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3557 Commits

Author SHA1 Message Date
Kai Backman 494bcc80e4 stop the 5c optimizer from clobbering extern static registers. 
R=rsc, ken2
CC=golang-dev
https://golang.org/cl/204064
 2010-02-10 22:42:05 -08:00
Russ Cox 22a7f2a14d runtime: delete MHeapMapCache, which is useless 
because free needs to mark the block as freed to
coordinate with the garbage collector.

(in C++ free can blindly put the block on the free list,
no questions asked, so the cache saves some work.)

R=iant
CC=golang-dev
https://golang.org/cl/206069
 2010-02-10 21:23:08 -08:00
Nigel Tao fc8e3d4004 exp/draw test. 
R=rsc
CC=golang-dev
https://golang.org/cl/203062
 2010-02-11 13:38:16 +11:00
Petar Maymounkov c27c3aa6d8 Added tests for http.Request/Response.Write() 
R=rsc
CC=golang-dev
https://golang.org/cl/199070
 2010-02-10 17:29:03 -08:00
Russ Cox c312d0e0ca net: use slightly less predictable dns request id 
not trying to be secure, just not repetitive
(sending with the same id repeatedly makes
some resolvers stop replying.)

eventually we'll replace this with linking against
the system's native resolver.

R=p
CC=golang-dev
https://golang.org/cl/207051
 2010-02-10 16:35:35 -08:00
Russ Cox 66cdc699b2 arm: fix build on android 
R=kaib
CC=golang-dev
https://golang.org/cl/206059
 2010-02-10 15:01:02 -08:00
Russ Cox fb94be55dc runtime: tighten garbage collector 
* specialize sweepspan as sweepspan0 and sweepspan1.
 * in sweepspan1, inline "free" to avoid expensive mlookup.

R=iant
CC=golang-dev
https://golang.org/cl/206060
 2010-02-10 14:59:39 -08:00
Russ Cox 991a968f44 runtime: do not zero blocks on free (this time for sure!) 
R=iant
CC=golang-dev
https://golang.org/cl/207054
 2010-02-10 11:31:00 -08:00
Alex Brainman 3b1a71862e 8l: pe executable building code changed to include import table for kernel32.dll functions 
Fixes #586.

R=rsc
CC=golang-dev
https://golang.org/cl/203060
 2010-02-10 00:47:52 -08:00
Russ Cox 1ca39fb1fd gc: fix mkopnames and color grep interaction 
Fixes #406.

R=adg
CC=golang-dev
https://golang.org/cl/207053
 2010-02-10 00:44:43 -08:00
Russ Cox f9f66b97e2 ld: unused variable 
R=adg
CC=golang-dev
https://golang.org/cl/207050
 2010-02-10 00:44:22 -08:00
Charles L. Dorian aee1434193 math: add Exp2; 386 FPU versions of Exp2 and Log1p 
Added tests and benchmarks for Exp2 (special cases same
as Exp). Log1p also enhances speed of inverse hyperbolics.

R=rsc
CC=golang-dev
https://golang.org/cl/206058
 2010-02-10 00:06:41 -08:00
Russ Cox f25586a306 runtime: garbage collection + malloc performance 
* add bit tracking finalizer status, avoiding getfinalizer lookup
  * add ability to allocate uncleared memory

R=iant
CC=golang-dev
https://golang.org/cl/207044
 2010-02-10 00:00:12 -08:00
Michael Hoisie 0cba5fc051 mime: new package, use in http 
R=rsc
CC=golang-dev
https://golang.org/cl/186160
 2010-02-09 20:47:45 -08:00
Petar Maymounkov c5287ecb9c http: protect io.WriteString in Request/Response.Write with error checking, 
since they were causing a silent program exit (too many EPIPE's).

R=rsc
CC=golang-dev
https://golang.org/cl/204062
 2010-02-09 17:42:51 -08:00
Ken Thompson d4ad8e8ce3 bug fix in 6c/8c/5c mis-aligned 
function arguments.

R=rsc
CC=golang-dev
https://golang.org/cl/206054
 2010-02-09 17:26:04 -08:00
Russ Cox 2b4a9fa176 fix NaCl build for latest runtime changes 
R=iant
CC=golang-dev
https://golang.org/cl/206052
 2010-02-09 16:56:22 -08:00
Russ Cox de90a7d4aa runtime: fix FreeBSD build 
stab in the dark but plausible: the kernel does try to
return time zone information.
http://fxr.watson.org/fxr/source/kern/kern_time.c?v=FREEBSD8#L421

R=iant
CC=golang-dev
https://golang.org/cl/206053
 2010-02-09 16:54:51 -08:00
Charles L. Dorian c465331262 math: add functions Log2, Nextafter, Fdim, Fmax, Fmin 
Add functions, tests and benchmarks. Fix typos in comments
in expm1 and hypot_386.  Fix Acosh domain error in benchmark
test.

R=rsc
CC=golang-dev
https://golang.org/cl/204069
 2010-02-09 13:33:12 -08:00
Evan Shaw baea3e946d 8a/8l: Added CMOVcc instructions 
R=rsc
CC=golang-dev
https://golang.org/cl/204067
 2010-02-09 13:33:07 -08:00
Russ Cox d3be2e3e0a add simple garbage collector benchmarks to dashboard 
R=agl1
CC=golang-dev
https://golang.org/cl/207043
 2010-02-09 13:33:00 -08:00
Fazlul Shahriar 96476b4c3e make units compile 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/206044
 2010-02-09 13:20:22 -08:00
Russ Cox 62d627f0bc runtime: allow arbitrary return type in SetFinalizer. 
finalize chan, to free OS X semaphore inside Lock.
os: finalize File, to close fd.

Fixes #503.

R=ken2
CC=golang-dev
https://golang.org/cl/204065
 2010-02-08 21:41:54 -08:00
Russ Cox 9e2c9bb0ca gc: fix method expression bug 
R=ken2
CC=golang-dev
https://golang.org/cl/206043
 2010-02-08 21:40:35 -08:00
Russ Cox e4f06812c5 runtime: instrument malloc + garbage collector. 
add simple garbage collection benchmark.

