[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, 4 insertions, 10 deletions

diff --git a/libcxx/src/optional.cpp b/libcxx/src/optional.cpp
index fc91152..6ba63f2 100644
--- a/libcxx/src/optional.cpp
+++ b/libcxx/src/optional.cpp
@@ -10,17 +10,13 @@
 #include <optional>
 #include <stdexcept>
 
-namespace std
-{
+namespace std {
 
 bad_optional_access::~bad_optional_access() noexcept = default;
 
-const char* bad_optional_access::what() const noexcept {
-  return "bad_optional_access";
-}
-
-} // std
+const char* bad_optional_access::what() const noexcept { return "bad_optional_access"; }
 
+} // namespace std
 
 #include <experimental/__config>
 
@@ -28,9 +24,7 @@ const char* bad_optional_access::what() const noexcept {
 //  Even though it no longer exists in a header file
 _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL
 
-class _LIBCPP_EXPORTED_FROM_ABI _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS bad_optional_access
-  : public std::logic_error
-{
+class _LIBCPP_EXPORTED_FROM_ABI _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS bad_optional_access : public std::logic_error {
 public:
   bad_optional_access() : std::logic_error("Bad optional Access") {}