LLVM / project / 77b9abf / [libc++] Complete overhaul of constexpr support in std::array

LLVM/project 77b9abf — libcxx/docs FeatureTestMacroTable.rst, libcxx/include array version

May 28, 2020 by Louis Dionne on ⎇

release/11.x

[libc++] Complete overhaul of constexpr support in std::array

This commit adds missing support for constexpr in std::array under all
standard modes up to and including C++20. It also transforms the <array>
tests to check for constexpr-friendliness under the right standard modes.

Fixes https://llvm.org/PR40124
Fixes rdar://57522096
Supersedes https://reviews.llvm.org/D60666

Differential Revision: https://reviews.llvm.org/D80452

Delta		File
+144	-101	libcxx/test/std/containers/sequences/array/iterators.pass.cpp
+87	-65	libcxx/include/array
+59	-71	libcxx/test/std/containers/sequences/array/at.pass.cpp
+69	-60	libcxx/test/std/containers/sequences/array/array.cons/implicit_copy.pass.cpp
+32	-82	libcxx/test/std/containers/sequences/array/front_back.pass.cpp
+109	-0	libcxx/test/std/containers/sequences/array/at_const.pass.cpp
+34	-75	libcxx/test/std/containers/sequences/array/indexing.pass.cpp
+48	-32	libcxx/test/std/containers/sequences/array/array.tuple/get.pass.cpp
+73	-0	libcxx/test/std/containers/sequences/array/indexing_const.pass.cpp
+73	-0	libcxx/test/std/containers/sequences/array/front_back_const.pass.cpp
+43	-27	libcxx/test/std/containers/sequences/array/array.data/data.pass.cpp
+38	-31	libcxx/test/std/containers/sequences/array/array.cons/deduct.pass.cpp
+32	-37	libcxx/test/std/containers/sequences/array/compare.pass.cpp
+34	-29	libcxx/test/std/containers/sequences/array/array.data/data_const.pass.cpp
+35	-24	libcxx/test/std/containers/sequences/array/array.cons/default.pass.cpp
+0	-53	libcxx/test/std/containers/sequences/array/begin.pass.cpp
+50	-0	libcxx/test/std/containers/sequences/array/aggregate.pass.cpp
+32	-15	libcxx/test/std/containers/sequences/array/empty.pass.cpp
+32	-15	libcxx/test/std/containers/sequences/array/max_size.pass.cpp
+26	-16	libcxx/test/std/containers/sequences/array/array.tuple/get_const.pass.cpp
+24	-11	libcxx/test/std/containers/sequences/array/contiguous.pass.cpp
+15	-15	libcxx/test/std/containers/sequences/array/array.tuple/get_const_rv.pass.cpp
+15	-6	libcxx/test/std/containers/sequences/array/array.special/swap.pass.cpp
+15	-6	libcxx/test/std/containers/sequences/array/array.cons/initializer_list.pass.cpp
+12	-4	libcxx/test/std/containers/sequences/array/array.swap/swap.pass.cpp
+8	-8	libcxx/test/std/containers/sequences/array/array.creation/to_array.pass.cpp
+11	-2	libcxx/test/std/containers/sequences/array/array.fill/fill.pass.cpp
+0	-8	libcxx/test/std/containers/sequences/array/size_and_alignment.pass.cpp
+6	-0	libcxx/test/support/test_macros.h
+3	-2	libcxx/test/std/language.support/support.limits/support.limits.general/version.version.pass.cpp
+4	-1	libcxx/include/version
+3	-2	libcxx/test/std/language.support/support.limits/support.limits.general/array.version.pass.cpp
+3	-2	libcxx/test/std/language.support/support.limits/support.limits.general/iterator.version.pass.cpp
+2	-0	libcxx/docs/FeatureTestMacroTable.rst
+1	-1	libcxx/test/std/containers/sequences/array/array.tuple/get_rv.pass.cpp
+1	-1	libcxx/test/std/containers/sequences/array/array.size/size.pass.cpp
+1	-0	libcxx/utils/generate_feature_test_macro_components.py
+0	-1	libcxx/test/std/containers/sequences/array/array.tuple/tuple_element.fail.cpp
+1,174	-803	38 files

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