forked from OSchip/llvm-project
1169 lines
37 KiB
Python
Executable File
1169 lines
37 KiB
Python
Executable File
#!/usr/bin/env python
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import os
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from builtins import range
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from functools import reduce
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def get_libcxx_paths():
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utils_path = os.path.dirname(os.path.abspath(__file__))
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script_name = os.path.basename(__file__)
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assert os.path.exists(utils_path)
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src_root = os.path.dirname(utils_path)
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include_path = os.path.join(src_root, 'include')
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assert os.path.exists(include_path)
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docs_path = os.path.join(src_root, 'docs')
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assert os.path.exists(docs_path)
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macro_test_path = os.path.join(src_root, 'test', 'std', 'language.support',
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'support.limits', 'support.limits.general')
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assert os.path.exists(macro_test_path)
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assert os.path.exists(os.path.join(macro_test_path, 'version.version.pass.cpp'))
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return script_name, src_root, include_path, docs_path, macro_test_path
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script_name, source_root, include_path, docs_path, macro_test_path = get_libcxx_paths()
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def has_header(h):
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h_path = os.path.join(include_path, h)
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return os.path.exists(h_path)
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def add_version_header(tc):
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tc["headers"].append("version")
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return tc
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# ================ ============================================================
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# Field Description
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# ================ ============================================================
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# name The name of the feature-test macro.
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# values A dict whose keys are C++ versions and whose values are the
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# value of the feature-test macro for that C++ version.
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# (TODO: This isn't a very clean model for feature-test
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# macros affected by multiple papers.)
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# headers An array with the headers that should provide the
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# feature-test macro.
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# test_suite_guard An optional string field. When this field is provided,
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# `libcxx_guard` must also be provided. This field is used
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# only to generate the unit tests for the feature-test macros.
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# It can't depend on macros defined in <__config> because the
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# `test/std/` parts of the test suite are intended to be
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# portable to any C++ standard library implementation, not
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# just libc++. It may depend on
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# * macros defined by the compiler itself, or
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# * macros generated by CMake.
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# In some cases we add
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# `&& !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM_...)`
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# in order to make libc++ pass the tests on OSX; see D94983.
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# libcxx_guard An optional string field. When this field is provided,
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# `test_suite_guard` must also be provided. This field is used
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# only to guard the feature-test macro in <version>. It may
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# be the same as `test_suite_guard`, or it may depend on
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# macros defined in <__config>.
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# unimplemented An optional Boolean field with the value `True`. This field
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# is only used when a feature isn't fully implemented. Once
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# you've fully implemented the feature, you should remove
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# this field.
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# ================ ============================================================
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feature_test_macros = [ add_version_header(x) for x in [
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{
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"name": "__cpp_lib_adaptor_iterator_pair_constructor",
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"values": { "c++2b": 202106 },
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"headers": ["queue", "stack"],
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}, {
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"name": "__cpp_lib_addressof_constexpr",
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"values": { "c++17": 201603 },
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"headers": ["memory"],
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}, {
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"name": "__cpp_lib_allocate_at_least",
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"values": { "c++2b": 202106 },
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"headers": ["memory"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_allocator_traits_is_always_equal",
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"values": { "c++17": 201411 },
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"headers": ["deque", "forward_list", "list", "map", "memory", "scoped_allocator", "set", "string", "unordered_map", "unordered_set", "vector"],
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}, {
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"name": "__cpp_lib_any",
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"values": { "c++17": 201606 },
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"headers": ["any"],
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}, {
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"name": "__cpp_lib_apply",
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"values": { "c++17": 201603 },
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"headers": ["tuple"],
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}, {
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"name": "__cpp_lib_array_constexpr",
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"values": { "c++17": 201603, "c++20": 201811 },
