gcc/testsuite/g++.dg/concepts/diagnostic2.C

   1 // { dg-do compile { target c++2a } }
   2 // { dg-options "-fdiagnostics-show-caret" }
   3
   4 template<typename T>
   5   inline constexpr bool foo_v = false;
   6
   7 template<typename T>
   8   concept foo = foo_v<T> || foo_v<T&>; // { dg-message "no operand" }
   9 /* { dg-begin-multiline-output "" }
  10    concept foo = foo_v<T> || foo_v<T&>;
  11                  ~~~~~~~~~^~~~~~~~~~~~
  12    { dg-end-multiline-output "" } */
  13
  14 template<typename T>
  15   requires foo<T>
  16   void bar();
  17 /* { dg-begin-multiline-output "" }
  18    void bar();
  19    { dg-end-multiline-output "" } */
  20 /* { dg-prune-output "~" } */
  21
  22 void
  23 baz()
  24 {
  25   bar<int>(); // { dg-error "no match" }
  26 /* { dg-begin-multiline-output "" }
  27    bar<int>();
  28             ^
  29    { dg-end-multiline-output "" } */
  30 }