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  1. #include <iostream>
  2.  
  3. template < typename T > struct A
  4. {
  5.     template< void (*FN) (T) > static void call( T arg ) { FN(arg) ; }
  6.  
  7. 	static void call( void (*fn)(T), T arg ) { fn(arg) ; }
  8. };
  9.  
  10. void foo( int a ) { std::cout << "foo(" << a << ")\n" ; }
  11.  
  12. int main()
  13. {
  14.     A<int>::call<foo>(1) ;
  15.  
  16.     A<int>::call( foo, 2 ) ;
  17. }
  18.  
Success #stdin #stdout 0s 2896KB
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stdin
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Standard input is empty
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foo(1)
foo(2)
https://ideone.com/YQBDwl
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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