Initializing help system before first use

# IPostfixExtractor Interface

Helper class to extract formulas into a postfix representation.
Namespace: Optimizer.Objects
Assembly: xprsdn (in xprsdn.dll) Version: 46.01.02+e8d9493ad804415424ae931ce2abaeb6c55a6d5a
Syntax
C#

    public interface IPostfixExtractor

The IPostfixExtractor type exposes the following members.

Methods

| Name | Description
--- | --- | ---
| AddToken | Append a token to this extractor.
| DereferenceVariable | Derefence a value. Converts a variable object into a variable index. This is different from x.GetIndex() as it also checks whether the problem for which we are extracting the current formula is currently in a state in which variables can be Dereferenced (i.e. not in a callback and not in a presolved state). If it is not then an exception is raised.
| EndExpression | Signal that a (sub)expression has been extracted.
| StartExpression |

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See Also

#### Reference

Optimizer.Objects Namespace
Covered Topics

- IPostfixExtractor Methods

Parent Topic Optimizer.Objects

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