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  1. class A {
  2. public:
  3.     A() = default;
  4.     A(const A&) = delete;
  5.     A& operator=(const A&) = delete;
  6. };
  7.  
  8. class B{
  9. public:
  10.     B(const A& a)
  11.         : a{a}
  12.     { }
  13. private:
  14.     const A& a;
  15. };
  16.  
  17. int main()
  18. {
  19.     A a{};
  20.     B b{a};
  21. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In constructor ‘B::B(const A&)’:
prog.cpp:11:14: error: use of deleted function ‘A::A(const A&)’
         : a{a}
              ^
prog.cpp:4:5: error: declared here
     A(const A&) = delete;
     ^
stdout
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Standard output is empty
https://ideone.com/x1CVwx
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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