R=iant
CC=golang-dev
https://golang.org/cl/204053
 2010-02-08 14:32:22 -08:00
Andrew Gerrand b4fb00b69b *l/*c: add -V flag to display version number 
R=rsc
CC=golang-dev
https://golang.org/cl/204044
 2010-02-08 09:46:53 -08:00
Evan Shaw abe6a5b0f7 testing: Fix comment typo 
R=iant, rsc
CC=golang-dev
https://golang.org/cl/204068
 2010-02-07 23:11:54 -08:00
Adam Langley d5841cac45 encoding/pem: add marshalling support. 
R=rsc
CC=golang-dev
https://golang.org/cl/203043
 2010-02-07 15:22:36 -05:00
Russ Cox 87915b6565 runtime: introduce MemStatsType 
R=ken2
CC=golang-dev
https://golang.org/cl/204061
 2010-02-07 01:20:44 -08:00
Kai Backman ebf32c5868 fix comment 
R=rsc
CC=golang-dev
https://golang.org/cl/203053
 2010-02-06 21:59:46 -08:00
Nigel Tao 48cdb63baa draw.Draw fast paths for a nil mask (and RGBA dst). 
Averaged times (in microseconds) for drawing an 800x600 rectangle
are listed below. The summary is: around a 100x improvement.

draw.Draw call times were typically linear in the number of pixels
touched (i.e. drawing an 800x600 rectangle took 100x as much time as
drawing an 80x60 rectangle).

Before this change, there was only the general-but-slow code path.
When drawing any src with a 50%-opaque mask: 237300 us
When drawing any src with a nil mask: 50100 us

After this change, the 50%-opaque mask case is unchanged.
For an *image.RGBA dst and nil mask and...
...a uniform color (i.e. an image.ColorImage) src: 282 us
...another *image.RGBA src: 615 us.

For the curious, an intermediate implementation detected the special
cases but used simple nested for loops instead of the built-in copy
function. The respective times (compared to 282 and 615 for the
final implementation, or 50100 for the original) were 3110 and 3573.

Times were measured with 8g/8l on my laptop. I haven't tried gccgo
or other architectures.

R=r, rsc
CC=golang-dev
https://golang.org/cl/201048
 2010-02-06 15:57:19 +11:00
Petar Maymounkov 4fdab85178 http: sort header keys when writing Response or Request to wire 
R=rsc
CC=golang-dev
https://golang.org/cl/203050
 2010-02-05 18:32:02 -08:00
Ken Thompson ce85868a00 bug in const float divide 
R=rsc
CC=golang-dev
https://golang.org/cl/204042
 2010-02-05 15:18:32 -08:00
Charles L. Dorian 072b560ee6 math: Atan2 special cases and tests; atan2_386 
Added special cases, tests and benchmarks for Atan2;
added 386 FPU version of Atan2.

R=rsc
CC=golang-dev
https://golang.org/cl/201068
 2010-02-05 14:55:19 -08:00
Rob Pike cd2ecfb7b3 Ugly hack to provide some mechanism for printing documentation about 
Go source outside $GOROOT.

If the argument is a path starting with / or ., disregard $GOROOT.
Also, disable the check for package name matching the directory,
which is counterproductive in this case.

Apologies for the violence to the code but we need some help documenting
Go code outside the standard repository.

R=gri
CC=golang-dev
https://golang.org/cl/201064
 2010-02-06 08:53:46 +11:00
Adam Langley 95e08bde44 asn1: Fixes and additions to marshalling 
Marshalling:
* Fixes several silly bugs.
* Support the RawContents type.
* Support the RawValue type.
* Recurse into nested interface{}.

Both directions:
* Better handling of SETs. You can now tag an element in a
  structure with "set" to get the correct tag for serialisation.
* For types that aren't in a structure, you can now name them
  with "SET" on the end.
* SETs are no longer implicitly treated as SEQUENCEs.

R=rsc
CC=golang-dev
https://golang.org/cl/201049
 2010-02-05 05:42:02 -05:00
Adam Langley 5d827fac39 crypto/tls: typo fix 
R=rsc
CC=golang-dev
https://golang.org/cl/201047
 2010-02-05 05:39:49 -05:00
Stephen Weinberg bc43cc3db0 path: make Join variadic 
R=rsc, r
CC=golang-dev
https://golang.org/cl/198049
 2010-02-05 02:39:33 -08:00
Dean Prichard 0e47c75f60 5a/6a/8a/5c/6c/8c: remove fixed-size arrays for -I and -D options 
R=rsc
CC=golang-dev
https://golang.org/cl/198044
 2010-02-05 01:40:58 -08:00
Charles L. Dorian 04217ee54e math: special cases for Modf, Frexp and Ldexp; added Modf_386 
Also moved Modf from bits.go into modf.go and added timing tests.

R=rsc
CC=golang-dev
https://golang.org/cl/202042
 2010-02-05 00:41:30 -08:00
Rob Pike 2d7dc0e70c handle nils safely in Printf. 
add some tests for erroneous formats.

R=rsc
CC=golang-dev
https://golang.org/cl/201058
 2010-02-05 11:23:25 +11:00
Joe Poirier 987e1198db Added mingw specific build stubs. 
R=rsc
CC=golang-dev
https://golang.org/cl/198071
 2010-02-04 13:09:09 -08:00
Christopher Wedgwood 1e66428d59 time: Sleep through interruptions 
R=rsc
CC=golang-dev
https://golang.org/cl/202043
 2010-02-04 13:09:02 -08:00
Christopher Wedgwood b655fa8d1d FreeBSD: Kill only takes pid & signal 
Cosmetic fix.  The FreeBSD system call only takes two
arguments.

http://fxr.watson.org/fxr/source/kern/kern_sig.c?im=bigexcerpts#L1678

R=dho, rsc
CC=golang-dev
https://golang.org/cl/202051
 2010-02-04 13:08:54 -08:00
Andrew Gerrand 8ec9ffc742 6l: move mapped symbol table lower in memory 
Allows binary to run on some Linux system.

Fix for issue 365.

R=rsc
CC=golang-dev
https://golang.org/cl/199096
 2010-02-04 12:46:11 -08:00
Nigel Tao 4e2035bdc2 In draw.Draw, separate the source-point and mask-point. 
This lets you draw text (i.e. with mask = a font image) with
sources that aren't uniform colors.

