Passing to a Reference Argument by Value

Question

Consider this simple program:

vector foo = {0, 42, 0, 42, 0, 42};
replace(begin(foo), end(foo), foo.front(), 13);

for(const auto& i : foo) co         


        

Answer 1

A solution could be as follows (even though you are making a temporary)

template
void replace_value_of_first(std::vector& v, const T& value)
{
    std::replace(v.begin(), v.end(), T(v.front()), value);
}