[libcxx-commits] [libcxx] [libc++] Optimize char_traits a bit (PR #72799)

[Louis Dionne via libcxx-commits]

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@@ -353,9 +340,15 @@ struct _LIBCPP_TEMPLATE_VIS char_traits<char16_t> {
   _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX17 int
   compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
   _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX17 size_t length(const char_type* __s) _NOEXCEPT;
-  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX17 const char_type*
-  find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT;
 
+  _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX17 const char_type*
+  find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT {
+    __identity __proj;
+    const char_type* __match = std::__find_impl(__s, __s + __n, __a, __proj);
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ldionne wrote:

Unrelated to this patch, but can we rename `__find_impl` to `__find` for consistency?

https://github.com/llvm/llvm-project/pull/72799