suzanne.soy/racket
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
27,739 Commits 17 Branches 54 Tags 278 MiB
c3dcf823cb
Commit Graph

24309 Commits

Author SHA1 Message Date
Vincent St-Amour
3da04201cd Move Typed Racket-specific processing to its own file. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
96078c9da6 Don't track provenance at the log entry level. 
Not necessary anymore.
 2013-01-11 18:40:21 -05:00
Vincent St-Amour
928ea23a12 Have separate checkbox for hidden costs. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
8ffbaabfa6 Have hidden cost reporting produce report entries directly. 
Since I'm more likely to do locality than causality merging for them,
there's no reason to produce log entries instead of report entries.
 2013-01-11 18:40:21 -05:00
Vincent St-Amour
e4f3d8e73c Only show inlining reports when profiling information is available. 
Without profiling information, pruning is not good enough.
 2013-01-11 18:40:21 -05:00
Vincent St-Amour
6d7f1627b8 Have inlining reporting produce report entries directly. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
4933d9f00f Separate TR optimization and info logs. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
677550cbe2 Major refactoring. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
ebf25a3cdb Prune inlining recommendations more aggressively. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
defa1b96ff Refactoring. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
a2f1e33d00 Scale badness using profile data. 2013-01-11 18:40:21 -05:00
Vincent St-Amour
4271675f69 Report potential exact rational arithmetic in hot code. 2013-01-11 18:40:20 -05:00
Vincent St-Amour
6e9ed24eae Implement TR pruning. 2013-01-11 18:40:20 -05:00
Vincent St-Amour
9c73563705 Report struct constructors used in hot code. 2013-01-11 18:40:20 -05:00
Sam Tobin-Hochstadt
696583582b Add struct constructor table. 2013-01-11 18:40:20 -05:00
Vincent St-Amour
a474eb9838 Report hidden parameter accesses. 2013-01-11 18:40:20 -05:00
Vincent St-Amour
cc168d148d Log operations with hidden costs from TR. 
Currently only implicit parameter dereferences.
 2013-01-11 18:40:20 -05:00
Vincent St-Amour
8170eda45c Keep reports for functions that contain hot functions. 
Helps for curried functions.
 2013-01-11 18:40:20 -05:00
Vincent St-Amour
48a55f7e74 Revert "Recommend turning "hot" higher-order calls into first-order calls." 
This reverts commit bb0c20ce6eff2112a25eb1f98d394b36da0128f8.

Was never useful in practice.
 2013-01-11 18:40:20 -05:00
Vincent St-Amour
89948b2954 Recommend turning "hot" higher-order calls into first-order calls. 2013-01-11 18:40:20 -05:00
Vincent St-Amour
db6b0df526 Adjust definition of interesting call sites to not rely on inlining info. 
That information may not be available.
 2013-01-11 18:40:20 -05:00
Vincent St-Amour
bba3d66fb1 Factor out the concept of interesting callers. 2013-01-11 18:40:19 -05:00
Vincent St-Amour
c66654e9c8 Allow producing multiple inliner report entries per function. 
This also allows reporting one function while traversing another.
 2013-01-11 18:40:19 -05:00
Vincent St-Amour
fa01a5304a Recognize "interesting" call sites. 
These are call sites where one of the callees accounts for a large portion
of the total time of its caller.

When such call sites are considered inlining failures, we can refine
recommendations.

