RE: [office-formula] Propagation of errors

The functions ISERR, ISERROR and ISNA are examples of functions that do not propagate errors.  The vast majority of functions do propagate errors.  Defining how functions and operators propagate errors may be a complex task given that OpenFormula allows for a wide range of error values, but it would be worthwhile task.

-Eric

-----Original Message-----
From: Dennis E. Hamilton [mailto:] 
Sent: Friday, December 11, 2009 8:34 AM
To: 'Patrick Durusau'; 
Subject: RE: [office-formula] Propagation of errors

I suspect that almost all propagate errors, either the same error or a new
one appropriate to the nature of the function and the error encountered.
(Exceptions would be functions and operations that are defined to check for
errors.)

How functions and operations propagate what errors is probably something to
be defined (or made implementation defined ... [;<).  There might be a small
number of cases that could be appealed to by reference rather than
restatement.

 - Dennis 

-----Original Message-----
From: Patrick Durusau [mailto:] 
Sent: Friday, December 11, 2009 06:11
To: 
Subject: [office-formula] Propagation of errors

Greetings!

Do *any* of the functions as defined by OpenFormula propagate errors?

Searching on "propagate error values" I haven't found any.

Make me wonder why we keep repeating this.

Hope everyone is having a great day!

Patrick

-- 
Patrick Durusau

Chair, V1 - US TAG to JTC 1/SC 34
Convener, JTC 1/SC 34/WG 3 (Topic Maps)
Editor, OpenDocument Format TC (OASIS), Project Editor ISO/IEC 26300
Co-Editor, ISO/IEC 13250-1, 13250-5 (Topic Maps) 


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