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"headers": ["array", "iterator"],
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}, {
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"name": "__cpp_lib_as_const",
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"values": { "c++17": 201510 },
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"headers": ["utility"],
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}, {
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"name": "__cpp_lib_associative_heterogeneous_erasure",
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"values": { "c++2b": 202110 },
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"headers": ["map", "set", "unordered_map", "unordered_set"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_assume_aligned",
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"values": { "c++20": 201811 },
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"headers": ["memory"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_atomic_flag_test",
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"values": { "c++20": 201907 },
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"headers": ["atomic"],
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}, {
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"name": "__cpp_lib_atomic_float",
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"values": { "c++20": 201711 },
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"headers": ["atomic"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_atomic_is_always_lock_free",
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"values": { "c++17": 201603 },
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"headers": ["atomic"],
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}, {
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"name": "__cpp_lib_atomic_lock_free_type_aliases",
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"values": { "c++20": 201907 },
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"headers": ["atomic"],
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}, {
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"name": "__cpp_lib_atomic_ref",
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"values": { "c++20": 201806 },
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"headers": ["atomic"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_atomic_shared_ptr",
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"values": { "c++20": 201711 },
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"headers": ["atomic"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_atomic_value_initialization",
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"values": { "c++20": 201911 },
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"headers": ["atomic", "memory"],
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}, {
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"name": "__cpp_lib_atomic_wait",
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"values": { "c++20": 201907 },
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"headers": ["atomic"],
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"test_suite_guard": "!defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_atomic_wait)",
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"libcxx_guard": "!defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_atomic_wait)",
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}, {
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"name": "__cpp_lib_barrier",
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"values": { "c++20": 201907 },
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"headers": ["barrier"],
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"test_suite_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_barrier)",
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"libcxx_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_barrier)",
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}, {
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"name": "__cpp_lib_bind_front",
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"values": { "c++20": 201907 },
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"headers": ["functional"],
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}, {
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"name": "__cpp_lib_bit_cast",
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"values": { "c++20": 201806 },
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"headers": ["bit"],
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}, {
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"name": "__cpp_lib_bitops",
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"values": { "c++20": 201907 },
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"headers": ["bit"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_bool_constant",
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"values": { "c++17": 201505 },
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"headers": ["type_traits"],
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}, {
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"name": "__cpp_lib_bounded_array_traits",
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"values": { "c++20": 201902 },
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"headers": ["type_traits"],
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}, {
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"name": "__cpp_lib_boyer_moore_searcher",
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"values": { "c++17": 201603 },
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"headers": ["functional"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_byte",
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"values": { "c++17": 201603 },
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"headers": ["cstddef"],
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}, {
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"name": "__cpp_lib_byteswap",
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"values": { "c++2b": 202110 },
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"headers": ["bit"],
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}, {
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"name": "__cpp_lib_char8_t",
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"values": { "c++20": 201811 },
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"headers": ["atomic", "filesystem", "istream", "limits", "locale", "ostream", "string", "string_view"],
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"test_suite_guard": "defined(__cpp_char8_t)",
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"libcxx_guard": "!defined(_LIBCPP_HAS_NO_CHAR8_T)",
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}, {
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"name": "__cpp_lib_chrono",
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"values": { "c++17": 201611 },
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"headers": ["chrono"],
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}, {
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"name": "__cpp_lib_chrono_udls",
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"values": { "c++14": 201304 },
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"headers": ["chrono"],
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}, {
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"name": "__cpp_lib_clamp",
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"values": { "c++17": 201603 },
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"headers": ["algorithm"],
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}, {
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"name": "__cpp_lib_complex_udls",
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"values": { "c++14": 201309 },
