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#include <iostream>
using namespace std;
 
class MyClass {
	int foo0() { return 0; }
	int foo1() { return 1; }
	template<int (MyClass::*fun)()> void test0() { const auto i = fun(); }
	void test1() { test0<&MyClass::foo0>(); }
	void test2() {
		const auto fun0 = &MyClass::test0<&MyClass::foo0>;
		const auto fun1 = &MyClass::test0<&MyClass::foo1>;
		fun0();
		fun1();
	}	
};
 
int main() {
	// your code goes here
	return 0;
}

prog.cpp: In member function ‘void MyClass::test0()’:
prog.cpp:7:68: error: must use ‘.*’ or ‘->*’ to call pointer-to-member function in ‘fun (...)’, e.g. ‘(... ->* fun) (...)’
  template<int (MyClass::*fun)()> void test0() { const auto i = fun(); }
                                                                    ^
prog.cpp: In member function ‘void MyClass::test2()’:
prog.cpp:12:8: error: must use ‘.*’ or ‘->*’ to call pointer-to-member function in ‘fun0 (...)’, e.g. ‘(... ->* fun0) (...)’
   fun0();
        ^
prog.cpp:13:8: error: must use ‘.*’ or ‘->*’ to call pointer-to-member function in ‘fun1 (...)’, e.g. ‘(... ->* fun1) (...)’
   fun1();
        ^

Standard output is empty