generator

Usage

for x in s repeat { ...}
for x in generator s repeat { ...}

Signature

generator:

% $\to$ Generator T

Parameter	Type	Description
s	%	a stream

Description

This function allows the elements of a stream to be iterated.

Remarks

Since those generators are infinite, you should have a termination condition either inside the loop or in parallel with the generator in order to guarantee termination.

Example

The following code creates the stream of all the squares for $n \ge 0$ and prints those of them that are smaller than $1000$:

	import from MachineInteger, Stream MachineInteger;
	s := stream(0, (n:MachineInteger):MachineInteger +-> n^2);
	for x in s while x < 1000 repeat { stdout << x << newline; }