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#include <iostream>
#include <functional>
 
template<class... Ts>
void callFunction(const std::function<void(Ts...)>& function, Ts... parameters)
{
	function(parameters...);
}
 
void myFunc(const std::string& output)
{
	std::cout << output << std::endl;
}
 
int main() 
{
	callFunction<const std::string&>(&myFunc, "Hello world");
	return 0;
}

prog.cpp: In function ‘int main()’:
prog.cpp:17:57: error: no matching function for call to ‘callFunction(void (*)(const string&), const char [12])’
  callFunction<const std::string&>(&myFunc, "Hello world");
                                                         ^
prog.cpp:5:6: note: candidate: template<class ... Ts> void callFunction(const std::function<void(Ts ...)>&, Ts ...)
 void callFunction(const std::function<void(Ts...)>& function, Ts... parameters)
      ^~~~~~~~~~~~
prog.cpp:5:6: note:   template argument deduction/substitution failed:
prog.cpp:17:57: note:   mismatched types ‘const std::function<void(Ts ...)>’ and ‘void (*)(const string&) {aka void (*)(const std::__cxx11::basic_string<char>&)}’
  callFunction<const std::string&>(&myFunc, "Hello world");
                                                         ^

Standard output is empty