[libcxx-commits] [libcxx] [libcxx][mdspan][NFC] Remove redundant syntax and keywords (PR #175024)

[via libcxx-commits]

https://github.com/eiytoq created https://github.com/llvm/llvm-project/pull/175024

None

>From 5270d60924e3ac6dc12f035b3bbaac5fa86b094e Mon Sep 17 00:00:00 2001
From: eiytoq <eiytoq at outlook.com>
Date: Fri, 9 Jan 2026 00:47:51 +0800
Subject: [PATCH] nfc

---
 libcxx/include/__mdspan/layout_stride.h |  9 ++++-----
 libcxx/include/__mdspan/mdspan.h        | 27 ++++++++++++-------------
 2 files changed, 17 insertions(+), 19 deletions(-)

diff --git a/libcxx/include/__mdspan/layout_stride.h b/libcxx/include/__mdspan/layout_stride.h
index 9d77d71bc3598..eb22475756fde 100644
--- a/libcxx/include/__mdspan/layout_stride.h
+++ b/libcxx/include/__mdspan/layout_stride.h
@@ -272,11 +272,10 @@ class layout_stride::mapping {
       return [&]<size_t... _Pos>(index_sequence<_Pos...>) {
         if ((__extents_.extent(_Pos) * ... * 1) == 0)
           return static_cast<index_type>(0);
-        else
-          return static_cast<index_type>(
-              static_cast<index_type>(1) +
-              (((__extents_.extent(_Pos) - static_cast<index_type>(1)) * __strides_[_Pos]) + ... +
-               static_cast<index_type>(0)));
+
+        return static_cast<index_type>(
+            static_cast<index_type>(1) + (((__extents_.extent(_Pos) - static_cast<index_type>(1)) * __strides_[_Pos]) +
+                                          ... + static_cast<index_type>(0)));
       }(make_index_sequence<__rank_>());
     }
   }
diff --git a/libcxx/include/__mdspan/mdspan.h b/libcxx/include/__mdspan/mdspan.h
index 9d3d35cd558a1..8467f923d64b1 100644
--- a/libcxx/include/__mdspan/mdspan.h
+++ b/libcxx/include/__mdspan/mdspan.h
@@ -96,9 +96,8 @@ class mdspan {
   }
   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr index_type extent(rank_type __r) const noexcept {
     return __map_.extents().extent(__r);
-  };
+  }
 
-public:
   //--------------------------------------------------------------------------------
   // [mdspan.mdspan.cons], mdspan constructors, assignment, and destructor
 
@@ -242,26 +241,26 @@ class mdspan {
 
   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const extents_type& extents() const noexcept {
     return __map_.extents();
-  };
-  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const data_handle_type& data_handle() const noexcept { return __ptr_; };
-  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const mapping_type& mapping() const noexcept { return __map_; };
-  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const accessor_type& accessor() const noexcept { return __acc_; };
+  }
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const data_handle_type& data_handle() const noexcept { return __ptr_; }
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const mapping_type& mapping() const noexcept { return __map_; }
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr const accessor_type& accessor() const noexcept { return __acc_; }
 
   // per LWG-4021 "mdspan::is_always_meow() should be noexcept"
   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI static constexpr bool is_always_unique() noexcept {
     return mapping_type::is_always_unique();
-  };
+  }
   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI static constexpr bool is_always_exhaustive() noexcept {
     return mapping_type::is_always_exhaustive();
-  };
+  }
   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI static constexpr bool is_always_strided() noexcept {
     return mapping_type::is_always_strided();
-  };
+  }
 
-  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool is_unique() const { return __map_.is_unique(); };
-  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool is_exhaustive() const { return __map_.is_exhaustive(); };
-  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool is_strided() const { return __map_.is_strided(); };
-  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr index_type stride(rank_type __r) const { return __map_.stride(__r); };
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool is_unique() const { return __map_.is_unique(); }
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool is_exhaustive() const { return __map_.is_exhaustive(); }
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool is_strided() const { return __map_.is_strided(); }
+  [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr index_type stride(rank_type __r) const { return __map_.stride(__r); }
 
 private:
   _LIBCPP_NO_UNIQUE_ADDRESS data_handle_type __ptr_{};
@@ -310,7 +309,7 @@ mdspan(_ElementType*, const _MappingType&)
     -> mdspan<_ElementType, typename _MappingType::extents_type, typename _MappingType::layout_type>;
 
 template <class _MappingType, class _AccessorType>
-mdspan(const typename _AccessorType::data_handle_type, const _MappingType&, const _AccessorType&)
+mdspan(typename _AccessorType::data_handle_type, const _MappingType&, const _AccessorType&)
     -> mdspan<typename _AccessorType::element_type,
               typename _MappingType::extents_type,
               typename _MappingType::layout_type,