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

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