R=r, rsc
CC=golang-dev
https://golang.org/cl/193067
 2010-02-04 21:21:32 +11:00
Russ Cox f2317d3ec1 syscall: on freebsd, darwin, give Kill same signature as on linux 
R=r, cw
CC=golang-dev
https://golang.org/cl/201043
 2010-02-04 02:06:08 -08:00
Nigel Tao ea344e123a Add named colors (e.g. image.Blue), suitable for exp/draw. 
R=r, rsc
CC=golang-dev
https://golang.org/cl/198066
 2010-02-04 20:25:37 +11:00
Petar Maymounkov 15da069a37 http: use ChunkWriter in Request.Write 
R=rsc
CC=golang-dev
https://golang.org/cl/196079
 2010-02-04 00:23:01 -08:00
Christopher Wedgwood 43d2e59a81 os/signal: send SIGCHLDs to Incoming 
R=rsc
CC=golang-dev
https://golang.org/cl/199082
 2010-02-03 23:24:28 -08:00
Kai Backman 2f1a321d4f search for runtime.a in the package path instead of hardcoding 
the location. remove last remnants of broken -l flag.

R=rsc
CC=golang-dev
https://golang.org/cl/201042
 2010-02-03 22:31:38 -08:00
Russ Cox c2cb0d70d5 arm: toss make-arm.bash 
R=kaib
CC=golang-dev
https://golang.org/cl/199094
 2010-02-03 20:46:37 -08:00
Rob Pike 2bcca5d951 Add RFC822 formats as named constants. 
Make sure to print a time zone when formatting even if none is defined.
Add a comment introducing lookupTimezone (not lookupTimeZone).

Fixes isse 577.

R=rsc
CC=golang-dev
https://golang.org/cl/196090
 2010-02-04 15:39:27 +11:00
Russ Cox 3a295ab704 debug/gosym: fix test for new 6l 
TBR=r
CC=golang-dev
https://golang.org/cl/199091
 2010-02-03 16:53:19 -08:00
Russ Cox 33e396a4a7 finalizers; merge package malloc into package runtime 
R=r, cw
CC=golang-dev
https://golang.org/cl/198085
 2010-02-03 16:31:34 -08:00
Russ Cox 00f4c6a1b5 ld: include main and runtime in the library loop 
Fixes #585.

R=r
CC=golang-dev
https://golang.org/cl/195075
 2010-02-03 16:30:45 -08:00
Andrey Mirtchovski 4a9a0056c1 sort: fix comment typo 
R=rsc
CC=golang-dev
https://golang.org/cl/198084
 2010-02-02 23:01:21 -08:00
Russ Cox 8b8c103b2b fix build - misc ... vs ...T fixes 
TBR=r
CC=golang-dev
https://golang.org/cl/198081
 2010-02-02 18:19:27 -08:00
Russ Cox 8bef7fdc39 bug252: make ... vs ...T crossing an error, at least for now 
R=r
CC=golang-dev
https://golang.org/cl/199066
 2010-02-02 15:00:13 -08:00
Russ Cox 44898c7b76 gc: bug250, bug251 - recursive interface types 
Fixes #287.

R=ken2
CC=golang-dev
https://golang.org/cl/199057
 2010-02-01 23:58:49 -08:00
Nigel Tao a3372bd655 New image.A type, to represent anti-aliased font glyphs. 
R=r, rsc
CC=golang-dev
https://golang.org/cl/199052
 2010-02-02 18:38:04 +11:00
Russ Cox 674458e1c4 gc: bug246 
R=ken2
CC=golang-dev
https://golang.org/cl/198057
 2010-02-01 23:05:15 -08:00
Russ Cox b13b80e555 math: change Cosh test to close, not veryclose (needed on some x86 chips) 
R=r
CC=Charlie Dorian, golang-dev
https://golang.org/cl/199054
 2010-02-01 22:46:37 -08:00
Charles L. Dorian a0690b69da math: add functions; update tests and special cases 
Added special cases to comments for asin.go and fabs.go.
Added Trunc() to floor.go and floor_386.s.  Fixed formatting
error in hypot_386.s  Added new functions Acosh, Asinh,
Atanh, Copysign, Erf, Erfc, Expm1, and Log1p.  Added
386 FPU version of Fmod.  Added tests, benchmarks, and
precision to expected results in all_test.go.  Edited
makefile so it all compiles.

R=rsc
CC=golang-dev
https://golang.org/cl/195052
 2010-02-01 22:21:40 -08:00
Russ Cox 0bd41e2ff0 gc: bug242 
R=ken2
CC=golang-dev
https://golang.org/cl/198053
 2010-02-01 22:18:51 -08:00
Robert Griesemer 75187e5ca3 update printer tests to use new syntax 
R=rsc
CC=golang-dev
https://golang.org/cl/198048
 2010-02-01 17:51:55 -08:00
Russ Cox 2a5d30fbe7 io: revised Pipe implementation 
* renamed channels to say what gets sent
* use channel closed status instead of racy check of boolean

R=nigeltao_golang
CC=golang-dev
https://golang.org/cl/196065
 2010-02-01 17:43:15 -08:00
Rob Pike 5db5f68d96 allow any scalar type in xml.Unmarshal. 
Fixes #574.

R=rsc
CC=golang-dev
https://golang.org/cl/196056
 2010-02-02 11:53:10 +11:00
Russ Cox 45515011cc gc: final ...T bug for the day 
R=ken2
CC=golang-dev
https://golang.org/cl/199046
 2010-02-01 16:22:16 -08:00
Robert Griesemer f7e2266ce6 Corrected broken assertion. 
Fixes #571.

R=rsc
CC=golang-dev
https://golang.org/cl/198045
 2010-02-01 16:14:22 -08:00
Robert Griesemer e37495368c don't report a couple of meaningless errors in command-line mode 
R=rsc
CC=golang-dev
https://golang.org/cl/199045
 2010-02-01 16:13:58 -08:00
Rob Pike d2fc5d68da Change type of Printf's args to ... interface{} 
R=rsc
CC=golang-dev
https://golang.org/cl/197043
 2010-02-02 10:53:37 +11:00
Russ Cox 1f11ece67f nacl: fix build, finally fixed 8l convergence bug 
R=r
CC=golang-dev
https://golang.org/cl/199042
 2010-02-01 15:20:19 -08:00
Petar Maymounkov 0d8797bf73 http: test for ReadReqeust 
R=rsc, rsc1
CC=golang-dev
https://golang.org/cl/195068
 2010-02-01 11:23:38 -08:00
Russ Cox bea730d1f9 gc: ... T corner cases 
more to come, but should suffice for Printf work.

