[BUG] Methods on empty std::array not declared as constexpr

[levinli303]

Description

The specialization of array<_Tp, 0> is missing constexpr on its methods.

In the <array> header array has

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
    value_type* data() _NOEXCEPT {return __elems_;}

it has _LIBCPP_CONSTEXPR_AFTER_CXX14

But in specialization array<_Tp, 0>

    _LIBCPP_INLINE_VISIBILITY
    value_type* data() _NOEXCEPT {return reinterpret_cast<value_type*>(__elems_);}

it does not have it.

Upstream libc++ https://reviews.llvm.org/D80821 fixed it as early as in clang 11. Maybe NDK has not updated the array header?

Affected versions

r25

Canary version

No response

Host OS

Linux, Mac, Windows

Host OS version

macOS 13

Affected ABIs

armeabi-v7a, arm64-v8a, x86, x86_64

Build system

CMake

Other build system

No response

minSdkVersion

21

Device API level

No response

[stephenhines]

This is a duplicate of #1530 as libcxx hasn't been updated yet.

[stephenhines]

Duplicate of #1530