[libcxx-commits] [libcxx] [libc++] Speed-up {random_access, forward}_range-based operations in vector<bool>[3/3] (PR #120134)

[Louis Dionne via libcxx-commits]

================
@@ -95,6 +117,64 @@ struct __copy_impl {
     }
   }
 
+  template <class _InIter,
+            class _Sent,
+            class _Cp,
+            __enable_if_t<(__has_forward_iterator_category<_InIter>::value ||
+                           __has_iterator_concept_convertible_to<_InIter, forward_iterator_tag>::value) &&
+                              is_convertible<typename iterator_traits<_InIter>::value_type, bool>::value,
+                          int> = 0>
+  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_InIter, __bit_iterator<_Cp, false> >
+  operator()(_InIter __first, _Sent __last, __bit_iterator<_Cp, false> __result) const {
----------------
ldionne wrote:

```suggestion
  operator()(_InIter __first, _Sent __last, __bit_iterator<_Cp, /* IsConst */false> __result) const {
```

https://github.com/llvm/llvm-project/pull/120134