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Source for ticket #309

cc


    
changetime

    
2012-10-07 12:48:52

    
component

    
WG1 - Core

    
description

    
Allow circular lists as the list arguments to `map` and `for-each`. If all arguments are circular, these procedures will not terminate unless the mapping procedure forces a non-local exit.  The result of `map` is not circular.  Implementations that stop when the shortest list runs out and don't make gratuitous tests shouldn't have a problem with this: R5RS allows, R6RS forbids, and R7RS requires this behavior.

    
id

    
309

    
keywords

    

    
milestone

    

    
owner

    
cowan

    
priority

    
major

    
reporter

    
cowan

    
resolution

    
fixed

    
severity

    

    
status

    
closed

    
summary

    
Allow circular lists in MAP and FOR-EACH for SRFI-1 compatibility

    
time

    
2011-12-03 02:16:03

    
type

    
defect

    
Changes

    
Change at time 2012-10-07 12:48:52

    
author

    
cowan

    
field

    
comment

    
newvalue

    

    
oldvalue

    
3

    
raw-time

    
1349588932603881

    
ticket

    
309

    
time

    
2012-10-07 12:48:52

    
Change at time 2012-10-07 12:48:52

    
author

    
cowan

    
field

    
resolution

    
newvalue

    
fixed

    
oldvalue

    

    
raw-time

    
1349588932603881

    
ticket

    
309

    
time

    
2012-10-07 12:48:52

    
Change at time 2012-10-07 12:48:52

    
author

    
cowan

    
field

    
status

    
newvalue

    
closed

    
oldvalue

    
writing

    
raw-time

    
1349588932603881

    
ticket

    
309

    
time

    
2012-10-07 12:48:52

    
Change at time 2012-04-09 03:04:51

    
author

    
cowan

    
field

    
comment

    
newvalue

    

    
oldvalue

    
2

    
raw-time

    
1333915491310362

    
ticket

    
309

    
time

    
2012-04-09 03:04:51

    
Change at time 2012-04-09 03:04:51

    
author

    
cowan

    
field

    
owner

    
newvalue

    
cowan

    
oldvalue

    
alexshinn

    
raw-time

    
1333915491310362

    
ticket

    
309

    
time

    
2012-04-09 03:04:51

    
Change at time 2012-04-09 03:04:51

    
author

    
cowan

    
field

    
status

    
newvalue

    
writing

    
oldvalue

    
decided

    
raw-time

    
1333915491310362

    
ticket

    
309

    
time

    
2012-04-09 03:04:51

    
Change at time 2012-04-05 09:21:45

    
author

    
cowan

    
field

    
comment

    
newvalue

    
The WG voted to adopt this proposal.

    
oldvalue

    
1

    
raw-time

    
1333592505233469

    
ticket

    
309

    
time

    
2012-04-05 09:21:45

    
Change at time 2012-04-05 09:21:45

    
author

    
cowan

    
field

    
status

    
newvalue

    
decided

    
oldvalue

    
new

    
raw-time

    
1333592505233469

    
ticket

    
309

    
time

    
2012-04-05 09:21:45