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"headers": ["complex"],
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}, {
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"name": "__cpp_lib_concepts",
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"values": { "c++20": 202002 },
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"headers": ["concepts"],
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}, {
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"name": "__cpp_lib_constexpr_algorithms",
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"values": { "c++20": 201806 },
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"headers": ["algorithm"],
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}, {
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"name": "__cpp_lib_constexpr_complex",
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"values": { "c++20": 201711 },
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"headers": ["complex"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_constexpr_dynamic_alloc",
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"values": { "c++20": 201907 },
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"headers": ["memory"],
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}, {
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"name": "__cpp_lib_constexpr_functional",
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"values": { "c++20": 201907 },
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"headers": ["functional"],
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}, {
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"name": "__cpp_lib_constexpr_iterator",
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"values": { "c++20": 201811 },
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"headers": ["iterator"],
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}, {
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"name": "__cpp_lib_constexpr_memory",
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"values": { "c++20": 201811 },
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"headers": ["memory"],
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}, {
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"name": "__cpp_lib_constexpr_numeric",
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"values": { "c++20": 201911 },
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"headers": ["numeric"],
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}, {
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"name": "__cpp_lib_constexpr_string",
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"values": { "c++20": 201811 }, # because P1032R1 is implemented; but should become 201907 after P0980R1
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"headers": ["string"],
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}, {
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"name": "__cpp_lib_constexpr_string_view",
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"values": { "c++20": 201811 },
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"headers": ["string_view"],
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}, {
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"name": "__cpp_lib_constexpr_tuple",
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"values": { "c++20": 201811 },
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"headers": ["tuple"],
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}, {
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"name": "__cpp_lib_constexpr_typeinfo",
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"values": { "c++2b": 202106 },
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"headers": ["typeinfo"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_constexpr_utility",
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"values": { "c++20": 201811 },
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"headers": ["utility"],
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}, {
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"name": "__cpp_lib_constexpr_vector",
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"values": { "c++20": 201907 },
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"headers": ["vector"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_coroutine",
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"values": { "c++20": 201902 },
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"headers": ["coroutine"],
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}, {
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"name": "__cpp_lib_destroying_delete",
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"values": { "c++20": 201806 },
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"headers": ["new"],
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"test_suite_guard": "TEST_STD_VER > 17 && defined(__cpp_impl_destroying_delete) && __cpp_impl_destroying_delete >= 201806L",
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"libcxx_guard": "_LIBCPP_STD_VER > 17 && defined(__cpp_impl_destroying_delete) && __cpp_impl_destroying_delete >= 201806L",
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}, {
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"name": "__cpp_lib_enable_shared_from_this",
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"values": { "c++17": 201603 },
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"headers": ["memory"],
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}, {
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"name": "__cpp_lib_endian",
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"values": { "c++20": 201907 },
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"headers": ["bit"],
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}, {
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"name": "__cpp_lib_erase_if",
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"values": { "c++20": 202002 },
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"headers": ["deque", "forward_list", "list", "map", "set", "string", "unordered_map", "unordered_set", "vector"],
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}, {
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"name": "__cpp_lib_exchange_function",
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"values": { "c++14": 201304 },
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"headers": ["utility"],
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}, {
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"name": "__cpp_lib_execution",
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"values": { "c++17": 201603, "c++20": 201902 },
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"headers": ["execution"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_filesystem",
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"values": { "c++17": 201703 },
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"headers": ["filesystem"],
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"test_suite_guard": "!defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_filesystem)",
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"libcxx_guard": "!defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_filesystem)"
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}, {
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"name": "__cpp_lib_format",
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"values": { "c++20": 202106 },
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"headers": ["format"],
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"test_suite_guard": "!defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_format)",
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"libcxx_guard": "!defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_format)",
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_gcd_lcm",
