clang/test/CXX/dcl.decl/dcl.meaning/dcl.fct/dcl.fct.def.default/p1.cpp

   1 // RUN: %clang_cc1 -std=c++11 -verify %s
   2
   3 // A function that is explicitly defaulted shall
   4 // [...]
   5 //   -- not have default arguments
   6 struct DefArg {
   7   static DefArg &&make();
   8   DefArg(int n = 5) = default; // expected-error {{an explicitly-defaulted constructor cannot have default arguments}}
   9   DefArg(const DefArg &DA = make()) = default; // expected-error {{an explicitly-defaulted constructor cannot have default arguments}}
  10   DefArg(const DefArg &DA, int k = 3) = default; // expected-error {{an explicitly-defaulted copy constructor cannot have default arguments}}
  11   DefArg(DefArg &&DA = make()) = default; // expected-error {{an explicitly-defaulted constructor cannot have default arguments}}
  12   DefArg(DefArg &&DA, int k = 3) = default; // expected-error {{an explicitly-defaulted move constructor cannot have default arguments}}
  13   DefArg &operator=(const DefArg&, int k = 4) = default; // expected-error {{parameter of overloaded 'operator=' cannot have a default argument}}
  14   DefArg &operator=(DefArg&&, int k = 4) = default; // expected-error {{parameter of overloaded 'operator=' cannot have a default argument}}
  15   ~DefArg(int k = 5) = default; // expected-error {{destructor cannot have any parameters}}
  16 };