| R. Kowalski. Algorithms = Logic + Control. Communicatiosn of the ACM, 22(7):424--436, July 1979. |
....value; an expression that accesses a record field bound to blocks until some other expression replaces the with a non unbound value. Insofar as it provides an explicit synchronization mechanism, unbound values in COE correspond roughly to I structures [6] found in Id [24] or logical variables [22, 30] found in logic languages. Each actor executes the same high level process repeatedly: 1) wait for new input, 2) attach result to the output stream and (3) recurse. For example, the actor waits for a new value for i to be attached to edge2 by false gate 1 . Once a value is written, the actor ....
R. Kowalski. Algorithms = Logic + Control. Communicatiosn of the ACM, 22(7):424--436, July 1979.
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