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  1. struct A
  2. {
  3.     virtual void test()=0;
  4. };
  5.  
  6. struct B : A
  7. {
  8.  
  9. };
  10.  
  11. int main()
  12. {
  13.     B b;    
  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 function ‘int main()’:
prog.cpp:13:7: error: cannot declare variable ‘b’ to be of abstract type ‘B’
prog.cpp:6:8: note:   because the following virtual functions are pure within ‘B’:
prog.cpp:3:18: note: 	virtual void A::test()
stdout
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Standard output is empty
https://ideone.com/Dbx9iH
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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