[libcxx-commits] [libcxx] [libc++][NFC] Make __is_segmented_iterator a variable template (PR #149976)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions ,cpp,h -- libcxx/include/__algorithm/copy.h libcxx/include/__algorithm/copy_backward.h libcxx/include/__algorithm/find.h libcxx/include/__algorithm/for_each.h libcxx/include/__algorithm/for_each_n.h libcxx/include/__algorithm/for_each_n_segment.h libcxx/include/__algorithm/move.h libcxx/include/__algorithm/move_backward.h libcxx/include/__iterator/segmented_iterator.h libcxx/include/deque libcxx/test/libcxx/containers/sequences/deque/segmented_iterator.compile.pass.cpp libcxx/test/libcxx/ranges/range.adaptors/range.join/segmented_iterator.compile.pass.cpp
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<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/include/__algorithm/for_each.h b/libcxx/include/__algorithm/for_each.h
index 71e40c378..e31fcae83 100644
--- a/libcxx/include/__algorithm/for_each.h
+++ b/libcxx/include/__algorithm/for_each.h
@@ -40,8 +40,8 @@ template <class _SegmentedIterator,
           class _Func,
           class _Proj,
           __enable_if_t<__is_segmented_iterator_v<_SegmentedIterator>, int> = 0>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-_SegmentedIterator __for_each(_SegmentedIterator __first, _SegmentedIterator __last, _Func& __func, _Proj& __proj) {
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _SegmentedIterator
+__for_each(_SegmentedIterator __first, _SegmentedIterator __last, _Func& __func, _Proj& __proj) {
   using __local_iterator_t = typename __segmented_iterator_traits<_SegmentedIterator>::__local_iterator;
   std::__for_each_segment(__first, __last, [&](__local_iterator_t __lfirst, __local_iterator_t __llast) {
     std::__for_each(__lfirst, __llast, __func, __proj);
diff --git a/libcxx/include/__algorithm/for_each_n.h b/libcxx/include/__algorithm/for_each_n.h
index a3a8d75b6..04650e15b 100644
--- a/libcxx/include/__algorithm/for_each_n.h
+++ b/libcxx/include/__algorithm/for_each_n.h
@@ -75,8 +75,8 @@ template <class _SegmentedIterator,
                             __has_random_access_iterator_category<
                                 typename __segmented_iterator_traits<_SegmentedIterator>::__local_iterator>::value,
                         int> = 0>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-_SegmentedIterator __for_each_n(_SegmentedIterator __first, _Size __orig_n, _Func& __f, _Proj& __proj) {
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _SegmentedIterator
+__for_each_n(_SegmentedIterator __first, _Size __orig_n, _Func& __f, _Proj& __proj) {
   using __local_iterator_t = typename __segmented_iterator_traits<_SegmentedIterator>::__local_iterator;
   return std::__for_each_n_segment(__first, __orig_n, [&](__local_iterator_t __lfirst, __local_iterator_t __llast) {
     std::__for_each(__lfirst, __llast, __f, __proj);

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https://github.com/llvm/llvm-project/pull/149976