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

To be more explicit you can use int() as a constructor to create a temporary:

replace(begin(foo), end(foo), int(foo.front()), 13);

Instead of adding a value. See Demo.