[libc++][NFC] Increase consistency for namespace closing comments

libcxx/include/__mdspan/extents.h

@@ -449,7 +449,7 @@ struct __make_dextents< _IndexType, 0, extents<_IndexType, _ExtentsPack...>> {
   using type = extents<_IndexType, _ExtentsPack...>;
 };
 
-} // end namespace __mdspan_detail
+} // namespace __mdspan_detail
 
 // [mdspan.extents.dextents], alias template
 template <class _IndexType, size_t _Rank>

libcxx/src/filesystem/error.h

@@ -225,7 +225,7 @@ private:
   ErrorHandler& operator=(ErrorHandler const&) = delete;
 };
 
-} // end namespace detail
+} // namespace detail
 
 _LIBCPP_END_NAMESPACE_FILESYSTEM
 

libcxx/src/filesystem/file_descriptor.h

@@ -284,7 +284,7 @@ inline file_status FileDescriptor::refresh_status(error_code& ec) {
   return m_status;
 }
 
-} // end namespace detail
+} // namespace detail
 
 _LIBCPP_END_NAMESPACE_FILESYSTEM
 

libcxx/src/filesystem/format_string.h

@@ -70,7 +70,7 @@ inline _LIBCPP_ATTRIBUTE_FORMAT(__printf__, 1, 2) string format_string(const cha
   return ret;
 }
 
-} // end namespace detail
+} // namespace detail
 
 _LIBCPP_END_NAMESPACE_FILESYSTEM
 

libcxx/src/filesystem/operations.cpp

@@ -254,7 +254,7 @@ bool copy_file_impl(FileDescriptor& read_fd, FileDescriptor& write_fd, error_cod
 #endif // copy_file_impl implementation
 
 } // end anonymous namespace
-} // end namespace detail
+} // namespace detail
 
 bool __copy_file(const path& from, const path& to, copy_options options, error_code* ec) {
   using detail::FileDescriptor;
@@ -732,7 +732,7 @@ uintmax_t remove_all_impl(path const& p, error_code& ec) {
   return count;
 }
 
-} // end namespace
+} // namespace
 
 uintmax_t __remove_all(const path& p, error_code* ec) {
   ErrorHandler<uintmax_t> err("remove_all", ec, &p);
@@ -827,7 +827,7 @@ uintmax_t remove_all_impl(int parent_directory, const path& p, error_code& ec) {
   return 0;
 }
 
-} // end namespace
+} // namespace
 
 uintmax_t __remove_all(const path& p, error_code* ec) {
   ErrorHandler<uintmax_t> err("remove_all", ec, &p);

libcxx/src/filesystem/posix_compat.h

@@ -490,7 +490,7 @@ using SSizeT  = ::ssize_t;
 
 #endif
 
-} // end namespace detail
+} // namespace detail
 
 _LIBCPP_END_NAMESPACE_FILESYSTEM
 

libcxx/src/filesystem/time_utils.h

@@ -344,7 +344,7 @@ inline file_time_type __extract_last_write_time(const path& p, const StatT& st,
 
 #endif // !_LIBCPP_HAS_NO_FILESYSTEM
 
-} // end namespace detail
+} // namespace detail
 
 _LIBCPP_END_NAMESPACE_FILESYSTEM
 

libcxx/src/include/atomic_support.h

@@ -125,7 +125,7 @@ __libcpp_atomic_compare_exchange(_ValueType* __val, _ValueType* __expected, _Val
 
 #endif // _LIBCPP_HAS_NO_THREADS
 
-} // end namespace
+} // namespace
 
 _LIBCPP_END_NAMESPACE_STD
 

libcxx/src/memory_resource.cpp

@@ -82,7 +82,7 @@ union ResourceInitHelper {
 // attribute with a value that's reserved for the implementation (we're the implementation).
 #include "memory_resource_init_helper.h"
 
-} // end namespace
+} // namespace
 
 memory_resource* new_delete_resource() noexcept { return &res_init.resources.new_delete_res; }
 

libcxx/src/system_error.cpp

@@ -110,7 +110,7 @@ string make_error_str(const error_code& ec) {
   }
   return string();
 }
-} // end namespace
+} // namespace
 
 string __do_message::message(int ev) const {
 #if defined(_LIBCPP_HAS_NO_THREADS)

libcxx/test/benchmarks/ContainerBenchmarks.h

@@ -223,6 +223,6 @@ static void BM_Compare_different_containers(benchmark::State& st, Container, Gen
   }
 }
 
-} // end namespace ContainerBenchmarks
+} // namespace ContainerBenchmarks
 
 #endif // BENCHMARK_CONTAINER_BENCHMARKS_H

libcxx/test/benchmarks/VariantBenchmarks.h

@@ -50,6 +50,6 @@ static void BM_Visit(benchmark::State& state) {
   }
 }
 
-} // end namespace VariantBenchmarks
+} // namespace VariantBenchmarks
 
 #endif // BENCHMARK_VARIANT_BENCHMARKS_H

libcxx/test/std/input.output/filesystems/fs.op.funcs/fs.op.last_write_time/last_write_time.pass.cpp