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"values": { "c++17": 201606 },
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"headers": ["numeric"],
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}, {
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"name": "__cpp_lib_generic_associative_lookup",
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"values": { "c++14": 201304 },
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"headers": ["map", "set"],
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}, {
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"name": "__cpp_lib_generic_unordered_lookup",
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"values": { "c++20": 201811 },
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"headers": ["unordered_map", "unordered_set"],
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}, {
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"name": "__cpp_lib_hardware_interference_size",
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"values": { "c++17": 201703 },
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"headers": ["new"],
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"unimplemented": True,
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}, {
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"name": "__cpp_lib_has_unique_object_representations",
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"values": { "c++17": 201606 },
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"headers": ["type_traits"],
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}, {
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"name": "__cpp_lib_hypot",
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"values": { "c++17": 201603 },
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"headers": ["cmath"],
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}, {
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"name": "__cpp_lib_incomplete_container_elements",
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"values": { "c++17": 201505 },
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"headers": ["forward_list", "list", "vector"],
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}, {
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"name": "__cpp_lib_int_pow2",
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"values": { "c++20": 202002 },
|
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"headers": ["bit"],
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}, {
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"name": "__cpp_lib_integer_comparison_functions",
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"values": { "c++20": 202002 },
|
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"headers": ["utility"],
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"test_suite_guard": "defined(__cpp_concepts) && __cpp_concepts >= 201907L",
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"libcxx_guard": "!defined(_LIBCPP_HAS_NO_CONCEPTS)",
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}, {
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"name": "__cpp_lib_integer_sequence",
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"values": { "c++14": 201304 },
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"headers": ["utility"],
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}, {
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"name": "__cpp_lib_integral_constant_callable",
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"values": { "c++14": 201304 },
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"headers": ["type_traits"],
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}, {
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"name": "__cpp_lib_interpolate",
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"values": { "c++20": 201902 },
|
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"headers": ["cmath", "numeric"],
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}, {
|
|
"name": "__cpp_lib_invoke",
|
|
"values": { "c++17": 201411 },
|
|
"headers": ["functional"],
|
|
}, {
|
|
"name": "__cpp_lib_invoke_r",
|
|
"values": { "c++2b": 202106 },
|
|
"headers": ["functional"],
|
|
"unimplemented": True,
|
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}, {
|
|
"name": "__cpp_lib_is_aggregate",
|
|
"values": { "c++17": 201703 },
|
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"headers": ["type_traits"],
|
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}, {
|
|
"name": "__cpp_lib_is_constant_evaluated",
|
|
"values": { "c++20": 201811 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_is_final",
|
|
"values": { "c++14": 201402 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_is_invocable",
|
|
"values": { "c++17": 201703 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_is_layout_compatible",
|
|
"values": { "c++20": 201907 },
|
|
"headers": ["type_traits"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_is_nothrow_convertible",
|
|
"values": { "c++20": 201806 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_is_null_pointer",
|
|
"values": { "c++14": 201309 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_is_pointer_interconvertible",
|
|
"values": { "c++20": 201907 },
|
|
"headers": ["type_traits"],
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|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_is_scoped_enum",
|
|
"values": { "c++2b": 202011 },
|
|
"headers": ["type_traits"],
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|
}, {
|
|
"name": "__cpp_lib_is_swappable",
|
|
"values": { "c++17": 201603 },
|
|
"headers": ["type_traits"],
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}, {
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|
"name": "__cpp_lib_jthread",
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|
"values": { "c++20": 201911 },
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|
"headers": ["stop_token", "thread"],
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|
"test_suite_guard": "!defined(_LIBCPP_HAS_NO_THREADS)",
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|
"libcxx_guard": "!defined(_LIBCPP_HAS_NO_THREADS)",
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"unimplemented": True,
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}, {
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|
"name": "__cpp_lib_latch",
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|
"values": { "c++20": 201907 },
|
|
"headers": ["latch"],
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|
"test_suite_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_latch)",
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|
"libcxx_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_latch)",
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|
}, {
|
|
"name": "__cpp_lib_launder",
|
|
"values": { "c++17": 201606 },
|
|
"headers": ["new"],
|
|
}, {
|
|
"name": "__cpp_lib_list_remove_return_type",
|
|
"values": { "c++20": 201806 },
|
|
"headers": ["forward_list", "list"],
|
|
}, {
|
|
"name": "__cpp_lib_logical_traits",
|
|
"values": { "c++17": 201510 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_make_from_tuple",
|
|
"values": { "c++17": 201606 },
|
|
"headers": ["tuple"],
|
|
}, {
|
|
"name": "__cpp_lib_make_reverse_iterator",
|
|
"values": { "c++14": 201402 },
|
|
"headers": ["iterator"],
|
|
}, {
|
|
"name": "__cpp_lib_make_unique",
|
|
"values": { "c++14": 201304 },
|
|
"headers": ["memory"],
|
|
}, {
|
|
"name": "__cpp_lib_map_try_emplace",
|
|
"values": { "c++17": 201411 },
|
|
"headers": ["map"],
|
|
}, {
|
|
"name": "__cpp_lib_math_constants",
|
|
"values": { "c++20": 201907 },
|
|
"headers": ["numbers"],
|
|
"test_suite_guard": "defined(__cpp_concepts) && __cpp_concepts >= 201907L",
|
|
"libcxx_guard": "!defined(_LIBCPP_HAS_NO_CONCEPTS)",
|
|
}, {
|
|
"name": "__cpp_lib_math_special_functions",
|
|
"values": { "c++17": 201603 },