The concept of interesting call site is also useful as a building block
for higher-level patterns.
 2013-01-11 18:40:19 -05:00
Vincent St-Amour
bb9f4e4634 Report "bridgehead" inlinings as successes, even if further inlinings fail. 2013-01-11 18:40:19 -05:00
Vincent St-Amour
28d4eb4d22 Use the right version of the log to determine misses. 2013-01-11 18:40:19 -05:00
Vincent St-Amour
e02333a3c8 Fix handling of self out-of-fuel. 2013-01-11 18:40:19 -05:00
Vincent St-Amour
d1a2815197 Refactoring. 2013-01-11 18:40:19 -05:00
Vincent St-Amour
b751907e24 Keep TR and mzc logs separate. 
Simplifies post-processing.
 2013-01-11 18:40:19 -05:00
Vincent St-Amour
8ace14bad9 Refactoring. 2013-01-11 18:40:19 -05:00
Vincent St-Amour
9f415ecd8a When we have profiling information, prune inlining reports about cold code. 2013-01-11 18:40:19 -05:00
Vincent St-Amour
c8d3aea6dd Rethink profiler integration. 
Requires the program to manually call the profiler. This dumps the results in
a separate file.
 2013-01-11 18:40:18 -05:00
Vincent St-Amour
5bf52e9663 Keep profile entries that come from other files. 
Otherwise, hot function set is only populated from the current file.
 2013-01-11 18:40:18 -05:00
Vincent St-Amour
c7f8eff883 Prune profile info to only keep hot functions. 2013-01-11 18:40:18 -05:00
Vincent St-Amour
f6b60b2f90 Propagate profile information to inlining analysis. 2013-01-11 18:40:18 -05:00
Vincent St-Amour
a1c93f466c Only keep profile reports from the relevant file. 2013-01-11 18:40:18 -05:00
Vincent St-Amour
9fd9638252 Refactoring. 2013-01-11 18:40:18 -05:00
Vincent St-Amour
4c7e319cd2 Put sandbox management in its own file. 
To avoid circular dependencies.
 2013-01-11 18:40:18 -05:00
Vincent St-Amour
18e4cbbb40 First stab at hooking the profiler up to OC. 
Profiling is done from inside the eval, to minimize noise.

Use samplers directly, to get access to the profiler's data structures.
 2013-01-11 18:40:18 -05:00
Vincent St-Amour
5d4bbfaf6c Abstract out right file filtering. 2013-01-11 18:40:17 -05:00
Vincent St-Amour
a65d7532f2 Log output generated when OC expands/runs programs. 
To be consistent with Check Syntax.
 2013-01-11 18:40:17 -05:00
Vincent St-Amour
fa2cba1c5b Abstract out OC sandboxing. 2013-01-11 18:40:17 -05:00
Sam Tobin-Hochstadt
1a678bd5de Fix parsing of maybe-optimize result. 
Merge to 5.3.2.
 2013-01-11 18:15:53 -05:00
Sam Tobin-Hochstadt
2a1f70264c Fix XREPL logging printer to handle new logger name field. 
Merge to 5.3.2.
 2013-01-11 18:15:34 -05:00
Ryan Culpepper
9b1b15d110 fix missing argument 
closes PR 13429

Merge to 5.3.2
 2013-01-11 16:14:58 -05:00
Danny Yoo
69ae77a253 Gracefully handle the case where the token stream just contains the END token and an error occurs. 2013-01-11 14:00:24 -07:00
Jay McCarthy
3312a8064d Working with links in collection testing 2013-01-10 10:45:54 -07:00
Tobias Hammer
0f6a5833fc readline/readline: add readline-newline' and readline-redisplay' 
mzrl.rkt:
  Add and provide readline-newline and readline-readisplay.

readline.scrbl:
  Documentation and example code.
 2013-01-09 19:12:22 -07:00
Matthew Flatt
5134bc0888 scribble doc corrections 
Merge to v5.3.2
 2013-01-09 18:52:16 -07:00
Matthew Flatt
5ab048bb5c scribble/decode: fix contract on `decode-compound-paragraph' 
Add a test suite that at least tries each export of `scribble/decode'.

Merge to v5.3.2
 2013-01-09 18:52:16 -07:00
Greg Hendershott
4d3a5bad04 Use Racket lexer for code blocks. 
Had been specifying Scheme lexer for code blocks, while waiting for
new Racket lexer to wend its way from Pygments to Pygments.rb to
Linguist to GitHub.

