[libcxx-commits] [PATCH] D104760: [libcxx][NFC] removes `swap`'s dependency on `swap_ranges`

[Christopher Di Bella via Phabricator via libcxx-commits]

cjdb updated this revision to Diff 353848.
cjdb added a comment.

- removes forward declaration of `swap_ranges`
- fixes header mishap


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D104760/new/

https://reviews.llvm.org/D104760

Files:
  libcxx/include/type_traits


Index: libcxx/include/type_traits
===================================================================
--- libcxx/include/type_traits
+++ libcxx/include/type_traits
@@ -4190,11 +4190,6 @@
 
 // swap, swap_ranges
 
-template <class _ForwardIterator1, class _ForwardIterator2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
-_ForwardIterator2
-swap_ranges(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2);
-
 #ifndef _LIBCPP_CXX03_LANG
 template <class _Tp>
 using __swap_result_t = typename enable_if<is_move_constructible<_Tp>::value && is_move_assignable<_Tp>::value>::type;
@@ -4221,7 +4216,8 @@
 >::type
 swap(_Tp (&__a)[_Np], _Tp (&__b)[_Np]) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value)
 {
-    _VSTD::swap_ranges(__a, __a + _Np, __b);
+    for (size_t __i = 0; __i != _Np; ++__i)
+        swap(__a[__i], __b[__i]);
 }
 
 template <class _ForwardIterator1, class _ForwardIterator2>


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