|
|
"headers": ["cmath"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_memory_resource",
|
|
"values": { "c++17": 201603 },
|
|
"headers": ["memory_resource"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_monadic_optional",
|
|
"values": { "c++2b": 202110 },
|
|
"headers": ["optional"],
|
|
}, {
|
|
"name": "__cpp_lib_move_only_function",
|
|
"values": { "c++2b": 202110 },
|
|
"headers": ["functional"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_node_extract",
|
|
"values": { "c++17": 201606 },
|
|
"headers": ["map", "set", "unordered_map", "unordered_set"],
|
|
}, {
|
|
"name": "__cpp_lib_nonmember_container_access",
|
|
"values": { "c++17": 201411 },
|
|
"headers": ["array", "deque", "forward_list", "iterator", "list", "map", "regex", "set", "string", "unordered_map", "unordered_set", "vector"],
|
|
}, {
|
|
"name": "__cpp_lib_not_fn",
|
|
"values": { "c++17": 201603 },
|
|
"headers": ["functional"],
|
|
}, {
|
|
"name": "__cpp_lib_null_iterators",
|
|
"values": { "c++14": 201304 },
|
|
"headers": ["iterator"],
|
|
}, {
|
|
"name": "__cpp_lib_optional",
|
|
"values": { "c++17": 201606 },
|
|
"headers": ["optional"],
|
|
}, {
|
|
"name": "__cpp_lib_out_ptr",
|
|
"values": { "c++2b": 202106 },
|
|
"headers": ["memory"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_parallel_algorithm",
|
|
"values": { "c++17": 201603 },
|
|
"headers": ["algorithm", "numeric"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_polymorphic_allocator",
|
|
"values": { "c++20": 201902 },
|
|
"headers": ["memory_resource"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_quoted_string_io",
|
|
"values": { "c++14": 201304 },
|
|
"headers": ["iomanip"],
|
|
}, {
|
|
"name": "__cpp_lib_ranges",
|
|
"values": { "c++20": 201811 },
|
|
"headers": ["algorithm", "functional", "iterator", "memory", "ranges"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_ranges_starts_ends_with",
|
|
"values": { "c++2b": 202106 },
|
|
"headers": ["algorithm"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_ranges_zip",
|
|
"values": { "c++2b": 202110 },
|
|
"headers": ["ranges", "tuple", "utility"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_raw_memory_algorithms",
|
|
"values": { "c++17": 201606 },
|
|
"headers": ["memory"],
|
|
}, {
|
|
"name": "__cpp_lib_remove_cvref",
|
|
"values": { "c++20": 201711 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_result_of_sfinae",
|
|
"values": { "c++14": 201210 },
|
|
"headers": ["functional", "type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_robust_nonmodifying_seq_ops",
|
|
"values": { "c++14": 201304 },
|
|
"headers": ["algorithm"],
|
|
}, {
|
|
"name": "__cpp_lib_sample",
|
|
"values": { "c++17": 201603 },
|
|
"headers": ["algorithm"],
|
|
}, {
|
|
"name": "__cpp_lib_scoped_lock",
|
|
"values": { "c++17": 201703 },
|
|
"headers": ["mutex"],
|
|
}, {
|
|
"name": "__cpp_lib_semaphore",
|
|
"values": { "c++20": 201907 },
|
|
"headers": ["semaphore"],
|
|
"test_suite_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_semaphore)",
|
|
"libcxx_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_semaphore)",
|
|
}, {
|
|
"name": "__cpp_lib_shared_mutex",
|
|
"values": { "c++17": 201505 },
|
|
"headers": ["shared_mutex"],
|
|
"test_suite_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_mutex)",
|
|
"libcxx_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_mutex)",
|
|
}, {
|
|
"name": "__cpp_lib_shared_ptr_arrays",
|
|
"values": { "c++17": 201611 },
|
|
"headers": ["memory"],
|
|
}, {
|
|
"name": "__cpp_lib_shared_ptr_weak_type",
|
|
"values": { "c++17": 201606 },
|
|
"headers": ["memory"],
|
|
}, {
|
|
"name": "__cpp_lib_shared_timed_mutex",
|
|
"values": { "c++14": 201402 },
|
|
"headers": ["shared_mutex"],
|
|
"test_suite_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_timed_mutex)",
|
|
"libcxx_guard": "!defined(_LIBCPP_HAS_NO_THREADS) && !defined(_LIBCPP_AVAILABILITY_DISABLE_FTM___cpp_lib_shared_timed_mutex)",
|
|
}, {
|
|
"name": "__cpp_lib_shift",
|
|
"values": { "c++20": 201806 },
|
|
"headers": ["algorithm"],
|
|
}, {
|
|
"name": "__cpp_lib_smart_ptr_for_overwrite",
|
|
"values": { "c++20": 202002 },
|
|
"headers": ["memory"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_source_location",
|
|
"values": { "c++20": 201907 },
|
|
"headers": ["source_location"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_span",
|
|
"values": { "c++20": 202002 },
|
|
"headers": ["span"],
|
|
}, {
|
|
"name": "__cpp_lib_spanstream",
|
|
"values": { "c++2b": 202106 },
|
|
"headers": ["spanstream"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_ssize",
|
|
"values": { "c++20": 201902 },
|
|
"headers": ["iterator"],
|
|
}, {
|
|
"name": "__cpp_lib_stacktrace",
|
|
"values": { "c++2b": 202011 },
|
|
"headers": ["stacktrace"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_starts_ends_with",
|
|
"values": { "c++20": 201711 },
|
|
"headers": ["string", "string_view"],
|
|
}, {
|
|
"name": "__cpp_lib_stdatomic_h",
|
|
"values": { "c++2b": 202011 },
|
|
"headers": ["stdatomic.h"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_string_contains",
|
|
"values": { "c++2b": 202011 },
|
|
"headers": ["string", "string_view"],
|
|
}, {
|
|
"name": "__cpp_lib_string_resize_and_overwrite",
|
|
"values": { "c++2b": 202110 },
|
|
"headers": ["string"],
|
|
}, {
|
|
"name": "__cpp_lib_string_udls",
|
|
"values": { "c++14": 201304 },
|
|
"headers": ["string"],
|
|
}, {
|
|
"name": "__cpp_lib_string_view",
|
|
"values": { "c++17": 201606, "c++20": 201803 },
|
|
"headers": ["string", "string_view"],
|
|
}, {
|
|
"name": "__cpp_lib_syncbuf",
|
|
"values": { "c++20": 201803 },
|
|
"headers": ["syncstream"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_three_way_comparison",
|
|
"values": { "c++20": 201907 },
|
|
"headers": ["compare"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_to_address",
|
|
"values": { "c++20": 201711 },
|
|
"headers": ["memory"],
|
|
}, {
|
|
"name": "__cpp_lib_to_array",
|
|
"values": { "c++20": 201907 },
|
|
"headers": ["array"],
|
|
}, {
|
|
"name": "__cpp_lib_to_chars",
|
|
"values": { "c++17": 201611 },
|
|
"headers": ["charconv"],
|
|
"unimplemented": True,
|
|
}, {
|
|
"name": "__cpp_lib_to_underlying",
|
|
"values": { "c++2b": 202102 },
|
|
"headers": ["utility"],
|
|
}, {
|
|
"name": "__cpp_lib_transformation_trait_aliases",
|
|
"values": { "c++14": 201304 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_transparent_operators",
|
|
"values": { "c++14": 201210, "c++17": 201510 },
|
|
"headers": ["functional", "memory"],
|
|
}, {
|
|
"name": "__cpp_lib_tuple_element_t",
|
|
"values": { "c++14": 201402 },
|
|
"headers": ["tuple"],
|
|
}, {
|
|
"name": "__cpp_lib_tuples_by_type",
|
|
"values": { "c++14": 201304 },
|
|
"headers": ["tuple", "utility"],
|
|
}, {
|
|
"name": "__cpp_lib_type_identity",
|
|
"values": { "c++20": 201806 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_type_trait_variable_templates",
|
|
"values": { "c++17": 201510 },
|
|
"headers": ["type_traits"],
|
|
}, {
|
|
"name": "__cpp_lib_uncaught_exceptions",
|
|
"values": { "c++17": 201411 },
|
|
"headers": ["exception"],
|
|
}, {
|
|
"name": "__cpp_lib_unordered_map_try_emplace",
|
|
"values": { "c++17": 201411 },
|
|
"headers": ["unordered_map"],
|
|
}, {
|
|
"name": "__cpp_lib_unwrap_ref",
|
|
"values": { "c++20": 201811 },
|
|
"headers": ["functional"],
|
|
}, {
|
|
"name": "__cpp_lib_variant",
|
|
"values": { "c++17": 202102 },
|
|
"headers": ["variant"],
|
|
}, {
|
|
"name": "__cpp_lib_void_t",
|
|
"values": { "c++17": 201411 },
|
|
"headers": ["type_traits"],
|
|
}
|
|
]]
|
|
|
|
assert feature_test_macros == sorted(feature_test_macros, key=lambda tc: tc["name"])
|
|
assert all(tc["headers"] == sorted(tc["headers"]) for tc in feature_test_macros)
|
|
assert all(("libcxx_guard" in tc) == ("test_suite_guard" in tc) for tc in feature_test_macros)
|
|
assert all(all(key in ["name", "values", "headers", "libcxx_guard", "test_suite_guard", "unimplemented"] for key in tc.keys()) for tc in feature_test_macros)
