clang/test/SemaCXX/gh53815.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++20 %s
   2 // expected-no-diagnostics
   3
   4 // Check that we don't crash due to forgetting to check for placeholders
   5 // in the RHS of '.*'.
   6
   7 template <typename Fn>
   8 static bool has_explicitly_named_overload() {
   9   return requires { Fn().*&Fn::operator(); };
  10 }
  11
  12 int main() {
  13   has_explicitly_named_overload<decltype([](auto){})>();
  14 }
  15
  16 template <typename Fn>
  17 constexpr bool has_explicitly_named_overload_2() {
  18   return requires { Fn().*&Fn::operator(); };
  19 }
  20
  21 static_assert(!has_explicitly_named_overload_2<decltype([](auto){})>());