alias for multi parameter function template - templates

Question

I am trying to create a template for a multi-parameter function, and then an alias for a particular instantiation. From this really good post:
C++11: How to alias a function?
I found example code that works for a single function parameter and single template parameter:
#include <iostream>
namespace Bar
{
void test()
{
std::cout << "Test\n";
}
template<typename T>
void test2(T const& a)
{
std::cout << "Test: " << a << std::endl;
}
}
void (&alias)() = Bar::test;
void (&a2)(int const&) = Bar::test2<int>;
int main()
{
Bar::test();
alias();
a2(3);
}
When I try to expand to two function parameters as such:
void noBarTest(T const& a, T const& b)
{
std::cout << "noBarTest: " << a << std::endl;
}
void(&hh)(int const&, int const&) = noBarTest<int, int>;
I get these errors in Visual Studio:
error C2440: 'initializing' : cannot convert from 'void (__cdecl
*)(const T &,const T &)' to 'void (__cdecl &)(const int &,const int &)'
IntelliSense: a reference of type "void (&)(const int &, const int &)"
(not const-qualified) cannot be initialized with a value of type
""
I thought I followed the pattern exactly in expanding to 2 arguments.
What's the proper syntax for this?

Answer 1

template <typename T>
void noBarTest(T const& a, T const& b)
{
}
void(&hh)(int const&, int const&) = noBarTest<int>; // Only once
int main() {
return 0;
}
The type parameter int needs to be specified only once in noBarTest<int>.