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  1. #include <iostream>
  2.  
  3. enum test;
  4. //Then some time later...
  5. enum test {RED, BLUE, GREEN};
  6.  
  7. int main() {
  8. 	test t = RED;
  9.  
  10. 	return 0;
  11. }
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:3:6: error: use of enum ‘test’ without previous declaration
 enum test;
      ^~~~
stdout
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Standard output is empty
https://ideone.com/e3Xgr7
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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