R=ken2
CC=golang-dev
https://golang.org/cl/197044
 2010-02-01 10:49:24 -08:00
Russ Cox 68796b0270 gc: add ... T, rework plain ... 
No longer a distinct type; now a property of func types.

R=ken2
CC=golang-dev
https://golang.org/cl/197042
 2010-02-01 00:25:59 -08:00
Rob Pike 20195bbe61 Fix redirection if the page is in a subdirectory. 
Fixes buggy links in the devel subdirectory.
Code from rsc; tested by me.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/197041
 2010-02-01 17:17:25 +11:00
Nigel Tao 5647e604f7 Check gzip strings for NUL elements, since they are NUL-terminated 
on the wire.

R=rsc
CC=golang-dev
https://golang.org/cl/194146
 2010-01-30 12:21:51 +11:00
Nigel Tao af7e0f1bdd Add a GZIP test for the empty payload. 
R=rsc, r
CC=golang-dev
https://golang.org/cl/194131
 2010-01-30 11:54:39 +11:00
Petar Maymounkov 84f9b70280 http: increase header line limit, let req.Host override req.URL.Host 
Fixes #566.

R=rsc
CC=golang-dev
https://golang.org/cl/194074
 2010-01-29 16:51:42 -08:00
Rob Pike d6ee49a119 fix bug in tick 
Fixes #576.

R=rsc, rog
CC=golang-dev
https://golang.org/cl/196061
 2010-01-29 13:10:33 -08:00
Devon H. O'Dell 4ffbff14b3 math: Change veryclose to close for Sinh and Exp tests. 
Fixes #550.

R=rsc
CC=eds, golang-dev, jtomaschke
https://golang.org/cl/196063
 2010-01-29 12:54:05 -08:00
Russ Cox 05f26366e5 two minor build fixes 
Fixes #572.
Fixes #570.

R=r
CC=golang-dev
https://golang.org/cl/194134
 2010-01-28 18:18:40 -08:00
Rob Pike 16ddb6c538 move comment on StringHeader to fix godoc output. 
R=rsc, ken2
CC=golang-dev
https://golang.org/cl/196055
 2010-01-29 12:43:46 +11:00
Russ Cox 6039a414ae io: fix nil Write bug in Pipe 
R=nigeltao_golang
CC=golang-dev
https://golang.org/cl/194132
 2010-01-28 17:38:51 -08:00
Ken Thompson d7a5ccf36e added StringHeader to reflect 
R=rsc
CC=golang-dev
https://golang.org/cl/194133
 2010-01-28 17:14:29 -08:00
Dean Prichard 77053797e0 avoid overflow of symb buffer in 5a/6a/8a/5c/6c/8c 
R=rsc
CC=golang-dev
https://golang.org/cl/194099
 2010-01-28 16:11:38 -08:00
Nigel Tao c9150003a9 gzip deflater (i.e., writer). 
Also, the unused Inflater.eof field was removed.
It has been unused since revision aaa0b24538.
"introduce os.EOF and io.ErrUnexpectedEOF. remove io.ErrEOF."
http://code.google.com/p/go/source/diff?spec=svnaaa0b24538ed1e3e54cbbfdd030a3c35785e74c5&r=aaa0b24538ed1e3e54cbbfdd030a3c35785e74c5&format=side&path=/src/pkg/compress/gzip/gunzip.go

R=rsc
CC=golang-dev
https://golang.org/cl/194122
 2010-01-29 11:00:05 +11:00
Russ Cox 288c1c83d9 gc: tweak error messages, avoid internalization settings in bison 
R=r
CC=golang-dev
https://golang.org/cl/194129
 2010-01-28 15:57:44 -08:00
Petar Maymounkov dd77c63d3d http: add lexing functions 
In particular, add field-value tokenizer which respects quoting rules.
The code is intended for use in tokenizing the Transfer-Encoding and Trailer fields.
The lexing function is not connected to the main parsing code yet (in the next CL).

R=rsc
CC=golang-dev
https://golang.org/cl/190085
 2010-01-28 15:14:54 -08:00
Petar Maymounkov a0e6f03add Cosmetic bug or compliance fixes in http.Response. 
(1) http.Response must close resp.Body after writing.
(2) Case when resp.Body != nil and resp.ContentLength = 0 should not be
treated as an error in Response.Write, because this is what
ReadResponse often returns.
(3) Changed body.th to body.hdr for readability.

R=rsc
CC=golang-dev
https://golang.org/cl/194084
 2010-01-28 15:13:26 -08:00
Rob Pike d53b426fa0 An experimental implemenation of Ticker using two goroutines for all tickers. 
Feel free to suggest other approaches.

R=rsc
CC=cw, golang-dev
https://golang.org/cl/193070
 2010-01-29 08:34:40 +11:00
Robert Griesemer 8fedbb8c3d support for ...T parameters (go/* packages) 
R=rsc
CC=golang-dev
https://golang.org/cl/194126
 2010-01-28 13:24:48 -08:00
Michael Hoisie f2539b1417 Allow underscores in XML element names (except for leading characters) 
Fixes #569

R=rsc, r
CC=golang-dev
https://golang.org/cl/194121
 2010-01-27 21:13:22 -08:00
Rob Pike 535e427272 Regularize the comments for the websocket package and document all functions and methods. 
R=rsc, ukai
CC=golang-dev
https://golang.org/cl/196044
 2010-01-28 15:38:32 +11:00
Russ Cox d72f2de9a2 go/parser: disable scoping code always 
Seems to be enabled spuriously during godoc (can't see why),
producing errors like:

parser.parseDir: src/pkg/http/server.go:159:16: 'Write' declared already at src/pkg/http/request.go:140:21 (and 4 more errors)

R=r
CC=golang-dev
https://golang.org/cl/194119
 2010-01-27 18:28:13 -08:00
Ken Thompson 424f9ca6ab change print print buffer size 
to go with the full path names

R=rsc
CC=golang-dev
https://golang.org/cl/195079
 2010-01-27 15:37:46 -08:00
Russ Cox a186b77b03 gc: implement defer print/println/panic/panicln 
Fixes #219.

