Generator Generator Category: functors Component type: concept Description A Generator is a kind of function object: an object that is called as if it were an ordinary C++ function. A Generator is called with no arguments. Refinement of Assignable Associated types Result type The type returned when the Generator is called Notation F A type that is a model of Generator Result The result type of F f Object of type F Definitions The range of a Generator is the set of all possible value that it may return. Valid expressions Name Expression Type requirements Return type Function call f()   Result Expression semantics Name Expression Precondition Semantics Postcondition Function call f()   Returns some value of type Result [1] The return value is in f's range. Complexity guarantees Invariants Models Result (*)() Notes [1] Two different invocations of f may return different results: a Generator may refer to local state, perform I/O, and so on. The expression f() is permitted to change f's state; f might, for example, represent a pseudo-random number generator. See also Function Object overview, Unary Function, Binary Function, Adaptable Generator Copyright © 1999 Silicon Graphics, Inc. All Rights Reserved. TrademarkInformation