next!,partialNext!

Usage

next! g
partialNext! g

Signatures

next!:	% $\to$ T
partialNext!:	% $\to$ Partial T

Parameter	Type	Description
g	%	a generator

Description

next!(g) and partialNext!(g) both return the next element produced by g, updating g. If g is empty, then next!(g) throws the exception GeneratorException, while partialNext!(g) returns failed .