R=ken2, r
CC=golang-dev
https://golang.org/cl/194097
 2010-01-27 15:37:08 -08:00
Robert Griesemer f39dc9fff2 More steps towards tracking of identifier scopes. 
- provide scope to parse functions; if non-nil, parser uses the scope
  to declare and lookup identifiers
- resolve forward references where possible

R=rsc
CC=golang-dev
https://golang.org/cl/194098
 2010-01-27 09:44:28 -08:00
Russ Cox 2a01d72878 gc: improved syntax errors 
* example-based syntax errors (go.errors)

* enable bison's more specific errors
  and translate grammar token names into
  tokens like ++

* test cases

R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/194085
 2010-01-26 23:13:22 -08:00
Kai Backman 9f5264f299 small embedded target for arm. 
R=rsc
CC=golang-dev
https://golang.org/cl/193104
 2010-01-26 20:22:59 -08:00
Russ Cox cb58ed75d2 cgo: update for package global name space 
Fixes #560.

R=r
CC=golang-dev
https://golang.org/cl/195051
 2010-01-26 18:20:15 -08:00
Russ Cox 3e0ee6b594 patch: handle text diffs from git 
R=r
CC=golang-dev
https://golang.org/cl/194094
 2010-01-26 17:49:33 -08:00
Michael Hoisie dd97923d82 net: fix segfault if /etc/hosts fails to open or doesn't exist 
R=rsc
CC=golang-dev, r
https://golang.org/cl/194043
 2010-01-26 16:18:29 -08:00
Russ Cox 5f4c052e2d gc: do not treat .6 different from .a anymore 
R=ken2
CC=golang-dev
https://golang.org/cl/195050
 2010-01-26 16:12:50 -08:00
Icarus Sparry 090e71e7fd os: in test, allow Hostname to return FQDN even if /bin/hostname does not 
Hostname reads the file /proc/sys/kernel/hostname to determine
the value it returns. Some people set this to a Fully Qualified
Doamin Name. At least one implementation of /bin/hostname
truncates the name it gets (often from the "uname" system call)
at the first dot unless it is given a "-f" flag. This change makes
the unit test also truncate at the first dot and checks if the strings
then match. This seems more portable than adding an extra flag
to the called /bin/hostname program.

R=rsc
CC=golang-dev
https://golang.org/cl/181097
 2010-01-26 13:16:03 -08:00
Icarus Sparry 7c1841fb2a gotest still assumes that gopack is in your PATH 
If your $PATH does not include $GOBIN then
the build fails at the first *.a file, which
is probably when running the tests for tar

R=rsc
CC=golang-dev
https://golang.org/cl/193066
 2010-01-26 13:15:59 -08:00
Charles L. Dorian d4ca006334 math: 386 FPU hypot 
Added 386 FPU version of Hypot; modified all_test.go to test
Hypot with large arguments.  Also edited sqrt.go to remove
Sqrt(0) as a special case.

R=rsc
CC=golang-dev
https://golang.org/cl/186180
 2010-01-26 12:53:02 -08:00
Robert Griesemer 2dd3622bc7 Allow func() func(). 
Update gofmt test script.

R=rsc
CC=golang-dev
https://golang.org/cl/195044
 2010-01-26 11:49:49 -08:00
Robert Griesemer 70b92ddad3 Bug in go/parser when coverting identifier lists. 
Fixes #567.

R=rsc
CC=golang-dev
https://golang.org/cl/195041
 2010-01-26 11:41:38 -08:00
Russ Cox 7abb4b3a96 gc: fix chan <- chan precedence. 
also allow func() func().

R=ken2
CC=golang-dev
https://golang.org/cl/194078
 2010-01-26 10:40:28 -08:00
Kai Backman 3884f7321f salvaging 183105 from dead client 
a number of fixes for arm elf generation in 5l. -T now works as
advertised, -D now works properly.

R=rsc
CC=golang-dev
https://golang.org/cl/194076
 2010-01-25 21:38:27 -08:00
Russ Cox 718be3215f in C and asm, replace pkg·name with ·name 
(eliminate assumption of package global name space,
make code easier to move between packages).

R=r
CC=golang-dev
https://golang.org/cl/194072
 2010-01-25 18:52:55 -08:00
Stephen Weinberg c90b05bf7d xml: add Escape, copied from template.HTMLEscape. 
R=rsc
CC=golang-dev
https://golang.org/cl/186282
 2010-01-25 18:50:51 -08:00
Petar Maymounkov 8814555534 http: make Request.Body an io.ReadCloser, matching Response.Body. 
R=rsc, rsc1
CC=golang-dev
https://golang.org/cl/194046
 2010-01-25 18:49:08 -08:00
Russ Cox 60a6ec1c93 ld: typo 
R=ken2
CC=golang-dev
https://golang.org/cl/194073
 2010-01-25 18:48:18 -08:00
Russ Cox 7263bfc73b cc: correct handling of leading · 
R=ken2
CC=golang-dev
https://golang.org/cl/193081
 2010-01-25 18:31:44 -08:00
Russ Cox 531e6b77c8 eliminate package global name space 
R=ken2
CC=golang-dev
https://golang.org/cl/194071
 2010-01-25 18:31:35 -08:00
Russ Cox 1912632019 runtime, type switch: eliminate package global name space assumption 
bonus: type switch now detects multiple uses of identical interface types.
bonus: interface types are now order-independent, following the spec.

R=ken2
CC=golang-dev
https://golang.org/cl/194053
 2010-01-25 18:23:20 -08:00
Russ Cox 3b1a0355b6 5l, 6l, 8l: accept only one object file 
(package main; others are pulled in automatically)

R=ken2
CC=golang-dev
https://golang.org/cl/194069
 2010-01-25 17:53:43 -08:00
Robert Griesemer dc061ffcbe steps towards a simplified parser interface 
minor cleanups (which I did at home before
but missed this morning at work)

R=rsc
CC=golang-dev
https://golang.org/cl/193095
 2010-01-25 17:24:50 -08:00
Andrey Mirtchovski 3fc41d5e65 net: parse aliases in /etc/hosts correctly 
Previous behaviour only picked the first entry (official hostname) but not the aliases.

R=rsc
CC=golang-dev
https://golang.org/cl/193092
 2010-01-25 14:57:04 -08:00
Robert Griesemer 6d8829e931 A <- token in an expression may introduce a channel type. 
Fixes #530.

