While

Description

This container executes the functors it contains while its condition is true. The condition is checked once before the first execution, using the value supplied to Initial Condition, and afterwards using the value set by a Set While Condition functor placed inside it. Each execution is called a step. While a step runs, the container makes the current step available to its contents through the internal output port Step.

Inputs

Name	Type	Description
Initial Condition	Boolean Value Type	Initial value of the condition that controls whether the loop runs.

Optional Inputs

Name	Type	Description	Default Value
Sequence Input	None Type	Ensures that the functor connected to this port finishes executing before this container starts.	None

Outputs

Name	Type	Description
Sequence Output	None Type	Connect this port to another container's Sequence Input to make this container finish executing before that other container starts.

Internal Outputs

Name	Type	Description
Step	Non Negative Integer Value Type	Current iteration step.

Internal Inputs

Name	Type	Description
Condition	Boolean Value Type	Current value of the condition that keeps the loop running, after the first execution.

Group

Control

Notes

Beyond the first execution, this container has no condition port of its own. Place a Set While Condition functor inside it and connect its output to decide whether the loop keeps running.

When Initial Condition may be false, and a result produced by the contained functors is used outside the container, connect a matching junction (such as Map Junction or Value Junction) after the container, so a value still reaches the rest of the model when the content never executes.

Internal Name

While