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| author | Louis Dionne <ldionne@apple.com> | 2019-09-26 14:51:10 +0000 |
|---|---|---|
| committer | Louis Dionne <ldionne@apple.com> | 2019-09-26 14:51:10 +0000 |
| commit | e16f2cb6789286dbfa4a184cef25b91dfb499206 (patch) | |
| tree | f67676d1b91559354b68e3e9860e0ee4aae2705f /libcxx/include/new | |
| parent | 1822087facdfaeac69dcd14690866a4d872e3fdb (diff) | |
| download | bcm5719-llvm-e16f2cb6789286dbfa4a184cef25b91dfb499206.tar.gz bcm5719-llvm-e16f2cb6789286dbfa4a184cef25b91dfb499206.zip | |
[libc++] Take 2: Implement LWG 2510
Summary:
LWG2510 makes tag types like allocator_arg_t explicitly default
constructible instead of implicitly default constructible. It also
makes the constructors for std::pair and std::tuple conditionally
explicit based on the explicit-ness of the default constructibility
for the pair/tuple's elements.
This was previously committed as r372777 and reverted in r372832 due to
the commit breaking LLVM's build in C++14 mode. This issue has now been
addressed.
Reviewers: mclow.lists
Subscribers: christof, jkorous, dexonsmith, libcxx-commits
Tags: #libc
Differential Revision: https://reviews.llvm.org/D65161
llvm-svn: 372983
Diffstat (limited to 'libcxx/include/new')
| -rw-r--r-- | libcxx/include/new | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libcxx/include/new b/libcxx/include/new index 85e4c4b3fcf..40d351e9b77 100644 --- a/libcxx/include/new +++ b/libcxx/include/new @@ -39,7 +39,7 @@ struct destroying_delete_t { // C++20 }; inline constexpr destroying_delete_t destroying_delete{}; // C++20 -struct nothrow_t {}; +struct nothrow_t { explicit nothrow_t() = default; }; extern const nothrow_t nothrow; typedef void (*new_handler)(); new_handler set_new_handler(new_handler new_p) noexcept; @@ -126,7 +126,7 @@ namespace std // purposefully not using versioning namespace { #if !defined(_LIBCPP_ABI_VCRUNTIME) -struct _LIBCPP_TYPE_VIS nothrow_t {}; +struct _LIBCPP_TYPE_VIS nothrow_t { explicit nothrow_t() = default; }; extern _LIBCPP_FUNC_VIS const nothrow_t nothrow; class _LIBCPP_EXCEPTION_ABI bad_alloc |