That day is almost here: Linguist will soon update and deploy to
GitHub.  And Racket 5.3.2 is about to release.  As a result, I think
this is the correct time to switch to the Racket lexer: It should be
live on GitHub by the time people are using Racket 5.3.2.

/cc @rmculpepper -- I think this commit should go into the 5.3.2
release.
 2013-01-09 18:52:16 -07:00
Asumu Takikawa
c5c6280d87 Change exception predicate for a test 
For some reason, the other predicate breaks on some
test setups, even though it usually succeeds.

Please merge to 5.3.2
 2013-01-09 18:12:45 -05:00
Asumu Takikawa
f577b49a4d Fix polydots 
- parsing of polydots values was fixed
 - certain polydots error cases are now reported
 - the custom application rule for values was fixed

Closes PR 13365

Please merge to 5.3.2
 2013-01-09 18:12:45 -05:00
Neil Toronto
441ad6eff4 MPFR custodian shutdown procedure tries to clear the constants cache 
even when MPFR isn't loaded; this should close PR 13423
 2013-01-09 11:21:58 -07:00
Danny Yoo
6e21e34ec7 Correct location calculations for non-terminals. 
The prior code constructed the location of nonterminal maches out of
the the state of the stream after parsing.  This isn't right for a few
reasons:

    1.  It doesn't get starting location correctly.

    2.  It doesn't behave when the non-terminal production did not
        actually consume tokens for its parse.

This patch modifies the parsers to also pass along a
"last-consumed-token"; it, along with a few other changes, provides
the parsers enough information to accurately construct the locations,
even when no tokens have been consumed during the parse.  We
synthesize a sentinel last-consumed-token token to take location from
the head of the stream.
 2013-01-09 10:46:18 -07:00
Jay McCarthy
9015c15eec test - Supporting packages in raco test 2013-01-09 08:12:56 -07:00
Jay McCarthy
3e0fff7dff Extending raco test to work on collections 2013-01-09 07:59:47 -07:00
Jay McCarthy
7cddc64e5a pkg - Improving error message on bad github urls 2013-01-09 07:34:56 -07:00
Jay McCarthy
f3a3c64720 pkg - Adding explanation of github supporting tags 2013-01-09 07:34:35 -07:00
Jay McCarthy
9d4e47a96e Update URLs again to r-l.o domain 2013-01-09 06:31:02 -07:00
Eli Barzilay
79b9acd444 2012 -> 2013 2013-01-09 01:17:26 -05:00
Asumu Takikawa
83766e1b11 Doc fix 
Closes PR 13420

Please merge into 5.3.2
 2013-01-08 19:45:15 -05:00
Asumu Takikawa
27d3042ad6 Use correct contract for Procedure type 
The only problem with this contract is that it does
not produce a very good error message
 2013-01-08 20:03:16 -05:00
Matthew Flatt
3e8b6b9866 scribble: add +m' / ++main-xref-in' flag 
The `+m' flag is a long-overdue shorthand for `++xref-in setup/xref
load-collections-xref', which links to installed documentation in
the same way as DrRacket's "Scribble HTML" button.

That is, use `+m' to link to installed documentation,

  scribble +m mine.scrbl

instead of the previously recommended

  scribble ++xref-in setup/xref load-collections-xref mine.scrbl

Merge to 5.3.2
 2013-01-08 16:25:28 -07:00
Asumu Takikawa
9c0a611b59 Disallow duplicate type variable declarations 
Closes PR 13416

