Difference between revisions of "PEXIST()"

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==See Also==
 
==See Also==
[[FUNCTION]], [[DISPLAY PROCEDURE]], [[LIST PROCEDURE]], [[PROCEDURE]], [[RETURN]], [[SET PROCEDURE]]
+
[[CLASS_EXISTS()]], [[FUNCTION]], [[FUNCTION_EXISTS()]], [[DISPLAY PROCEDURE]], [[LIST PROCEDURE]], [[PROCEDURE]], [[RETURN]], [[SET CLASSLIB]], [[SET PROCEDURE]]
  
 
==Description==
 
==Description==
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[[Category:Documentation]]
 
[[Category:Documentation]]
 
[[Category:Functions]]
 
[[Category:Functions]]
 +
[[Category:Libraries]]
 
[[Category:Lianja VFP Extensions]]
 
[[Category:Lianja VFP Extensions]]
 
[[Category:VFP Function Extensions]]
 
[[Category:VFP Function Extensions]]

Latest revision as of 05:44, 19 March 2013

Purpose

Function to determine whether a function or procedure is active

Syntax

PEXIST(<expC>)

See Also

CLASS_EXISTS(), FUNCTION, FUNCTION_EXISTS(), DISPLAY PROCEDURE, LIST PROCEDURE, PROCEDURE, RETURN, SET CLASSLIB, SET PROCEDURE

Description

The PEXIST() function determines whether the specified user defined function or procedure is active. The procedure or function is specified by the character expression <expC>. If the procedure or function specified by <expC> is active, the PEXIST() function returns .T., otherwise .F..

Example

if not pexist("myproc")
    set procedure to mylib
endif

Products

Lianja, Lianja Server