R=rsc
CC=golang-dev
https://golang.org/cl/193091
 2010-01-25 12:03:53 -08:00
Robert Griesemer fcf4517423 Scoping snapshot. 
- separate parsing from declaration
- setup of correct scopes

R=rsc
CC=golang-dev
https://golang.org/cl/189098
 2010-01-25 10:06:18 -08:00
Russ Cox 69e244a104 ld: do not load the same object file multiple times. 
eliminates spurious multiple initialization errors.

give more information in the multiple init errors that remain.

Fixes #87.

R=r
CC=golang-dev
https://golang.org/cl/194052
 2010-01-25 08:53:27 -08:00
Christopher Wedgwood 34191d943b Remove top-level (src/) Makefile. 
R=rsc, dho, r
CC=golang-dev
https://golang.org/cl/194045
 2010-01-25 00:09:46 -08:00
Russ Cox 1cecac8134 gc: record full package paths in runtime type data 
detect compilation of special package runtime with
compiler flag instead of package name.

R=ken2
CC=golang-dev
https://golang.org/cl/193080
 2010-01-24 23:33:59 -08:00
Russ Cox d1b14a6fb0 gc: bug247, reported by rob 
R=ken2
CC=golang-dev
https://golang.org/cl/194051
 2010-01-24 22:42:18 -08:00
Russ Cox fd150e77e1 gc: cut some dead code, fix 6g -S output 
R=ken2
CC=golang-dev
https://golang.org/cl/193079
 2010-01-24 22:36:26 -08:00
Russ Cox 758f2bc556 eliminate the package global name space assumption in object files 
5g/6g/8g: add import statements to export metadata, mapping package path to package name.
	recognize "" as the path of the package in export metadata.
	use "" as the path of the package in object symbol names.

5c/6c/8c, 5a/6a/8a: rewrite leading . to "". so that ·Sin means Sin in this package.

5l/6l/8l: rewrite "" in symbol names as object files are read.

gotest: handle new symbol names.

gopack: handle new import lines in export metadata.

Collectively, these changes eliminate the assumption of a global
name space in the object file formats.  Higher level pieces such as
reflect and the computation of type hashes still depend on the
assumption; we're not done yet.

R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/186263
 2010-01-22 17:06:20 -08:00
Dean Prichard 07d3e0dce4 5a/6a/8a: avoid fixed-sized file name buffer 
R=rsc
CC=golang-dev
https://golang.org/cl/186279
 2010-01-22 16:59:17 -08:00
Russ Cox ce7f345cd1 gc: do not build builtin.c automatically; use golden copy instead. 
R=r
CC=golang-dev
https://golang.org/cl/190104
 2010-01-22 16:58:33 -08:00
Russ Cox c634189d56 typo 
R=r
CC=golang-dev
https://golang.org/cl/190103
 2010-01-22 14:24:17 -08:00
Ian Lance Taylor 82a7de9dfd Fix build: add new file to Makefile. 
TBR=frm.adiputra
CC=golang-dev
https://golang.org/cl/193055
 2010-01-22 07:12:54 -08:00
Firmansyah Adiputra 9628d4c6eb Add authentication. 
Other code fixing:
- Fixed bugs in get32.
- Fix code for parsing display string (as a new function).
- Fix code for connecting to X server. The old code only work
  if the server is listening to TCP port, otherwise it doesn't
  work (at least in my PC).

R=nigeltao_golang, rsc, jhh
CC=golang-dev
https://golang.org/cl/183111
 2010-01-22 17:55:44 +11:00
Christopher Wedgwood 2a57a5c9c7 Trim space on input to make searching more robust. 
R=rsc, r, gri
CC=golang-dev
https://golang.org/cl/186255
 2010-01-22 14:26:15 +11:00
Ken Thompson cd47c903e2 part 2 of sudoaddable optimization 
R=rsc
CC=golang-dev
https://golang.org/cl/190088
 2010-01-20 13:07:14 -08:00
Russ Cox a6736fa4ff cleanup toward eliminating package global name space 
* switch to real dot (.) instead of center dot (·) everywhere in object files.
    before it was half and half depending on where in the name it appeared.
  * in 6c/6a/etc identifiers, · can still be used but turns into . immediately.
  * in export metadata, replace package identifiers with quoted strings
    (still package names, not paths).

R=ken2, r
CC=golang-dev
https://golang.org/cl/190076
 2010-01-19 21:34:44 -08:00
Russ Cox 0365b989a4 runtime: wait to allocate mach semaphores backing Locks until needed 
need better management of mach semaphores eventually
but this avoids allocating them for uncontended Locks.

R=r
CC=agl1, golang-dev
https://golang.org/cl/190079
 2010-01-19 21:14:15 -08:00
Ken Thompson dfc0ed9559 start of better addressing of 
arrays/slices in structures

R=rsc
CC=golang-dev
https://golang.org/cl/190077
 2010-01-19 19:59:57 -08:00
Rob Pike 4d45dd3268 first part of networked channels. 
limitations:
	poor error handling
	teardown not done
	exporter must send, importer must receive
	testing is rudimentary at best

R=rsc
CC=golang-dev
https://golang.org/cl/186234
 2010-01-20 14:12:29 +11:00
Russ Cox 75c6dc9f6c http: handle old HTTP/1.0 unchunked "read to EOF" bodies. 
Was trying to interpret raw body as chunked body.

Add test for ReadResponse.

Fixes #544.

R=r, petar-m
CC=golang-dev, shadowice
https://golang.org/cl/190068
 2010-01-19 17:46:56 -08:00
Russ Cox 1634b4236b time: make tick.Stop a little more robust 
R=r
CC=golang-dev, jackpal
https://golang.org/cl/186228
 2010-01-19 17:46:21 -08:00
Russ Cox fe01d4c8a1 gc: const debug bool = false 
R=ken2
CC=golang-dev
https://golang.org/cl/186232
 2010-01-19 15:25:44 -08:00
Russ Cox 14ccf44fc7 compress/zlib: add example to doc comment 
Fixes #548.

R=r
CC=golang-dev, graycardinalster
https://golang.org/cl/190062
 2010-01-19 13:09:50 -08:00
Russ Cox ae3e8eb2ec ld: unused variable 
R=r
CC=golang-dev
https://golang.org/cl/186229
 2010-01-19 13:09:27 -08:00
Russ Cox b9f26c32c3 hash: document that Sum does not change hash state 
crypto/*: implement and test proper Sum

Fixes #216.