Please merge to 5.3.2
 2013-01-08 14:50:08 -05:00
Jay McCarthy
b0f3f03412 Removing exotic ports for PNRs 2013-01-08 07:42:51 -07:00
Robby Findler
3e3283aeba adjust drracket so check syntax can add its preferences itself 
closes PR 13419
 2013-01-08 01:01:40 -06:00
Ryan Culpepper
929f37df62 fix db test script 2013-01-07 19:52:51 -05:00
Ryan Culpepper
c0543e8f65 updated docs for new simple-result info 
Most changes are due to unrelated serialization improvements,
but there's one example with a different result.
 2013-01-07 19:52:51 -05:00
Ryan Culpepper
681558328e add last inserted row, # changes to simple-result info 
The info keys are 'insert-id, 'affected-rows, as for mysql.
 2013-01-07 19:52:51 -05:00
Ryan Culpepper
a6f03ee38f use popcount table 2013-01-07 19:52:51 -05:00
Ryan Culpepper
139c0ca6c7 improve popcount 2013-01-07 19:52:51 -05:00
Vincent St-Amour
057a2bd0d2 Extend type of min to preserve fixnumness. 2013-01-07 17:00:32 -05:00
Robby Findler
6b681f04c4 add planet2 info to the bug report system 2013-01-07 11:04:24 -06:00
Robby Findler
84c0208d99 add check for number of result values in ->i (that signals blame) 
closes PR 13417
 2013-01-07 11:04:24 -06:00
Jay McCarthy
b02d8af305 Fixing PR13409 2013-01-07 08:27:26 -07:00
Asumu Takikawa
5e78aa7d9e Add examples & slight fix for stxparam docs 2013-01-06 16:26:02 -05:00
Asumu Takikawa
470a8c8892 Minor rewording 2013-01-06 16:26:02 -05:00
Robby Findler
4e95220d97 speed up tab switching 
I belive this should only be noticeable at the human timescale level
when the tabs have been switched to already and, in that case, seems
to go from 3-400 msec to 50-60 msec on my machine

Essentially all of that time is in redrawing the buffer, so that 50-60
msec is proportional to the height of the DrRacket window, roughly.

(The commit just makes drracket do a single redraw instead of about 4
or so of them per switch ...)
 2013-01-06 19:48:14 -06:00
Robby Findler
0b332a1761 add deprecation notice to mrlib/cache-image-snip 2013-01-06 19:48:14 -06:00
Matthew Flatt
05837fac1b planet2: installation-wide config of default `raco pkg' scope 
With either
  configure --enable-pkgscope=installation
or
  raco pkg config -i --set default-scope installation
the default scope of `raco pkg' actions can be changed from
user-specific to installation-wide.

We considered trying to guess when someone building Racket would prefer
installation-wide package scope by default. In particular, someone
building from source for in-place use seems likely to want
installation-wide scope by default. Then again, we don't want to
discourage in-place builds for Unix installations that are intended
for multiple users. So, no guessing for now.

Also, add a `--scope' argument to `raco pkg' commands, which is more in
line with other options, but keep `-i', etc., as shorthands.
 2013-01-06 11:17:22 -07:00
Robby Findler
dd161bb821 allow multiple string constants to be in a single "line" 
also enforce some spacing requirements to avoid the problem
where you forget to put a space in a message that is broken
across string constants.
 2013-01-05 20:25:06 -06:00
Robby Findler
4f22b3b680 fix traditional/simplified initial choice 2013-01-05 19:46:57 -06:00
Robby Findler
12d670b5a3 add missing inner call 2013-01-05 17:31:07 -06:00
Robby Findler
c907368e0f try to make the colorer more friendly when there is an unclosed 
edit sequence