|
|
|
|
# Map from each header to the Lit annotations that should be used for
|
|
# tests that include that header.
|
|
#
|
|
# For example, when threads are not supported, any test that includes
|
|
# <thread> should be marked as UNSUPPORTED, because including <thread>
|
|
# is a hard error in that case.
|
|
lit_markup = {
|
|
"barrier": ["UNSUPPORTED: libcpp-has-no-threads"],
|
|
"filesystem": ["UNSUPPORTED: libcpp-has-no-filesystem-library"],
|
|
"format": ["UNSUPPORTED: libcpp-has-no-incomplete-format"],
|
|
"iomanip": ["UNSUPPORTED: libcpp-has-no-localization"],
|
|
"ios": ["UNSUPPORTED: libcpp-has-no-localization"],
|
|
"iostream": ["UNSUPPORTED: libcpp-has-no-localization"],
|
|
"istream": ["UNSUPPORTED: libcpp-has-no-localization"],
|
|
"latch": ["UNSUPPORTED: libcpp-has-no-threads"],
|
|
"locale": ["UNSUPPORTED: libcpp-has-no-localization"],
|
|
"mutex": ["UNSUPPORTED: libcpp-has-no-threads"],
|
|
"ostream": ["UNSUPPORTED: libcpp-has-no-localization"],
|
|
"ranges": ["UNSUPPORTED: libcpp-has-no-incomplete-ranges"],
|
|
"regex": ["UNSUPPORTED: libcpp-has-no-localization"],
|
|
"semaphore": ["UNSUPPORTED: libcpp-has-no-threads"],
|
|
"shared_mutex": ["UNSUPPORTED: libcpp-has-no-threads"],
|
|
"thread": ["UNSUPPORTED: libcpp-has-no-threads"]
|
|
}
|
|
|
|
def get_std_dialects():
|
|
std_dialects = ['c++14', 'c++17', 'c++20', 'c++2b']
|
|
return list(std_dialects)
|
|
|
|
def get_first_std(d):
|
|
for s in get_std_dialects():
|
|
if s in d.keys():
|
|
return s
|
|
return None
|
|
|
|
def get_last_std(d):
|
|
rev_dialects = get_std_dialects()
|
|
rev_dialects.reverse()
|
|
for s in rev_dialects:
|
|
if s in d.keys():
|
|
return s
|
|
return None
|
|
|
|
def get_std_before(d, std):
|
|
std_dialects = get_std_dialects()
|
|
candidates = std_dialects[0:std_dialects.index(std)]
|
|
candidates.reverse()
|
|
for cand in candidates:
|
|
if cand in d.keys():
|
|
return cand
|
|
return None
|
|
|
|
def get_value_before(d, std):
|
|
new_std = get_std_before(d, std)
|
|
if new_std is None:
|
|
return None
|
|
return d[new_std]
|
|
|
|
def get_for_std(d, std):
|
|
# This catches the C++11 case for which there should be no defined feature
|
|
# test macros.
|
|
std_dialects = get_std_dialects()
|
|
if std not in std_dialects:
|
|
return None
|
|
# Find the value for the newest C++ dialect between C++14 and std
|
|
std_list = list(std_dialects[0:std_dialects.index(std)+1])
|
|
std_list.reverse()
|
|
for s in std_list:
|
|
if s in d.keys():
|
|
return d[s]
|
|
return None
|
|
|
|
def get_std_number(std):
|
|
return std.replace('c++', '')
|
|
|
|
"""
|
|
Functions to produce the <version> header
|
|
"""
|
|
|
|
def produce_macros_definition_for_std(std):
|
|
result = ""
|
|
indent = 55
|
|
for tc in feature_test_macros:
|
|
if std not in tc["values"]:
|
|
continue
|
|
inner_indent = 1
|
|
if 'test_suite_guard' in tc.keys():
|
|
result += "# if %s\n" % tc["libcxx_guard"]
|
|
inner_indent += 2
|
|
if get_value_before(tc["values"], std) is not None:
|
|
assert 'test_suite_guard' not in tc.keys()
|
|
result += "# undef %s\n" % tc["name"]
|
|
line = "#%sdefine %s" % ((" " * inner_indent), tc["name"])
|
|
line += " " * (indent - len(line))
|
|
line += " %sL" % tc["values"][std]
|
|
if 'unimplemented' in tc.keys():
|
|
line = "// " + line
|
|
result += line
|
|
result += "\n"
|
|
if 'test_suite_guard' in tc.keys():
|
|
result += "# endif\n"
|
|
return result.strip()
|
|
|
|
def produce_macros_definitions():
|
|
macro_definition_template = """#if _LIBCPP_STD_VER > {previous_std_number}
|
|
{macro_definition}
|
|
#endif"""
|
|
|
|
macros_definitions = []
|
|
previous_std_number = '11'
|
|
for std in get_std_dialects():
|
|
macros_definitions.append(
|
|
macro_definition_template.format(previous_std_number=previous_std_number,
|
|
macro_definition=produce_macros_definition_for_std(std)))
|
|
previous_std_number = get_std_number(std)
|
|
|
|
return '\n\n'.join(macros_definitions)
|
|
|
|
def chunks(l, n):
|
|
"""Yield successive n-sized chunks from l."""