R=agl1
CC=golang-dev
https://golang.org/cl/186210
 2010-01-19 10:50:04 -08:00
Petar Maymounkov 914c626cae Significant extension to http.Response, which now adheres to the 
usage pattern of http.Request and paves the way to persistent connection
handling.

R=rsc
CC=golang-dev
https://golang.org/cl/185043
 2010-01-18 21:46:59 -08:00
Russ Cox 4f8117d9eb build: move GOOS, GOARCH, GOROOT lookup into central library. 
bake default values in during build.

R=r
CC=golang-dev
https://golang.org/cl/186173
 2010-01-18 21:46:46 -08:00
Russ Cox ff6e310b00 gc: bug245 
Fixes #529.

R=ken2
CC=golang-dev
https://golang.org/cl/186215
 2010-01-18 17:30:15 -08:00
Russ Cox 8e996304f3 gc: multiple return value at top-level invoked multiple times 
Fixes #402.

R=ken2
CC=golang-dev
https://golang.org/cl/186214
 2010-01-18 17:00:38 -08:00
Russ Cox e0059ae811 gc: bug243 
Fixes #481.

R=ken2
CC=golang-dev
https://golang.org/cl/186213
 2010-01-18 16:52:18 -08:00
Russ Cox 5a5799f613 gc: more precise handling of import . 
Fixes #455.

R=ken2
CC=golang-dev
https://golang.org/cl/186212
 2010-01-18 16:26:40 -08:00
Russ Cox 07fc145744 gc: be more specific about copy type errors 
Fixes #539.

R=ken2
CC=golang-dev
https://golang.org/cl/190043
 2010-01-18 16:00:13 -08:00
Russ Cox da225c231f reflect: fix garbage collection bug in Call. 
Fixes #476.

R=r
CC=golang-dev
https://golang.org/cl/190041
 2010-01-18 15:59:50 -08:00
Russ Cox 7c1bb00374 net: enable UDP broadcast before it is needed (instead of after) 
Fixes #526.

R=r
CC=golang-dev
https://golang.org/cl/186211
 2010-01-18 15:59:32 -08:00
Robert Griesemer e85f8378b8 Urgent parser/gofmt fix. 
Wrong position information for identifier
could lead to destructive reformatting of
source via hg gofmt.

R=rsc
CC=golang-dev
https://golang.org/cl/189100
 2010-01-15 23:17:48 -08:00
Rob Pike 11b459cba8 give bufio.Writer.WriteString the same signature as 
bytes.Buffer.WriteString

Fixes #535.

R=rsc
CC=golang-dev
https://golang.org/cl/189096
 2010-01-16 13:06:50 +11:00
Ian Lance Taylor c332ff42fe Don't check array bounds if we have been told not to. 
Fixes range.go test for 6g.

R=rsc
CC=golang-dev
https://golang.org/cl/189093
 2010-01-15 13:51:57 -08:00
Russ Cox 08d3f5e271 template: look inside interface values 
R=r
CC=golang-dev
https://golang.org/cl/186169
 2010-01-15 13:49:31 -08:00
Yves Junqueira d6054fcd88 Use /etc/hosts when resolving names. 
http://code.google.com/p/go/issues/detail?id=313

This conflics with Chris' patch at:
https://golang.org/cl/181063

But I believe this is more complete since it has a simple caching and proper tests.

R=cw, rsc
CC=golang-dev
https://golang.org/cl/183066
 2010-01-15 13:43:14 -08:00
Robert Griesemer 01b4f2dd23 Steps towards tracking scopes for identifiers. 
- Identifiers refer now to the language entity (Object)
	  that they denote. At the moment this is at best an
	  approximation.

	- Initial data structures for language entities (Objects)
          and expression types (Type) independent of the actual
	  type notations.

	- Initial support for declaring and looking up identifiers.

	- Updated various dependent files and added support functions.

	- Extensively tested to avoid breakage. This is an AST change.

R=rsc
CC=golang-dev, rog
https://golang.org/cl/189080
 2010-01-15 13:27:45 -08:00
Jan H. Hosang 67237c0f11 Implemented ExtendFront/Back functions to insert a list of elements into a list. 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/181151
 2010-01-15 13:26:13 -08:00
Charles L. Dorian 9a6b8e21e4 math: special cases for Hypot 
Added special case tests to all_test.go. Added tests to hypot.go,
otherwise hangs.

R=rsc
CC=golang-dev
https://golang.org/cl/186118
 2010-01-15 13:21:47 -08:00
Charles L. Dorian 7f11db5ea9 math: 386 FPU functions 
sin, cos, tan, asin, acos, atan, exp, log, log10,
floor, ceil, and fabs

R=rsc
CC=golang-dev
https://golang.org/cl/189083
 2010-01-15 13:21:36 -08:00
Nigel Tao 8cf627ad57 Fix s/Width/Height/ typo in draw.go. 
Fixes #531.

R=r
CC=golang-dev
https://golang.org/cl/189078
 2010-01-15 11:58:24 +11:00
Rob Pike 10a5eb0a29 fix +0000 time zones. 
Fixes #527.

R=rsc
CC=golang-dev
https://golang.org/cl/186159
 2010-01-15 10:56:16 +11:00
Russ Cox da9bc7ae7d runtime: add demo running Go on raw (emulated) hw 
8l: add GOOS=pchw, stop spelling out all the elf numbers.

R=r
CC=golang-dev
https://golang.org/cl/186144
 2010-01-13 19:51:59 -08:00
Devon H. O'Dell 1564b984a5 runtime: GS already set up by setldt in Linux/386; remove duplicate 
R=rsc
CC=golang-dev
https://golang.org/cl/186146
 2010-01-13 17:50:12 -08:00
Russ Cox 12518e441b runtime cleanup. 
* move memory code into $GOOS-specific directory.
  * allow printing of static strings < 256 bytes.
    (dynamic strings will bump maxstring as they are allocated.)
  * use cgo2c for runtime.mal.

R=r, dho
CC=golang-dev
https://golang.org/cl/186143
 2010-01-13 17:50:02 -08:00
Rob Pike d9283b27a2 clean up handling of numeric time zones 
allow formatting of ruby-style times.

Fixes #518.

R=rsc
CC=golang-dev
https://golang.org/cl/186119
 2010-01-14 11:57:38 +11:00
Devon H. O'Dell e8afb6d87f cgo: Only allow numeric / string / character type constants for references 
to #defined things.

