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  1. #include <iostream>
  2.  
  3. struct Base {};
  4.  
  5. struct Derived : public Base {};
  6.  
  7. int main() {
  8. 	Derived ** d = nullptr;
  9. 	Base ** b = static_cast<Base **>(d);
  10.  
  11. 	return 0;
  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:9:36: error: invalid static_cast from type ‘Derived**’ to type ‘Base**’
  Base ** b = static_cast<Base **>(d);
                                    ^
prog.cpp:9:10: warning: unused variable ‘b’ [-Wunused-variable]
  Base ** b = static_cast<Base **>(d);
          ^
stdout
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Standard output is empty
https://ideone.com/Jvnxvh
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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