(ie make it not take over the cpu)
 2013-01-05 17:31:07 -06:00
Matthias Felleisen
510e74fa1c added stdin and stdout as alternatives 2013-01-05 14:35:30 -05:00
Matthias Felleisen
f78e4c7142 added defthing as a doc feature; Closes PR13414 2013-01-05 14:35:30 -05:00
Robby Findler
23fec98cbb move a literal string that should be translated into the string-constants library 2013-01-05 12:22:37 -06:00
Robby Findler
cce6f28d4d remove 'create executable' functionality from drracket for all 
langauges except The Racket Language and the HtDP and DMdA languages
 2013-01-05 12:19:26 -06:00
Robby Findler
89373c7850 re-enable autosave only if a save is successful, not just attempted 
when combined with 94b54db118,
closes PR 13359
 2013-01-05 11:35:13 -06:00
Robby Findler
0c76c692ac guard call to file-or-directory-permissions 
related to PR 13359
also, Rackety
 2013-01-05 11:35:13 -06:00
Matthew Flatt
e66cd6f9c7 raco exe: yet another submodule repair 
Closes PR 13410
 2013-01-05 09:12:47 -07:00
Matthew Flatt
a496404411 setup/configtab: prevent cross-module inlining of configuration 
The intent is that the configuration module can be rewritten without
recompiling code that uses it, so don't let the compiler inline
configuration values.
 2013-01-05 07:33:41 -07:00
Robby Findler
d228790ed9 change chat noir so that 'h' toggles help 
(instead of requiring it to be pressed down all
the time, as that generates lots of extra events)
 2013-01-04 21:39:11 -06:00
Robby Findler
87d25ba02a adjust scribble/lp language so drracket syntax colors it properly 
Also fix a spelling mistake (now that spell checking works) and Rackety
 2013-01-04 21:39:11 -06:00
Matthias Felleisen
69800aa580 batch io functions now accept 'standard-[in,out] in lieu of file name 2013-01-04 19:06:13 -05:00
Robby Findler
d53d3c3528 try to make this test's timing better behaved 2013-01-04 16:59:00 -06:00
Matthew Flatt
cd73a8b02a math/matrix: fix some duplicate documentation tags 2013-01-04 08:12:47 -07:00
Matthew Flatt
67f0af387b fix problems with single-flonum (versus flonum) results 
The problems were with

 * `sqrt' and `expt' on single-flonum complex numbers
 * `asin' and `acos' on single-flonum arguments and complex results
 * `atan' on mixtures of single-flonum and exact arguments
 * `gcd' on mixtures of single-flonum and flonum arguments
 2013-01-04 08:00:24 -07:00
Jay McCarthy
c07ff948ee Fixes PR13406 2013-01-04 05:45:05 -07:00
Robby Findler
aa5f2e7875 adjust the framework to avoid 
calling the error-display-handler when reporting
problems saving files

closes PR 13403
 2013-01-03 20:47:19 -06:00
Robby Findler
94b54db118 clean up autosave a little 
guard more of the filesystem manipulations with
handlers and log errors instead of letting them
be raised and show up as internal errors

