[libcxx-commits] [libcxx] [libc++] Optimize __tree::__find_equal (PR #155245)

[Louis Dionne via libcxx-commits]

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@@ -38,6 +38,9 @@ template <bool _Bp, class _Tp = void>
 using enable_if_t = typename enable_if<_Bp, _Tp>::type;
 #endif
 
+template <bool __cond, class _Tp, __enable_if_t<__cond, int> = 0>
+using __enable_specialization_if = _Tp;
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ldionne wrote:

```suggestion

```

https://github.com/llvm/llvm-project/pull/155245