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  1. #include<iostream>
  2.  
  3. struct B { 
  4.   union U {
  5.     struct S {
  6.     // some data
  7.     } s;
  8.     int i;
  9.   }
  10.   u {100};  
  11. };
  12.  
  13. int main () {
  14.   B obj;
  15.   std::cout << "obj.u.i = " << obj.u.i << "\n";
  16. }
  17.  
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:10:9: error: could not convert ‘100’ from ‘int’ to ‘B::U::S’
stdout
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Standard output is empty
https://ideone.com/5tS7q9
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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