Number: 521

Date:  5-Apr-84 12':39':05

Submitter: Sannella.PA

Source: DEUTSCH.PA

Subject: DMPHASH prints out (PUTHASH 1 2 NOBIND)

Assigned To: 

Attn: 

Status: Closed

In/By: 

Problem Type: Bug

Impact: Moderate

Difficulty: 

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':36':43" Attn': Status':(Fixed->Closed)]

Description: '
Date':  5 APR 84 09':20 PST'
From': DEUTSCH.PA'
Subject': DMPHASH is broken'
To':   LispSupport'
'
Here is a dribble script made on Maxc just now':'
'
NIL'
3_(SETQ HH (HARRAY 20]'
{HARRAYP}#541502'
4_(PUTHASH 1 2 HH]'
2'
5_(DMPHASH HH]'
(RPAQ HH (HARRAY 23))'
(PUTHASH 1 2 NOBIND)'
NIL'
6_DRIBBLE]'
'
Note the NOBIND in the PUTHASH.'
'
P. D.'
'
-----'
'
Date': Thu, 5 Apr 84 13':33':14 PST'
From': Deutsch.pa'
Subject': AR # 521'
To': LispSupport'
In-Reply-To': "Sannella''s message of Thu, 5 Apr 84 12':40':08 PST"'
'
Examining the code for DMPHASH with EDITA makes it clear that the problem results from DMPHASH being compiled in a way that results in ARRAYNAME not being bound as a specvar, so that the free reference in the functional argument of MAPHASH doesn''t find the correct value.'
'
-----'
'
Date':  5 Apr 84 17':17 PST'
From': Masinter.pa'
Subject': AR#521'
To': LispSupport'
cc': Deutsch'
'
This is Interlisp-10 only (i.e., same script works in Interlisp-D). I''m not sure when I''m going to do my next Interlisp-10 loadup; I was actually hoping not to do any more on Maxc at all before Maxc''s decommission. Set Priority': Possibly, Attn Masinter.'
'
Workaround': use UGLYVARS and HPRINT instead of DMPHASH to save and restore hash arrays.'
'
-----'
'
Date':  6 Apr 84 14':42 PST'
From': Kaplan.pa'
Subject': Re': AR 521': DMPHASH prints out (PUTHASH 1 2 NOBIND) --addenda'
In-reply-to': LispSupport.pa''s message of 6 Apr 84 10':16':49 PST (Friday)'
To': LispSupport.pa'
'
For some reason this behavior does not show up on D, only in 10, although from the code even in D it is surprising that we haven''t seen the problem.'
'
Anyway, I fixed the code (MACHINEINDEPENDENT), and the fix will appear in 10 whenever we do another 10 loadup.'
'
Mark this as fixed.'
'
--Ron'


Workaround: 

Test Case: 

Edit-By: Sannella

Edit-Date: 20-Aug-84 18':36':44