Initializing help system before first use

callfunc

Purpose
Call a public function with the given name
Synopsis
procedure callfunc(procname:string, retval:any)
procedure callfunc(procname:string, retval:any, p1, p2...)
Arguments
procname 
The name of the procedure to call
retval 
Union where the result of the function call is returned
pi 
Parameters of the procedure
Example
The following: 
public function product(i:integer,j:integer):integer
 returned:=i*j
end-function
declarations
 u:any
end-declarations

callfunc('product',u,4,4)
writeln("4*4=",u.integer)
produces this output: 
4*4=16
Further information
1. This routine selects the function to call based on the provided arguments without performing any conversion (for instance using an integer where a real is expected will not work). The execution will terminate on a runtime error if no compatible function can be found.
2. The result of the function call is returned via the parameter retval that must be a union compatible with the type of the function. The execution will terminate on a runtime error if the result of the call cannot be saved in the provided entity.
Related topics
callproc

Parent Topic Procedures and functions

© 2001-2022 Fair Isaac Corporation. All rights reserved. This documentation is the property of Fair Isaac Corporation (“FICO”). Receipt or possession of this documentation does not convey rights to disclose, reproduce, make derivative works, use, or allow others to use it except solely for internal evaluation purposes to determine whether to purchase a license to the software described in this documentation, or as otherwise set forth in a written software license agreement between you and FICO (or a FICO affiliate). Use of this documentation and the software described in it must conform strictly to the foregoing permitted uses, and no other use is permitted.