related to PR 13403
 2013-01-03 20:47:17 -06:00
Jens Axel Søgaard
69d7cb2e82 More matrix documentation 2013-01-03 18:03:28 +01:00
Robby Findler
12a288f135 add a checkbox to disable online expansion in the preferences dialog 
(it controls the same state as clicking in the circle in
the bottom right corner of the drracket window)
 2013-01-03 11:00:23 -06:00
Matthew Flatt
42c77d6290 planet2 docs: move and tweak expanation of package-library `require' 2013-01-03 07:34:33 -07:00
Matthew Flatt
e98c308e66 bundle script: fixes for "README" munging 2013-01-03 07:04:29 -07:00
Asumu Takikawa
3885ea7cdd Fix doc typos 2013-01-03 02:27:30 -05:00
Matthias Felleisen
1b07cb4ff9 fixed a @file-is mistake, race? 2013-01-02 18:32:35 -05:00
John Clements
5a4098ffec added docs on requiring planet2 modules 2013-01-02 14:23:42 -08:00
Vincent St-Amour
81cccb4c8f Fix fixnum comparisons to prove more bounds. 2013-01-02 16:55:28 -05:00
Jens Axel Søgaard
9465bc0196 Documentation for inner product space operations 2013-01-02 22:44:39 +01:00
Neil Toronto
cfa9bd9a81 Exported `matrix-basis-cos-angle' with a contractable type 2013-01-02 13:20:42 -07:00
Jens Axel Søgaard
69406bf156 Documentation on basic matrix operations and matrix-qr. 2013-01-02 19:28:05 +01:00
Vincent St-Amour
18389532e7 Move define-inline to racket/performance-hint. 
Move begin-encourage-inline to racket/private for dependencies.
 2013-01-02 12:18:36 -05:00
Jens Axel Søgaard
715b0a7be7 Documentation for polymorphic matrix functions 2013-01-02 18:02:03 +01:00
Robby Findler
ad579d07d6 put the racket version number in the title bar for the splash screen 2013-01-02 10:19:38 -06:00
Matthew Flatt
43e01d7f4e rename test file 
":" is not allowed in a file name on Windows.
 2013-01-02 06:33:10 -07:00
Robby Findler
836ce95343 added section on alpha blending to 2htdp/image guide 2013-01-01 23:13:13 -06:00
Robby Findler
0d0503bda7 adjust sync pattern to avoid cross-thread set! 2013-01-01 23:13:13 -06:00
Robby Findler
0f26aafd1f Adjust DrRacket to not use on-demand to populate the 
teachpack menu.

Instead DrRacket explicitly changes the menu items when
the language changes or when a teachpack is added/removed

Also, Rackety.

Closes PR 13395
 2013-01-01 23:13:00 -06:00
Neil Toronto
e5eb9751f0 Initial `math/matrix' documentation, and some changes 
* At least stubbed out all (or almost all) `math/matrix' exports; many
  have complete documentation (e.g. types, predicates, accessors,
  constructors, for loops, conversion, much of "Comparing Matrices")

* Moved `matrix-zero?' and fixed to use (matrix-error-norm) as its norm

* Added `matrix-basis-cos-angle' (currently a stub; should return smallest
  singular value of a certain matrix multiplication)
 2013-01-01 18:19:43 -07:00
Neil Toronto
5981535686 Made Gaussian elimination faster (half the scaled additions) and more 
accurate (always produces zeros in the lower half)
 2013-01-01 18:19:43 -07:00
Matthew Flatt
3c5135fc7a `expt' repair, again 
Previous repair wasn't general enough; negative powers can also
go wrong.
 2013-01-01 18:05:37 -07:00
Vincent St-Amour
678451f8c4 Fix tests. 2013-01-01 18:14:52 -05:00
Vincent St-Amour
4137eb9e73 Make let: annotations optional. 2013-01-01 18:14:52 -05:00
Matthew Flatt
1f8370d2d6 revise README and "Getting Started" info 
Addresses PR 13356
 2013-01-01 15:55:44 -07:00
Matthew Flatt
b67ca6350c fix doc typo 
Closes PR 13353
 2013-01-01 15:55:44 -07:00
Matthew Flatt
55f98a15d4 racket/gui gtk: make `on-demand' for menus work better 
There appears to be no way to make `on-demand' work right for the
Unity window manager's global menu bar, since there's no notificiation
when the menu bar is clicked. We approximate the correct behavior
by calling `on-demand' when a containing frame loses the keyboard
focus, which might be because the menu bar was clicked; that may be
too late (because the menu has already been shown), but it should
work most of the time.

Closes PR 13347.

Relevant to PR 13395, but DrRacket will have to change to work
around the remaining limitations of `on-demand'.
 2013-01-01 15:55:36 -07:00
Robby Findler
0e763f5b01 check the result of find-ls in the one place it wasn't being checked 
probably closes 13404
 2013-01-01 15:01:13 -06:00
Matthew Flatt
07d5a9e385 fix `expt' on small negative number and large positive odd 
The pow() function apparently gets it wrong on some platforms.

