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  1. #include <stdio.h>
  2.  
  3. class Foo{};
  4.  
  5. class Bar : Foo {};
  6.  
  7. int main(void) {
  8. 	Bar b;
  9. 	Foo *fp = &b;
  10. 	dynamic_cast<Bar *>(fp);
  11. }
  12.  
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:9:13: error: 'Foo' is an inaccessible base of 'Bar'
  Foo *fp = &b;
             ^
prog.cpp:10:24: error: cannot dynamic_cast 'fp' (of type 'class Foo*') to type 'class Bar*' (source type is not polymorphic)
  dynamic_cast<Bar *>(fp);
                        ^
stdout
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Standard output is empty
https://ideone.com/Mn2Anf
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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