[libc++] Consistently replace `std::` qualification with `_VSTD::` or nothing. NFCI.
I used a lot of `git grep` to find places where `std::` was being used
outside of comments and assert-messages. There were three outcomes:
- Qualified function calls, e.g. `std::move` becomes `_VSTD::move`.
This is the most common case.
- Typenames that don't need qualification, e.g. `std::allocator` becomes `allocator`.
Leaving these as `_VSTD::allocator` would also be fine, but I decided
that removing the qualification is more consistent with existing practice.
- Names that specifically need un-versioned `std::` qualification,
or that I wasn't sure about. For example, I didn't touch any code in
<atomic>, <math.h>, <new>, or any ext/ or experimental/ headers;
and I didn't touch any instances of `std::type_info`.
In some deduction guides, we were accidentally using `class Alloc = typename std::allocator<T>`,
despite `std::allocator<T>`'s type-ness not being template-dependent.
Because `std::allocator` is a qualified name, this did parse as we intended;
but what we meant was simply `class Alloc = allocator<T>`.
Differential Revision: https://reviews.llvm.org/D92250
GitOrigin-RevId: d586f92c9456a972ee475a021525c0522b89587b
diff --git a/include/string_view b/include/string_view
index 884bcf8..7c3214f 100644
--- a/include/string_view
+++ b/include/string_view
@@ -236,7 +236,7 @@
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
basic_string_view(const _CharT* __s)
- : __data(__s), __size(std::__char_traits_length_checked<_Traits>(__s)) {}
+ : __data(__s), __size(_VSTD::__char_traits_length_checked<_Traits>(__s)) {}
// [string.view.iterators], iterators
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY