Number: 924

Date:  2-May-84 12':32':09

Submitter: Sannella.PA

Source: Masinter.pa

Subject: (/SETPROPLIST NIL --) doesn''t work, though (SETPROPLIST NIL --) does

Assigned To: 

Attn: 

Status: Closed

In/By: Harmony

Problem Type: Bug

Impact: Minor

Difficulty: Easy

Frequency: Everytime

Priority: Perhaps

System: Language Support

Subsystem: Storage Formats/Mgt

Machine: 

Disk: 

Lisp Version: 

Source Files: 

Microcode Version: 

Memory Size: 

File Server: 

Server Software Version: 

Disposition: '
["Sannella" "20-Aug-84 18':44':46" Status':(Fixed->Closed) In/By':]

Description: '
Date': 15 Apr 84 13':01 PST'
From': Masinter.pa'
Subject': Lisp': /SETPROPLIST doesn''t allow you to set property list of NIL, even though SETPROPLIST does'
To': LispSupport.pa'
cc': Masinter.pa'
'
Lisp System Date': 12-Apr-84 16':45':05'
Machine': Dorado (Plaza)'
Microcode version': 24,4'
Memory size': 10000'
Frequency': Always'
Impact': Moderate'
'
The ''undoable'' versions of ALL functions must have the same effect as the non-undoable versions, otherwise it leads to GROSS confusion. The problem is that the undoable versions usually want to do the error checking BEFORE the actually do the undosave.'
'
(why, I''m not sure).'
'


Workaround: 

Test Case: 

Edit-By: Sannella

Edit-Date: 20-Aug-84 18':44':47