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  1. #include <iostream>
  2. #include <utility>
  3. #include <typeinfo>
  4. using namespace std;
  5.  
  6. auto func() {
  7. 	int a = 0 ;
  8.  
  9. 	auto increase = [ &a ]( int i = 1 ){ a += i ; } ;
  10. 	auto print = [ &a ](){ cout << a << '\n' ; } ;
  11. 	/*
  12. 	cout << typeid( decltype( print ) ).name() << '\n'
  13. 		 << typeid( decltype( increase ) ).name() << '\n' ;
  14. 	*/
  15. 	pair< decltype(increase), decltype(print) > p = make_pair( increase, print ) ;
  16. 	return p ;
  17. }
  18.  
  19. int main() {
  20.  
  21. 	auto lambdas = func() ;
  22.  
  23. 	auto increase = lambdas.first ;
  24. 	auto print = lambdas.second ;
  25.  
  26. 	print() ;
  27. 	increase() ;
  28. 	print() ;
  29. 	increase( 123456 ) ;
  30. 	print() ;
  31.  
  32. 	return 0;
  33. }
Success #stdin #stdout 0s 3412KB
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-1218965939
-1218965938
-1218842482
https://ideone.com/zy0vEg
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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