intermediate changes

ref:4635f4dd763168c3fa295f87727595c785b4d5a4

1 files changed, 10 insertions, 10 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/span b/contrib/libs/cxxsupp/libcxx/include/span
index 5d57bd693c..d10cb73805 100644
--- a/contrib/libs/cxxsupp/libcxx/include/span
+++ b/contrib/libs/cxxsupp/libcxx/include/span
@@ -61,7 +61,7 @@ public:
     template <class It, class End>
     constexpr explicit(Extent != dynamic_extent) span(It first, End last);
     template <size_t N>
-        constexpr span(element_type (&arr)[N]) noexcept;
+        constexpr span(type_identity_t<element_type> (&arr)[N]) noexcept;
     template <size_t N>
         constexpr span(array<value_type, N>& arr) noexcept;
     template <size_t N>
@@ -89,7 +89,7 @@ public:
     // [span.obs], span observers
     constexpr size_type size() const noexcept;
     constexpr size_type size_bytes() const noexcept;
-    constexpr bool empty() const noexcept;
+    [[nodiscard]] constexpr bool empty() const noexcept;
 
     // [span.elem], span element access
     constexpr reference operator[](size_type idx) const;
@@ -264,7 +264,7 @@ public:
         { (void)__l;     _LIBCPP_ASSERT(_Extent == distance(__f, __l), "size mismatch in span's constructor (ptr, ptr)"); }
 #endif
 
-    _LIBCPP_INLINE_VISIBILITY constexpr span(element_type (&__arr)[_Extent])          noexcept : __data{__arr} {}
+    _LIBCPP_INLINE_VISIBILITY constexpr span(type_identity_t<element_type> (&__arr)[_Extent]) noexcept : __data{__arr} {}
 
     template <class _OtherElementType,
               enable_if_t<is_convertible_v<_OtherElementType(*)[], element_type (*)[]>, nullptr_t> = nullptr>
@@ -374,9 +374,9 @@ public:
         return {data() + __offset, __count};
     }
 
-    _LIBCPP_INLINE_VISIBILITY constexpr size_type size()       const noexcept { return _Extent; }
-    _LIBCPP_INLINE_VISIBILITY constexpr size_type size_bytes() const noexcept { return _Extent * sizeof(element_type); }
-    _LIBCPP_INLINE_VISIBILITY constexpr bool empty()           const noexcept { return _Extent == 0; }
+    _LIBCPP_INLINE_VISIBILITY constexpr size_type size()           const noexcept { return _Extent; }
+    _LIBCPP_INLINE_VISIBILITY constexpr size_type size_bytes()     const noexcept { return _Extent * sizeof(element_type); }
+    [[nodiscard]] _LIBCPP_INLINE_VISIBILITY constexpr bool empty() const noexcept { return _Extent == 0; }
 
     _LIBCPP_INLINE_VISIBILITY constexpr reference operator[](size_type __idx) const noexcept
     {
@@ -469,7 +469,7 @@ public:
 
     template <size_t _Sz>
     _LIBCPP_INLINE_VISIBILITY
-    constexpr span(element_type (&__arr)[_Sz])          noexcept : __data{__arr}, __size{_Sz} {}
+    constexpr span(type_identity_t<element_type> (&__arr)[_Sz]) noexcept : __data{__arr}, __size{_Sz} {}
 
     template <class _OtherElementType, size_t _Sz,
               enable_if_t<is_convertible_v<_OtherElementType(*)[], element_type (*)[]>, nullptr_t> = nullptr>
@@ -560,9 +560,9 @@ public:
         return {data() + __offset, __count};
     }
 
-    _LIBCPP_INLINE_VISIBILITY constexpr size_type size()       const noexcept { return __size; }
-    _LIBCPP_INLINE_VISIBILITY constexpr size_type size_bytes() const noexcept { return __size * sizeof(element_type); }
-    _LIBCPP_INLINE_VISIBILITY constexpr bool empty()           const noexcept { return __size == 0; }
+    _LIBCPP_INLINE_VISIBILITY constexpr size_type size()           const noexcept { return __size; }
+    _LIBCPP_INLINE_VISIBILITY constexpr size_type size_bytes()     const noexcept { return __size * sizeof(element_type); }
+    [[nodiscard]] _LIBCPP_INLINE_VISIBILITY constexpr bool empty() const noexcept { return __size == 0; }
 
     _LIBCPP_INLINE_VISIBILITY constexpr reference operator[](size_type __idx) const noexcept
     {