@@ -300,7 +300,7 @@ static const bool SupportsMinRoundTrip = [] {
   return min_val == file_time_type::min();
 }();
 
-} // end namespace
+} // namespace
 
 static bool CompareTime(TimeSpec t1, TimeSpec t2) {
   if (SupportsNanosecondRoundTrip)

libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_swappable.pass.cpp

@@ -61,7 +61,7 @@ struct AmbiguousSwap {};
 template <class T>
 void swap(T&, T&) {}
 
-} // end namespace MyNS2
+} // namespace MyNS2
 
 int main(int, char**)
 {

libcxx/test/std/utilities/tuple/tuple.tuple/tuple.apply/apply.pass.cpp

@@ -247,7 +247,7 @@ namespace ReturnTypeTest {
         using InvokeResult = decltype(std::apply(fn, t));
         static_assert(std::is_same<InvokeResult, Expect>::value, "");
     }
-} // end namespace ReturnTypeTest
+} // namespace ReturnTypeTest
 
 void test_return_type()
 {

libcxx/test/support/archetypes.h

@@ -328,7 +328,7 @@ constexpr bool operator!=(Tp const& L, Tp const& R) noexcept {
   return L.value != R.value;
 }
 
-} // end namespace ConstexprTestTypes
+} // namespace ConstexprTestTypes
 
 
 //============================================================================//
@@ -351,7 +351,7 @@ constexpr bool operator!=(Tp const& L, Tp const& R) noexcept {
   return L.value != R.value;
 }
 
-} // end namespace ExplicitConstexprTestTypes
+} // namespace ExplicitConstexprTestTypes
 
 
 //============================================================================//
@@ -373,7 +373,7 @@ constexpr bool operator!=(Tp const& L, Tp const& R) noexcept {
   return L.value != R.value;
 }
 
-} // end namespace TrivialTestTypes
+} // namespace TrivialTestTypes
 
 //============================================================================//
 //
@@ -395,7 +395,7 @@ constexpr bool operator!=(Tp const& L, Tp const& R) noexcept {
   return L.value != R.value;
 }
 
-} // end namespace ExplicitTrivialTestTypes
+} // namespace ExplicitTrivialTestTypes
 
 #endif // TEST_STD_VER >= 11
 

libcxx/test/support/container_test_types.h

@@ -349,7 +349,7 @@ typedef std::allocator_traits<A2> A2T;
 
 static_assert(std::is_same<A1T::rebind_traits<float>, A2T>::value, "");
 static_assert(std::is_same<A2T::rebind_traits<int>, A1T>::value, "");
-} // end namespace test_detail
+} // namespace test_detail
 
 //===----------------------------------------------------------------------===//
 //  'CopyInsertable', 'MoveInsertable' and 'EmplaceConstructible' test types
@@ -491,6 +491,6 @@ template <class Value = CopyInsertable<1> >
 using multiset =
     std::multiset<Value, std::less<Value>, ContainerTestAllocator<Value, Value> >;
 
-} // end namespace TCT
+} // namespace TCT
 
 #endif // SUPPORT_CONTAINER_TEST_TYPES_H

libcxx/test/support/filesystem_test_helper.h

@@ -146,7 +146,7 @@ namespace utils {
         struct ::stat tmp;
         return ::stat(path.c_str(), &tmp) == 0;
     }
-} // end namespace utils
+} // namespace utils
 
 struct scoped_test_env
 {

libcxx/test/support/make_test_thread.h

@@ -46,6 +46,6 @@ TEST_AVAILABILITY_SYNC std::jthread make_test_jthread(F&& f, Args&&... args) {
 }
 #endif
 
-} // end namespace support
+} // namespace support
 
 #endif // TEST_SUPPORT_MAKE_TEST_THREAD_H

libcxx/test/support/parse_integer.h

@@ -62,7 +62,7 @@ struct parse_integer_impl<unsigned long long> {
         return std::stoull(str);
     }
 };
-} // end namespace detail
+} // namespace detail
 
 template <class T, class CharT>
 T parse_integer(std::basic_string<CharT> const& str) {

libcxx/test/support/uses_alloc_types.h

@@ -120,7 +120,7 @@ using IdentityT = typename Identity<T>::type;
 template <bool Value>
 using EnableIfB = typename std::enable_if<Value, bool>::type;
 
-} // end namespace detail
+} // namespace detail
 
 using detail::EnableIfB;
 

libcxxabi/src/cxa_guard_impl.h

@@ -676,8 +676,8 @@ static_assert(CurrentImplementation != Implementation::Futex || PlatformSupports
 
 using SelectedImplementation = SelectImplementation<CurrentImplementation>::type;
 
-} // end namespace
-} // end namespace __cxxabiv1
+} // namespace
+} // namespace __cxxabiv1
 
 #if defined(__clang__)
 #  pragma clang diagnostic pop

libcxxabi/src/cxa_personality.cpp

@@ -167,7 +167,7 @@ uintptr_t readPointerHelper(const uint8_t*& p) {
     return static_cast<uintptr_t>(value);
 }
 
-} // end namespace
+} // namespace
 
 extern "C"
 {