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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 		return 0;
  6. }
  7. class X;
  8. class Y;
  9.  
  10. class X {
  11.  
  12. };
  13.  
  14. class Y {
  15.     X x;
  16. };
  17. X::Y y;
  18.  
Compilation error #stdin compilation error #stdout 0s 3452KB
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stdin
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Standard input is empty
compilation info 
prog.cpp:17:4: error: 'Y' in 'class X' does not name a type
 X::Y y;
    ^
stdout
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Standard output is empty
https://ideone.com/g6mWvl
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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