#include using namespace Upp; CONSOLE_APP_MAIN { Vector v; v.Add(1); v.Add(2); DUMPC(v); Vector v1 = v; DUMPC(v1); // DUMPC(v); -> v is picked, this would crash with runtime error v <<= v1; DUMPC(v1); DUMPC(v); Vector v2(v, 0); DUMPC(v2); DUMPC(v); }