|
|
for i in range(0, len(l), n):
|
|
yield l[i:i + n]
|
|
|
|
def produce_version_synopsis():
|
|
indent = 56
|
|
header_indent = 56 + len("20XXYYL ")
|
|
result = ""
|
|
def indent_to(s, val):
|
|
if len(s) >= val:
|
|
return s
|
|
s += " " * (val - len(s))
|
|
return s
|
|
line = indent_to("Macro name", indent) + "Value"
|
|
line = indent_to(line, header_indent) + "Headers"
|
|
result += line + "\n"
|
|
for tc in feature_test_macros:
|
|
prev_defined_std = get_last_std(tc["values"])
|
|
line = "{name: <{indent}}{value}L ".format(name=tc['name'], indent=indent,
|
|
value=tc["values"][prev_defined_std])
|
|
headers = list(tc["headers"])
|
|
headers.remove("version")
|
|
for chunk in chunks(headers, 3):
|
|
line = indent_to(line, header_indent)
|
|
chunk = ['<%s>' % header for header in chunk]
|
|
line += ' '.join(chunk)
|
|
result += line
|
|
result += "\n"
|
|
line = ""
|
|
while True:
|
|
prev_defined_std = get_std_before(tc["values"], prev_defined_std)
|
|
if prev_defined_std is None:
|
|
break
|
|
result += "%s%sL // %s\n" % (indent_to("", indent), tc["values"][prev_defined_std],
|
|
prev_defined_std.replace("c++", "C++"))
|
|
return result
|
|
|
|
|
|
def produce_version_header():
|
|
template="""// -*- C++ -*-
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP_VERSIONH
|
|
#define _LIBCPP_VERSIONH
|
|
|
|
/*
|
|
version synopsis
|
|
|
|
{synopsis}
|
|
|
|
*/
|
|
|
|
#include <__config>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
// clang-format off
|
|
|
|
{cxx_macros}
|
|
|
|
// clang-format on
|
|
|
|
#endif // _LIBCPP_VERSIONH
|
|
"""
|
|
|
|
version_str = template.format(
|
|
synopsis=produce_version_synopsis().strip(),
|
|
cxx_macros=produce_macros_definitions())
|
|
version_header_path = os.path.join(include_path, 'version')
|
|
with open(version_header_path, 'w', newline='\n') as f:
|
|
f.write(version_str)
|
|
|
|
|
|
"""
|
|
Functions to produce test files
|
|
"""
|
|
|
|
test_types = {
|
|
"undefined": """
|
|
# ifdef {name}
|
|
# error "{name} should not be defined before {std_first}"
|
|
# endif
|
|
""",
|
|
|
|
"test_suite_guard": """
|
|
# if {test_suite_guard}
|
|
# ifndef {name}
|
|
# error "{name} should be defined in {std}"
|
|
# endif
|
|
# if {name} != {value}
|
|
# error "{name} should have the value {value} in {std}"
|
|
# endif
|
|
# else
|
|
# ifdef {name}
|
|
# error "{name} should not be defined when {test_suite_guard} is not defined!"
|
|
# endif
|
|
# endif
|
|
""",
|
|
|
|
"unimplemented": """
|
|
# if !defined(_LIBCPP_VERSION)
|
|
# ifndef {name}
|
|
# error "{name} should be defined in {std}"
|
|
# endif
|
|
# if {name} != {value}
|
|
# error "{name} should have the value {value} in {std}"
|
|
# endif
|
|
# else // _LIBCPP_VERSION
|
|
# ifdef {name}
|
|
# error "{name} should not be defined because it is unimplemented in libc++!"
|
|
# endif
|
|
# endif
|
|
""",
|
|
|
|
"defined": """
|
|
# ifndef {name}
|
|
# error "{name} should be defined in {std}"
|
|
# endif
|
|
# if {name} != {value}
|
|
# error "{name} should have the value {value} in {std}"
|
|
# endif
|
|
"""
|
|
}
|
|
|
|
def generate_std_test(test_list, std):
|
|
result = ""
|
|
for tc in test_list:
|
|
val = get_for_std(tc["values"], std)
|
|
if val is not None:
|
|
val = "%sL" % val
|
|
if val is None:
|
|
result += test_types["undefined"].format(name=tc["name"], std_first=get_first_std(tc["values"]))
|
|
elif 'unimplemented' in tc.keys():
|
|
result += test_types["unimplemented"].format(name=tc["name"], value=val, std=std)
|
|
elif "test_suite_guard" in tc.keys():
|
|
result += test_types["test_suite_guard"].format(name=tc["name"], value=val, std=std, test_suite_guard=tc["test_suite_guard"])
|
|
else:
|
|
result += test_types["defined"].format(name=tc["name"], value=val, std=std)
|
|
return result.strip()
|
|
|
|
def generate_std_tests(test_list):
|
|
std_tests_template = """#if TEST_STD_VER < {first_std_number}
|
|
|
|
{pre_std_test}
|
|
|
|
{other_std_tests}
|
|
|
|
#elif TEST_STD_VER > {penultimate_std_number}
|
|
|
|
{last_std_test}
|
|
|
|
#endif // TEST_STD_VER > {penultimate_std_number}"""
|
|
|
|
std_dialects = get_std_dialects()
|
|
assert not get_std_number(std_dialects[-1]).isnumeric()
|
|
|
|
other_std_tests = []
|
|
for std in std_dialects[:-1]:
|
|
other_std_tests.append('#elif TEST_STD_VER == ' + get_std_number(std))
|
|
other_std_tests.append(generate_std_test(test_list, std))
|
|
|
|
std_tests = std_tests_template.format(first_std_number=get_std_number(std_dialects[0]),
|
|
pre_std_test=generate_std_test(test_list, 'c++11'),
|
|
other_std_tests='\n\n'.join(other_std_tests),
|
|
penultimate_std_number=get_std_number(std_dialects[-2]),
|
|
last_std_test=generate_std_test(test_list, std_dialects[-1]))
|
|
|
|
return std_tests
|
|
|
|
def generate_synopsis(test_list):
|
|
max_name_len = max([len(tc["name"]) for tc in test_list])
|
|
indent = max_name_len + 8
|
|
def mk_line(prefix, suffix):
|
|
return "{prefix: <{max_len}}{suffix}\n".format(prefix=prefix, suffix=suffix,
|
|
max_len=indent)
|
|
result = ""
|
|
result += mk_line("/* Constant", "Value")
|
|
for tc in test_list:
|
|
prefix = " %s" % tc["name"]
|
|
for std in [s for s in get_std_dialects() if s in tc["values"].keys()]:
|
|
result += mk_line(prefix, "%sL [%s]" % (tc["values"][std], std.replace("c++", "C++")))
|
|
prefix = ""
|
|
result += "*/"
|
|
return result
|
|
|
|
def produce_tests():
|
|
headers = set([h for tc in feature_test_macros for h in tc["headers"]])
|
|
for h in headers:
|
|
test_list = [tc for tc in feature_test_macros if h in tc["headers"]]
|
|
if not has_header(h):
|
|
for tc in test_list:
|
|
assert 'unimplemented' in tc.keys()
|
|
continue
|
|
markup = '\n'.join('// ' + tag for tag in lit_markup.get(h, []))
|
|
test_body = \
|
|
"""//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// WARNING: This test was generated by {script_name}
|
|
// and should not be edited manually.
