> Owned boxes shouldn't be commonly used. There's close to no reason to use one for anything but a recursive data structure or in rare cases for an owned trait object. > > http://static.rust-lang.org/doc/master/tutorial.html#boxes > > It's important to note that ~[T] and ~str are not owned boxes. They're just sugar for dynamic arrays, and are common containers. > It's so confusing. If it's not owned box, why not remove ~? Make "str" default be dynamic should OK.
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