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  1. struct X
  2. {
  3.     int& r;
  4. };
  5.  
  6. int main()
  7. {
  8.     int i = 1, k = 2;
  9.     X a { i };
  10.     X b { k };
  11.     a = b;   // means a.r = b.r, which in turn means i = k
  12.     std::cout << i << ' ' << k << '\n';
  13. }
  14.  
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 member function 'X& X::operator=(const X&)':
prog.cpp:2:1: error: non-static reference member 'int& X::r', can't use default assignment operator
prog.cpp: In function 'int main()':
prog.cpp:11:9: note: synthesized method 'X& X::operator=(const X&)' first required here 
prog.cpp:12:5: error: 'cout' is not a member of 'std'
stdout
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Standard output is empty
https://ideone.com/j9GBH
language:
C++14 (gcc 8.3)
created:
13 years ago
visibility:
public

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