|
|
//
|
|
// clang-format off
|
|
{markup}
|
|
// <{header}>
|
|
|
|
// Test the feature test macros defined by <{header}>
|
|
|
|
{synopsis}
|
|
|
|
#include <{header}>
|
|
#include "test_macros.h"
|
|
|
|
{cxx_tests}
|
|
|
|
int main(int, char**) {{ return 0; }}
|
|
""".format(script_name=script_name,
|
|
header=h,
|
|
markup=('\n{}\n'.format(markup) if markup else ''),
|
|
synopsis=generate_synopsis(test_list),
|
|
cxx_tests=generate_std_tests(test_list))
|
|
test_name = "{header}.version.pass.cpp".format(header=h)
|
|
out_path = os.path.join(macro_test_path, test_name)
|
|
with open(out_path, 'w', newline='\n') as f:
|
|
f.write(test_body)
|
|
|
|
"""
|
|
Produce documentation for the feature test macros
|
|
"""
|
|
|
|
def make_widths(grid):
|
|
widths = []
|
|
for i in range(0, len(grid[0])):
|
|
cell_width = 2 + max(reduce(lambda x,y: x+y, [[len(row[i])] for row in grid], []))
|
|
widths += [cell_width]
|
|
return widths
|
|
|
|
def create_table(grid, indent):
|
|
indent_str = ' '*indent
|
|
col_widths = make_widths(grid)
|
|
result = [indent_str + add_divider(col_widths, 2)]
|
|
header_flag = 2
|
|
for row_i in range(0, len(grid)):
|
|
row = grid[row_i]
|
|
line = indent_str + ' '.join([pad_cell(row[i], col_widths[i]) for i in range(0, len(row))])
|
|
result.append(line.rstrip())
|
|
is_cxx_header = row[0].startswith('**')
|
|
if row_i == len(grid) - 1:
|
|
header_flag = 2
|
|
separator = indent_str + add_divider(col_widths, 1 if is_cxx_header else header_flag)
|
|
result.append(separator.rstrip())
|
|
header_flag = 0
|
|
return '\n'.join(result)
|
|
|
|
def add_divider(widths, header_flag):
|
|
if header_flag == 2:
|
|
return ' '.join(['='*w for w in widths])
|
|
if header_flag == 1:
|
|
return '-'.join(['-'*w for w in widths])
|
|
else:
|
|
return ' '.join(['-'*w for w in widths])
|
|
|
|
def pad_cell(s, length, left_align=True):
|
|
padding = ((length - len(s)) * ' ')
|
|
return s + padding
|
|
|
|
|
|
def get_status_table():
|
|
table = [["Macro Name", "Value"]]
|
|
for std in get_std_dialects():
|
|
table += [["**" + std.replace("c++", "C++ ") + "**", ""]]
|
|
for tc in feature_test_macros:
|
|
if std not in tc["values"].keys():
|
|
continue
|
|
value = "``%sL``" % tc["values"][std]
|
|
if 'unimplemented' in tc.keys():
|
|
value = '*unimplemented*'
|
|
table += [["``%s``" % tc["name"], value]]
|
|
return table
|
|
|
|
def produce_docs():
|
|
doc_str = """.. _FeatureTestMacroTable:
|
|
|
|
==========================
|
|
Feature Test Macro Support
|
|
==========================
|
|
|
|
.. contents::
|
|
:local:
|
|
|
|
Overview
|
|
========
|
|
|
|
This file documents the feature test macros currently supported by libc++.
|
|
|
|
.. _feature-status:
|
|
|
|
Status
|
|
======
|
|
|
|
.. table:: Current Status
|
|
:name: feature-status-table
|
|
:widths: auto
|
|
|
|
{status_tables}
|
|
|
|
""".format(status_tables=create_table(get_status_table(), 4))
|
|
|
|
table_doc_path = os.path.join(docs_path, 'FeatureTestMacroTable.rst')
|
|
with open(table_doc_path, 'w', newline='\n') as f:
|
|
f.write(doc_str)
|
|
|
|
def main():
|
|
produce_version_header()
|
|
produce_tests()
|
|
produce_docs()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|