[libcxx-commits] [libcxx] [libc++] Refactor internal index_sequence API to match the public one (PR #149475)

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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions h,,cpp -- libcxx/include/__functional/bind.h libcxx/include/__memory_resource/polymorphic_allocator.h libcxx/include/__mutex/once_flag.h libcxx/include/__thread/thread.h libcxx/include/__tuple/make_tuple_types.h libcxx/include/__tuple/tuple_element.h libcxx/include/__utility/integer_sequence.h libcxx/include/__utility/pair.h libcxx/include/bitset libcxx/include/future libcxx/include/mutex libcxx/include/scoped_allocator libcxx/include/tuple libcxx/include/variant libcxx/test/std/utilities/tuple/tuple.tuple/tuple.apply/make_from_tuple.pass.cpp
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View the diff from clang-format here.
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diff --git a/libcxx/include/__utility/integer_sequence.h b/libcxx/include/__utility/integer_sequence.h
index 9c617dea4..908a9ee22 100644
--- a/libcxx/include/__utility/integer_sequence.h
+++ b/libcxx/include/__utility/integer_sequence.h
@@ -21,13 +21,15 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if __has_builtin(__make_integer_seq)
+#  if __has_builtin(__make_integer_seq)
 template <template <class _Tp, _Tp...> class _BaseType, class _Tp, _Tp _SequenceSize>
 using __make_integer_sequence_impl _LIBCPP_NODEBUG = __make_integer_seq<_BaseType, _Tp, _SequenceSize>;
-#else
-template <class _Tp, _Tp...> class _BaseType, class _Tp, _Tp _SequenceSize>
-using __make_integer_seuqnec_impl _LIBCPP_NODEBUG = _BaseType<_Tp, __integer_pack(_SequenceSize)...>;
-#endif
+#  else
+template <class _Tp, _Tp...>
+class _BaseType, class _Tp,
+    _Tp _SequenceSize > using __make_integer_seuqnec_impl _LIBCPP_NODEBUG =
+        _BaseType<_Tp, __integer_pack(_SequenceSize)...>;
+#  endif
 
 template <class _Tp, _Tp... _Indices>
 struct __integer_sequence {
@@ -42,7 +44,7 @@ using __index_sequence = __integer_sequence<size_t, _Indices...>;
 template <size_t _SequenceSize>
 using __make_index_sequence _LIBCPP_NODEBUG = __make_integer_sequence_impl<__integer_sequence, size_t, _SequenceSize>;
 
-#if _LIBCPP_STD_VER >= 14
+#  if _LIBCPP_STD_VER >= 14
 
 template <class _Tp, _Tp... _Indices>
 struct integer_sequence : __integer_sequence<_Tp, _Indices...> {};

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https://github.com/llvm/llvm-project/pull/149475