[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, 23 insertions, 6 deletions

diff --git a/libcxx/include/__algorithm/equal.h b/libcxx/include/__algorithm/equal.h
index fb35861..f03f010a 100644
--- a/libcxx/include/__algorithm/equal.h
+++ b/libcxx/include/__algorithm/equal.h
@@ -68,8 +68,13 @@ equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first
 #if _LIBCPP_STD_VER >= 14
 template <class _BinaryPredicate, class _InputIterator1, class _InputIterator2>
 inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
-__equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2,
-        _BinaryPredicate __pred, input_iterator_tag, input_iterator_tag) {
+__equal(_InputIterator1 __first1,
+        _InputIterator1 __last1,
+        _InputIterator2 __first2,
+        _InputIterator2 __last2,
+        _BinaryPredicate __pred,
+        input_iterator_tag,
+        input_iterator_tag) {
   for (; __first1 != __last1 && __first2 != __last2; ++__first1, (void)++__first2)
     if (!__pred(*__first1, *__first2))
       return false;
@@ -104,8 +109,12 @@ __equal_impl(_Tp* __first1, _Tp* __last1, _Up* __first2, _Up*, _Pred&, _Proj1&,
 
 template <class _BinaryPredicate, class _RandomAccessIterator1, class _RandomAccessIterator2>
 inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
-__equal(_RandomAccessIterator1 __first1, _RandomAccessIterator1 __last1, _RandomAccessIterator2 __first2,
-        _RandomAccessIterator2 __last2, _BinaryPredicate __pred, random_access_iterator_tag,
+__equal(_RandomAccessIterator1 __first1,
+        _RandomAccessIterator1 __last1,
+        _RandomAccessIterator2 __first2,
+        _RandomAccessIterator2 __last2,
+        _BinaryPredicate __pred,
+        random_access_iterator_tag,
         random_access_iterator_tag) {
   if (std::distance(__first1, __last1) != std::distance(__first2, __last2))
     return false;
@@ -122,10 +131,18 @@ __equal(_RandomAccessIterator1 __first1, _RandomAccessIterator1 __last1, _Random
 
 template <class _InputIterator1, class _InputIterator2, class _BinaryPredicate>
 _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
-equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2,
+equal(_InputIterator1 __first1,
+      _InputIterator1 __last1,
+      _InputIterator2 __first2,
+      _InputIterator2 __last2,
       _BinaryPredicate __pred) {
   return std::__equal<_BinaryPredicate&>(
-      __first1, __last1, __first2, __last2, __pred, typename iterator_traits<_InputIterator1>::iterator_category(),
+      __first1,
+      __last1,
+      __first2,
+      __last2,
+      __pred,
+      typename iterator_traits<_InputIterator1>::iterator_category(),
       typename iterator_traits<_InputIterator2>::iterator_category());
 }