Closes PR 13391
 2013-01-01 12:33:59 -07:00
Robby Findler
974350472c whoops, fix a bug introduced in 0f9674e1dd 2013-01-01 13:12:34 -06:00
Neil Toronto
c29c4056a1 Added back partial pivoting to Gaussian elimination 2013-01-01 12:12:07 -07:00
Robby Findler
0f9674e1dd adjust drracket window size and position preferences to use a different key 
This will make switching back and forth between 5.1.3 and the latest
not lose the frame size and position preferences (since the format
of the data is different now that the current release remembers
the position on a per-monitor-configuration basis)
 2013-01-01 11:26:05 -06:00
Robby Findler
0f64a0ae0d fix handin server error on bad password 2013-01-01 10:58:11 -06:00
Danny Yoo
c70f7d2ed2 Disambiguate sentence on custodian shutdown. 
See:
http://lists.racket-lang.org/dev/archive/2012-December/011373.html

Motivated by Sgeo's question in:
http://racket-lang.org/irc-logs/20121229.txt at 22:10.
 2013-01-01 00:48:50 -08:00
Matthew Flatt
8e8cc301e4 fix dist spec 2012-12-31 17:29:45 -07:00
Neil Toronto
c8e3b45e38 Added QR decomposition tests (mostly a pretty thorough randomized test); 
fixed error in `matrix-cols-orthogonal?' revealed by testing
 2012-12-31 15:20:25 -07:00
Neil Toronto
f5fa93572d Moar `math/matrix' review/refactoring 
* Gram-Schmidt using vector type

* QR decomposition

* Operator 1-norm and maximum norm; stub for 2-norm and angle between
  subspaces (`matrix-basis-angle')

* `matrix-absolute-error' and `matrix-relative-error'; also predicates
  based on them, such as `matrix-identity?'

* Lots of shuffling code about

* Types that can have contracts, and an exhaustive test to make sure
  every value exported by `math/matrix' has a contract when used in
  untyped code

* Some more tests (still needs some)
 2012-12-31 14:17:17 -07:00
Neil Toronto
e06f31c94e More precise return type for `magnitude' (it always returns nonnegative) 2012-12-31 14:17:17 -07:00
Matthew Flatt
cdfc4912ad racket/base: add exn:fail:filesystem:errno and exn:fail:network:errno 
Provide raw error codes when available, which is mostly from filesystem
and networking primitives.
 2012-12-31 12:04:03 -07:00
Robby Findler
a948f1b40d fix commit c818eb3ca3 
related to PR 13394
 2012-12-31 11:52:36 -06:00
Robby Findler
2a83c2147c add some color to the image guide's fractals 
and use local instead of internal define to
be more HtDP friendly
 2012-12-31 11:42:33 -06:00
Robby Findler
8f300b9e73 add rotary dial to the image guide 2012-12-31 10:29:28 -06:00
Sam Tobin-Hochstadt
0d01db8543 Fix type of log-message. 2012-12-30 22:14:44 -05:00
Robby Findler
9b6272674e tweak the latex rendering of ╔ and company 2012-12-30 21:11:38 -06:00
Matthew Flatt
8b7379a7ad docs: clarification for `immutable?' 2012-12-30 20:30:20 -06:00
Matthias Felleisen
ede0e3c625 at JPR's request: modified memq to return boolean and added memq? to teaching languages 
the symmetry to member/member? suggested he is correct
 2012-12-30 14:38:32 -05:00
Asumu Takikawa
4041e3c841 Fix sandbox doc example 2012-12-30 01:55:44 -05:00
Robby Findler
c818eb3ca3 Fix the new lexer interaction when some of the lexer states were 
finished, but not all. Don't re-do them the next time around

closes PR 13394
 2012-12-29 23:56:38 -06:00
Robby Findler
022e252f45 add support for ╔ ═ ╗ ║ ╚ and ╝ to the latex renderer 
Also, Rackety
 2012-12-29 11:31:17 -06:00