clang/test/PCH/cxx20-unevaluated-lambda.cpp

   1 // RUN: %clang_cc1 -std=c++20 -include %s %s -o %t
   2
   3 // RUN: %clang_cc1 -std=c++20 -emit-pch %s -o %t
   4 // RUN: %clang_cc1 -std=c++20 -include-pch %t -verify %s
   5
   6 // expected-no-diagnostics
   7
   8 #ifndef HEADER
   9 #define HEADER
  10
  11 template<typename T> auto f() -> decltype([]{ return T(42); });
  12
  13 #else /*included pch*/
  14
  15 static_assert(decltype(f<int>())()() == 42);
  16
  17 #endif // HEADER