clang/test/CXX/special/class.copy/p3-cxx11.cpp

   1 // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -std=c++23 -fsyntax-only -verify %s
   2 // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -std=c++20 -fsyntax-only -verify %s
   3 // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -std=c++11 -fsyntax-only -verify %s
   4 class X {
   5   X(const X&);
   6
   7 public:
   8   X();
   9   X(X&&);
  10 };
  11
  12 X return_by_move(int i, X x) {
  13   X x2;
  14   if (i == 0)
  15     return x;
  16   else if (i == 1)
  17     return x2;
  18   else
  19     return x;
  20 }
  21
  22 void throw_move_only(X x) {
  23   X x2;
  24   throw x;
  25   throw x2;
  26 }
  27
  28 namespace PR10142 {
  29   struct X {
  30     X();
  31     X(X&&);
  32     X(const X&) = delete; // expected-note 2{{'X' has been explicitly marked deleted here}}
  33   };
  34
  35   void f(int i) {
  36     X x;
  37     try {
  38       X x2;
  39       if (i)
  40         throw x2; // okay
  41       throw x; // expected-error{{call to deleted constructor of 'X'}}
  42     } catch (...) {
  43     }
  44   }
  45
  46   template<typename T>
  47   void f2(int i) {
  48     T x;
  49     try {
  50       T x2;
  51       if (i)
  52         throw x2; // okay
  53       throw x; // expected-error{{call to deleted constructor of 'PR10142::X'}}
  54     } catch (...) {
  55     }
  56   }
  57
  58   template void f2<X>(int); // expected-note{{in instantiation of function template specialization 'PR10142::f2<PR10142::X>' requested here}}
  59 }