clang/test/SemaCXX/coroutine-no-valid-dealloc.cpp

   1 // Test that if the compiler will emit error message if the promise_type contain
   2 // operator delete but none of them are available. This is required by the standard.
   3 // RUN: %clang_cc1 %s -std=c++20 %s -fsyntax-only -verify
   4
   5 #include "Inputs/std-coroutine.h"
   6
   7 namespace std {
   8     typedef __SIZE_TYPE__ size_t;
   9     enum class align_val_t : size_t {};
  10 }
  11
  12 struct task {
  13   struct promise_type {
  14     auto initial_suspend() { return std::suspend_always{}; }
  15     auto final_suspend() noexcept { return std::suspend_always{}; }
  16     auto get_return_object() { return task{}; }
  17     void unhandled_exception() {}
  18     void return_value(int) {}
  19
  20     void operator delete(void *ptr, void *meaningless_placeholder); // expected-note {{member 'operator delete' declared here}}
  21   };
  22 };
  23
  24 task f() { // expected-error 1+{{no suitable member 'operator delete' in 'promise_type'}}
  25   co_return 43;
  26 }