fix(core): fix std hash for xcode15

Tencent · Sep 19, 2023 · 28a0e36 · 28a0e36
1 parent d7aef60
commit 28a0e36
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diff --git a/modules/footstone/include/footstone/string_view.h b/modules/footstone/include/footstone/string_view.h
@@ -157,6 +157,15 @@ class string_view final {
 }  // namespace stringview
 }  // namespace footstone
 
+#ifdef __APPLE__
+#if defined(__clang__) && __clang_major__ >= 15
+template<>
+struct std::hash<footstone::stringview::string_view::u8string> {
+  std::size_t operator()(const footstone::stringview::string_view::u8string& value) const noexcept;
+};
+#endif
+#endif
+
 template<>
 struct std::hash<footstone::stringview::string_view> {
   std::size_t operator()(const footstone::stringview::string_view& value) const noexcept;

diff --git a/modules/footstone/src/string_view.cc b/modules/footstone/src/string_view.cc
@@ -24,6 +24,15 @@
 
 using string_view = footstone::stringview::string_view;
 
+#ifdef __APPLE__
+#if defined(__clang__) && __clang_major__ >= 15
+std::size_t std::hash<footstone::stringview::string_view::u8string>::operator()(
+  const footstone::stringview::string_view::u8string& value) const noexcept {
+  return std::hash<std::string>()(std::string(value.begin(), value.end()));
+}
+#endif
+#endif
+
 #if defined(__GLIBC__) && !defined(__cpp_char8_t)
 std::size_t std::hash<string_view::u8string>::operator()(
   const string_view::u8string& value) const noexcept {