You are here: Symbol Reference > MtxParseExpr Namespace > Classes > TMtxExpression Class > public > TMtxExpression.Undefine Method
MtxVec VCL
ContentsIndex
PreviousUpNext
TMtxExpression.Undefine Method
TMtxExpression Class | TMtxExpression Members | MtxParseExpr Namespace | public | Example | See Also
Collapse All

Removes symbol from defined symbols.

Pascal
function Undefine(const AName: string): boolean;
Parameters
Parameters 
Description 
AName 
Defines the name of removed symbol. 
Returns

True, if removing symbol AName was successful.

Notes

Any variables, constanst, functions and operators may be undefined. This is different from the "undefine" function called from the script, which will simply undefine the type of the variable thus allowing it to have its type defined again.

See Also
Example
Uses MtxParseExpr, MtxParseClass; procedure Example(myParser: TMtxExpression); var success: Boolean; begin succes := myParser.Undefine('x'); end;
Examples on GitHub
Group
Links
Copyright (c) 1999-2025 by Dew Research. All rights reserved.
What do you think about this topic? Send feedback!