201606L in c++17"
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# endif
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#elif TEST_STD_VER == 20
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# ifndef __cpp_lib_any
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# error "__cpp_lib_any should be defined in c++20"
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# endif
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# if __cpp_lib_any != 201606L
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# error "__cpp_lib_any should have the value 201606L in c++20"
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# endif
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#elif TEST_STD_VER == 23
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# ifndef __cpp_lib_any
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# error "__cpp_lib_any should be defined in c++23"
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# endif
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# if __cpp_lib_any != 201606L
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# error "__cpp_lib_any should have the value 201606L in c++23"
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# endif
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#elif TEST_STD_VER > 23
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# ifndef __cpp_lib_any
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# error "__cpp_lib_any should be defined in c++26"
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# endif
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# if __cpp_lib_any != 201606L
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# error "__cpp_lib_any should have the value 201606L in c++26"
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# endif
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#endif // TEST_STD_VER > 23
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// clang-format on
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‎libcxx/test/std/language.support/support.limits/support.limits.general/v2/array.version.compile.pass.cpp‎

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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// WARNING: This test was generated by
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// generate_feature_test_macro_components.py
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// and should not be edited manually.
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// <array>
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// Test the feature test macros defined by <array>
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// clang-format off
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#include <array>
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#include "test_macros.h"
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#if TEST_STD_VER < 14
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# ifdef __cpp_lib_array_constexpr
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# error "__cpp_lib_array_constexpr should not be defined before c++17"
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# endif
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# ifdef __cpp_lib_freestanding_array
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# error "__cpp_lib_freestanding_array should not be defined before c++26"
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# endif
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# ifdef __cpp_lib_nonmember_container_access
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# error "__cpp_lib_nonmember_container_access should not be defined before c++17"
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# endif
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# ifdef __cpp_lib_to_array
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# error "__cpp_lib_to_array should not be defined before c++20"
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# endif
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#elif TEST_STD_VER == 14
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# ifdef __cpp_lib_array_constexpr
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# error "__cpp_lib_array_constexpr should not be defined before c++17"
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# endif
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# ifdef __cpp_lib_freestanding_array
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# error "__cpp_lib_freestanding_array should not be defined before c++26"
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# endif
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# ifdef __cpp_lib_nonmember_container_access
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# error "__cpp_lib_nonmember_container_access should not be defined before c++17"
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# endif
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# ifdef __cpp_lib_to_array
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# error "__cpp_lib_to_array should not be defined before c++20"
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# endif
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#elif TEST_STD_VER == 17
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# ifndef __cpp_lib_array_constexpr
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# error "__cpp_lib_array_constexpr should be defined in c++17"
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# endif
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# if __cpp_lib_array_constexpr != 201603L
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# error "__cpp_lib_array_constexpr should have the value 201603L in c++17"
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# endif
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# ifdef __cpp_lib_freestanding_array
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# error "__cpp_lib_freestanding_array should not be defined before c++26"
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# endif
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# ifndef __cpp_lib_nonmember_container_access
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# error "__cpp_lib_nonmember_container_access should be defined in c++17"
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# endif
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# if __cpp_lib_nonmember_container_access != 201411L
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# error "__cpp_lib_nonmember_container_access should have the value 201411L in c++17"
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# endif
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# ifdef __cpp_lib_to_array
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# error "__cpp_lib_to_array should not be defined before c++20"
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# endif
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#elif TEST_STD_VER == 20
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# ifndef __cpp_lib_array_constexpr
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# error "__cpp_lib_array_constexpr should be defined in c++20"
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# endif
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# if __cpp_lib_array_constexpr != 201811L
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# error "__cpp_lib_array_constexpr should have the value 201811L in c++20"
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# endif
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# ifdef __cpp_lib_freestanding_array
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# error "__cpp_lib_freestanding_array should not be defined before c++26"
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# endif
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# ifndef __cpp_lib_nonmember_container_access
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# error "__cpp_lib_nonmember_container_access should be defined in c++20"
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# endif
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# if __cpp_lib_nonmember_container_access != 201411L
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# error "__cpp_lib_nonmember_container_access should have the value 201411L in c++20"
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# endif
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# ifndef __cpp_lib_to_array
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# error "__cpp_lib_to_array should be defined in c++20"
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# endif
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# if __cpp_lib_to_array != 201907L
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# error "__cpp_lib_to_array should have the value 201907L in c++20"
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# endif
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#elif TEST_STD_VER == 23
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# ifndef __cpp_lib_array_constexpr
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# error "__cpp_lib_array_constexpr should be defined in c++23"
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# endif
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# if __cpp_lib_array_constexpr != 201811L
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# error "__cpp_lib_array_constexpr should have the value 201811L in c++23"
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# endif
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# ifdef __cpp_lib_freestanding_array
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# error "__cpp_lib_freestanding_array should not be defined before c++26"
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# endif
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# ifndef __cpp_lib_nonmember_container_access
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# error "__cpp_lib_nonmember_container_access should be defined in c++23"
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# endif
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# if __cpp_lib_nonmember_container_access != 201411L
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# error "__cpp_lib_nonmember_container_access should have the value 201411L in c++23"
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# endif
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# ifndef __cpp_lib_to_array
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# error "__cpp_lib_to_array should be defined in c++23"
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# endif
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# if __cpp_lib_to_array != 201907L
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# error "__cpp_lib_to_array should have the value 201907L in c++23"
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# endif
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#elif TEST_STD_VER > 23
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# ifndef __cpp_lib_array_constexpr
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# error "__cpp_lib_array_constexpr should be defined in c++26"
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# endif
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# if __cpp_lib_array_constexpr != 201811L
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# error "__cpp_lib_array_constexpr should have the value 201811L in c++26"
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# endif
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# if !defined(_LIBCPP_VERSION)
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# ifndef __cpp_lib_freestanding_array
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# error "__cpp_lib_freestanding_array should be defined in c++26"
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# endif
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# if __cpp_lib_freestanding_array != 202311L
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# error "__cpp_lib_freestanding_array should have the value 202311L in c++26"
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# endif
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# else
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# ifdef __cpp_lib_freestanding_array
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# error "__cpp_lib_freestanding_array should not be defined because it is unimplemented in libc++!"
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# endif
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# endif
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# ifndef __cpp_lib_nonmember_container_access
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# error "__cpp_lib_nonmember_container_access should be defined in c++26"
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# endif
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# if __cpp_lib_nonmember_container_access != 201411L
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# error "__cpp_lib_nonmember_container_access should have the value 201411L in c++26"
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# endif
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# ifndef __cpp_lib_to_array
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# error "__cpp_lib_to_array should be defined in c++26"
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# endif
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# if __cpp_lib_to_array != 201907L
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# error "__cpp_lib_to_array should have the value 201907L in c++26"
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# endif
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#endif // TEST_STD_VER > 23
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// clang-format on
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