[libc++] Format the code base (#74334)

This patch runs clang-format on all of libcxx/include and libcxx/src, in
accordance with the RFC discussed at [1]. Follow-up patches will format
the benchmarks, the test suite and remaining parts of the code. I'm
splitting this one into its own patch so the diff is a bit easier to
review.

This patch was generated with:

   find libcxx/include libcxx/src -type f \
      | grep -v 'module.modulemap.in' \
      | grep -v 'CMakeLists.txt' \
      | grep -v 'README.txt' \
      | grep -v 'libcxx.imp' \
      | grep -v '__config_site.in' \
      | xargs clang-format -i

A Git merge driver is available in libcxx/utils/clang-format-merge-driver.sh
to help resolve merge and rebase issues across these formatting changes.

[1]: https://discourse.llvm.org/t/rfc-clang-formatting-all-of-libc-once-and-for-all

1 files changed, 16 insertions, 24 deletions

diff --git a/libcxx/include/__algorithm/reverse.h b/libcxx/include/__algorithm/reverse.h
index 8663452..6bd0aa3 100644
--- a/libcxx/include/__algorithm/reverse.h
+++ b/libcxx/include/__algorithm/reverse.h
@@ -22,41 +22,33 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _AlgPolicy, class _BidirectionalIterator>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-void
-__reverse_impl(_BidirectionalIterator __first, _BidirectionalIterator __last, bidirectional_iterator_tag)
-{
-    while (__first != __last)
-    {
-        if (__first == --__last)
-            break;
-        _IterOps<_AlgPolicy>::iter_swap(__first, __last);
-        ++__first;
-    }
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void
+__reverse_impl(_BidirectionalIterator __first, _BidirectionalIterator __last, bidirectional_iterator_tag) {
+  while (__first != __last) {
+    if (__first == --__last)
+      break;
+    _IterOps<_AlgPolicy>::iter_swap(__first, __last);
+    ++__first;
+  }
 }
 
 template <class _AlgPolicy, class _RandomAccessIterator>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-void
-__reverse_impl(_RandomAccessIterator __first, _RandomAccessIterator __last, random_access_iterator_tag)
-{
-    if (__first != __last)
-        for (; __first < --__last; ++__first)
-            _IterOps<_AlgPolicy>::iter_swap(__first, __last);
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void
+__reverse_impl(_RandomAccessIterator __first, _RandomAccessIterator __last, random_access_iterator_tag) {
+  if (__first != __last)
+    for (; __first < --__last; ++__first)
+      _IterOps<_AlgPolicy>::iter_swap(__first, __last);
 }
 
 template <class _AlgPolicy, class _BidirectionalIterator, class _Sentinel>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-void __reverse(_BidirectionalIterator __first, _Sentinel __last) {
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void __reverse(_BidirectionalIterator __first, _Sentinel __last) {
   using _IterCategory = typename _IterOps<_AlgPolicy>::template __iterator_category<_BidirectionalIterator>;
   std::__reverse_impl<_AlgPolicy>(std::move(__first), std::move(__last), _IterCategory());
 }
 
 template <class _BidirectionalIterator>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-void
-reverse(_BidirectionalIterator __first, _BidirectionalIterator __last)
-{
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void
+reverse(_BidirectionalIterator __first, _BidirectionalIterator __last) {
   std::__reverse<_ClassicAlgPolicy>(std::move(__first), std::move(__last));
 }