Differences in Functions and Procedures in Fox 2.6

[seekwall]

Can someone please tell me the difference between user defined procedures and user defined functions in FoxPro 2.6. When should I use one or the other ?

The help file uses the same example, so I can't differentiate between the two.

Paul

 

[tesar]

Major differences:
function return one value, assigned by RETURN.
It may be write directly in expressions.
Procedure must be called "do" and,
although as function may too alter variables,
have no value.

 

[dgrewe]

Paul,
Try this answer.
You never need to use the FUNCTION statement.
The PROCEDURE statement will do the what a FUNCTION statement does.

optional - [memvar list seperated with commas]
you do not have to pass memory variables to a FUNCTION or a PROCEDURE,

However
If in you program you define a routine as a FUNCTION,
Then you MUST call it as a FUNCTION like this:
=FUNCTION([memvar list seperated with commas])
or
memvar=FUNCTION([memvar list seperated with commas])
or
if FUNCTION() > value



If in you program you define a routine as a PRODECURE, then you can call it as a PROCEDURE or as a FUNCTION like this
do PROCEDURE [with memvar list seperated with commas]
or
=PROCEDURE([memvar list seperated with commas])
or
Memvar=PROCEDURE([memvar list seperated with commas])
or
if PROCEDURE([memvar list seperated with commas]) > value David W. Grewe
Dave@internationalbid.com
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