Remove reference from std::tuple members

Question

I\'m implementing save/restore functionality for some variables with the help of stl tuples as follows:

double a = 1, b = 2;
int c = 3;
auto tupleRef = std::         


        

Answer 1

Thanks to R. Martinho Fernandes, whose code I was able to modify to compile in Visual Studio where tuple is hard-coded as a template with 10 types with unused types being empty structs.

#define _RR_(x) typename std::remove_reference::type
#define _no_ref_tuple_  std::tuple<_RR_(T0), _RR_(T1), _RR_(T2), _RR_(T3), _RR_(T4), _RR_(T5), _RR_(T6), _RR_(T7), _RR_(T8), _RR_(T9)>

template 
_no_ref_tuple_ map_remove_ref(std::tuple const& t) 
{
    return _no_ref_tuple_(t);
}

I also think that binding of the refs into tuple like in

auto tupleRef = std::make_tuple(std::ref(x_0), ..., std::ref(x_n));

can be made less verbose:

auto tupleRef = std::forward_as_tuple(x_0, ..., x_n);

but this again will not work in VS, as there is no std::forward_as_tuple.