c++ - Template function defined in cpp file?

Question

I have the following piece of code where I'm using two template functions to access elements of a tuple. The print function will have code that requires more files to be #includeed and I don't want code bloating if I was to include it in a header, given that template functions are defined in a header. Is there a way I could move the function definitions into a cpp file and avoid recursive / duplicate inclusions?

#include <stdio.h>
#include <tuple>
#include <iostream>

template<std::size_t I = 0, typename... Tp>
inline typename std::enable_if<(I >= sizeof...(Tp)), void>::type
print(std::tuple<Tp...> &/*t*/) { }
        
template<std::size_t I = 0, typename... Tp>
inline typename std::enable_if<(I < sizeof...(Tp)), void>::type
print(std::tuple<Tp...> &t) { 
    std::cout << std::get<I>(t) << std::endl; 
}
        
int main()
{
    std::tuple<int, std::string, char> t = std::make_tuple(10, "Hello", 'A');
    print<0>(t);
    print<1>(t);
    print<2>(t);
    print<4>(t);
    return 0;
}

question from:https://stackoverflow.com/questions/65887116/template-function-defined-in-cpp-file

Answer 1

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