Word description Grows vector, increasing its length by one, and outputs a struct object wrapping the newly allocated storage.
Notes This word allows struct objects to be streamed into a struct vector efficiently without excessive copying. The typical Factor idiom for pushing a new object onto a vector, when used with struct vectors, will allocate and copy a temporary struct object:
foo <struct>
5 >>a
6 >>b
foo-vector{ } clone push
By using push-new, the new struct can be allocated directly from the vector and the intermediate copy can be avoided: