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Source for ticket #495
cc
changetime
2013-07-07 03:20:44
component
WG1 - Core
description
John David Stone writes:
R6RS provides libraries for hash tables and bitwise operators — very good! Its `(rnrs lists)` library standardizes the names and interfaces of some very important higher-order procedures — `for-all`, `exists`, `filter`, `fold-left`, `fold-right` — while the proposed R7RS doesn't support any of these. Of course, we teachers can always write our own libraries to support them, as apparently we're going to have to continue to do for random-number generation. My guess is that the implementers will do at least as good a job.
id
495
keywords
milestone
owner
alexshinn
priority
major
reporter
cowan
resolution
wontfix
severity
status
closed
summary
The draft lacks many important libraries
time
2013-05-12 23:31:50
type
defect
Changes
Change at time 2013-07-07 03:20:44
author
cowan
field
comment
newvalue
The WG decided by unanimous consent to take no action on this ticket.
oldvalue
2
raw-time
1373142044410382
ticket
495
time
2013-07-07 03:20:44
Change at time 2013-07-07 03:20:44
author
cowan
field
resolution
newvalue
wontfix
oldvalue
raw-time
1373142044410382
ticket
495
time
2013-07-07 03:20:44
Change at time 2013-07-07 03:20:44
author
cowan
field
status
newvalue
closed
oldvalue
new
raw-time
1373142044410382
ticket
495
time
2013-07-07 03:20:44
Change at time 2013-05-12 23:40:24
author
cowan
field
comment
newvalue
This objection ignores the existence of useful and relevant SRFIs that support these things: specifically [http://srfi.schemers.org/srfi-1/srfi-1.html SRFI 1] for lists, [http://srfi.schemers.org/srfi-33/srfi-33.html SRFI 33] and [http://srfi.schemers.org/srfi-60/srfi-60.html SRFI 60] for bitwise operations on integers (see BitwiseComparison for a comparison of both with R6RS), and [http://srfi.schemers.org/srfi-69/srfi-69.html SRFI 69] for hash tables. All of these come with highly portable implementations, though SRFI 69 is better implemented as a facade on top of native or R6RS hash tables. I will match Olin Shivers's highly bummed code for SRFIs 1 and 33 against any implementer ever born, although Alex Shinn's implementation of SRFI 1 is also worthy, given the overriding goal of his Scheme, which is compactness.
Unfortunately, what R6RS chose to standardize was filled with intentional and, to my mind, gratuitous deviations from these SRFIs, of which SRFI 1 at least is a ''de facto'' standard for Scheme programming. The large language will include at least SRFI 1 directly as a standard library, making it a ''de jure'' standard as well.
oldvalue
1
raw-time
1368376824503877
ticket
495
time
2013-05-12 23:40:24