[libcxx-commits] [libcxx] [libc++] Make lazy three way comparator optimization apply in older standard modes (PR #218525)

[Nikolas Klauser via libcxx-commits]

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@@ -713,16 +714,16 @@ template <class _MapValueT, class _Key, class _TransparentKey, class _Compare>
 struct __lazy_synth_three_way_comparator<__map_value_compare<_Key, _MapValueT, _Compare>, _MapValueT, _TransparentKey> {
   __lazy_synth_three_way_comparator<_Compare, _Key, _TransparentKey> __comp_;
 
-  __lazy_synth_three_way_comparator(
+  _LIBCPP_CONSTEXPR_SINCE_CXX26 __lazy_synth_three_way_comparator(
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philnik777 wrote:

Unrelated change?

https://github.com/llvm/llvm-project/pull/218525