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  1. #include <iostream>
  2.  
  3. class Test {
  4. public:
  5. 	Test(){}
  6.  
  7. 	typedef bool(*Fun)();
  8.  
  9. 	Fun F() {
  10. 		return [=]()->bool {return this->Show(); };//invalid...Orz
  11. 	}
  12. 	bool Show() {
  13. 		std::cout << "seikou!" << std::endl;
  14. 	}
  15. };
  16.  
  17. int main() {
  18. 	Test T;
  19.  
  20. 	auto f = T.F();
  21.  
  22. 	f();
  23.  
  24. 	return 0;
  25. }
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 member function ‘bool (* Test::F())()’:
prog.cpp:10:44: error: cannot convert ‘Test::F()::<lambda()>’ to ‘Test::Fun {aka bool (*)()}’ in return
   return [=]()->bool {return this->Show(); };//invalid...Orz
                                            ^
stdout
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Standard output is empty
https://ideone.com/RcWgQx
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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