Fixes #520.

R=rsc, rsaarelm
CC=golang-dev
https://golang.org/cl/186138
 2010-01-13 16:48:14 -08:00
Robert Griesemer 27be2915f3 Distinguish between html generation and html quoting in godoc formatters. 
Replacement for CL 184084; originally by Roger Peppe (rogpeppe@gmail.com).

R=rsc
CC=golang-dev, rog
https://golang.org/cl/189059
 2010-01-13 15:18:56 -08:00
Russ Cox 6ae763a727 vector: drop rule for bench, now in Make.pkg 
R=gri
CC=golang-dev
https://golang.org/cl/186139
 2010-01-13 13:29:49 -08:00
Russ Cox 1c6c0eee20 godoc: skip template wrapping for complete HTML files 
demo at http://wreck:8080/doc/
click on go_talk-20100112.html

R=gri
CC=golang-dev
https://golang.org/cl/186137
 2010-01-13 13:09:33 -08:00
Devon H. O'Dell 14a74378f4 cgo: handle C99 bool type 
Fixes #307.

R=rsc
CC=golang-dev
https://golang.org/cl/186073
 2010-01-13 10:25:28 -08:00
Russ Cox f85abf01bc runtime: reset DF flag after running external code on 386 
R=r
CC=golang-dev
https://golang.org/cl/186108
 2010-01-13 09:08:39 -08:00
Rob Pike 63d639295c don't worry about the number of spaces when parsing. 
allow an underscore to stand for a space or digit if the following number is >=10.

R=rsc
CC=golang-dev
https://golang.org/cl/186115
 2010-01-13 14:39:30 +11:00
Rob Pike ccbcefe2b6 ignore $GOARCH inside the compiler and linker. 
by definition, they know what they are building for.
makes it easier to switch architectures when testing.

% 6g x.go
% 6l x.6
% 6.out
"Wed Jan 13 10:57:46 EST 2010"
% 8g x.go
% 8l x.8
% 8.out
"Wed Jan 13 10:57:46 EST 2010"
% echo $GOARCH

%

R=rsc
CC=golang-dev
https://golang.org/cl/186116
 2010-01-13 14:39:16 +11:00
Rob Pike 24dafbaa37 to improve the chances for compatibility, open a window of unused ids 
and specify a lowest id granted to users.

R=rsc
CC=golang-dev
https://golang.org/cl/186081
 2010-01-13 12:06:43 +11:00
Robert Griesemer abda9e6f89 Light-weight scanner for general use. 
Emphasis on minimal interface and fast scanning.
Recognizes all Go literals by default. Easily
configurable to recognize different whitespace
characters and tokens.

Provides detailed position information for each
token.

R=rsc, r
CC=golang-dev
https://golang.org/cl/181160
 2010-01-12 17:04:45 -08:00
Adam Langley cbd3b2e8d5 Add 'bench' target to makefiles. 
R=rsc, agl, r
CC=golang-dev
https://golang.org/cl/188043
 2010-01-12 15:43:20 -08:00
Russ Cox 711088106e runtime: fix bug in preemption checks; was causing "lock count" panics 
R=r
CC=golang-dev
https://golang.org/cl/186078
 2010-01-12 10:03:02 -08:00
Roger Peppe 9d4d7d8f99 Fix bug that prevented the gofmt test script being run on more 
than one explicitly named file.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/186095
 2010-01-12 09:45:11 -08:00
Charles L. Dorian 46206c52e3 math: special cases for Ceil, Exp, Floor, Log, Log10 
Added special case tests to all_test.go. Added tests to Floor,
in-lined tests in Exp and Log.

R=rsc
CC=golang-dev
https://golang.org/cl/184081
 2010-01-11 21:28:02 -08:00
Adam Langley e7cceb85e4 asn1: fix marshaling of structures with >1 elements. 
Fixes #515.

R=rsc
CC=golang-dev
https://golang.org/cl/184079
 2010-01-11 18:54:13 -08:00
Adam Langley 72b97e46a3 asn1: fix parsing of elements after a string in a structure. 
Fixes #516.

R=rsc
CC=golang-dev, golang-dev
https://golang.org/cl/184080
 2010-01-11 18:53:58 -08:00
Rob Pike 2f63eb243c delete debugging prints 
R=rsc
CC=golang-dev
https://golang.org/cl/186079
 2010-01-11 17:35:51 -08:00
Rob Pike ba5d0f2098 delete debugging prints 
R=rsc
CC=golang-dev
https://golang.org/cl/186079
 2010-01-11 17:35:06 -08:00
Rob Pike 937caef8fa add pprof output format to prof. 
amd64 linux only.

R=rsc
CC=golang-dev
https://golang.org/cl/186077
 2010-01-11 16:53:45 -08:00
Charles L. Dorian 3c7534104a math: special cases for Fmod 
Added special case tests to all_test.go for Fmod. Fixed Fmod [hung
for Fmod(+/-Inf, <finite>)]. Also added test for Ceil in all_test.go.

R=rsc
CC=golang-dev
https://golang.org/cl/186076
 2010-01-11 16:20:51 -08:00
Devon H. O'Dell bc82aaddb6 cgo: Make constants #define'd in C available to Go (as consts) 
Fixes #435

R=rsc
CC=golang-dev
https://golang.org/cl/181161
 2010-01-11 13:05:26 -08:00
Yongjian Xu d668d4fbbd gc: clean opnames.h 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/181186
 2010-01-11 13:03:01 -08:00
Robert Griesemer 5dee91001b Remove -oldprinter flag from gofmt; all code is 
now printed using the semicolon-free style.

Removed NoSemis flag and mechanism dealing with
optional semicolons from go/printer.

Updated all go/printer output files using the
semi-colon free style.

Changes have no formatting impact on checked in
go code under src and misc.

R=rsc, r
CC=golang-dev
https://golang.org/cl/184068
 2010-01-11 12:58:13 -08:00
Rob Pike 00e2cda624 Clean up and make consistent the comments in the math package. 
R=rsc
CC=golang-dev
https://golang.org/cl/186042
 2010-01-12 07:38:31 +11:00
Russ Cox 093146b920 math: fix pow10 comment, test portable Sqrt 
R=r
CC= golang-dev, Charlie Dorian, golang-dev
https://golang.org/cl/184058
 2010-01-11 11:25:37 -08:00
David Symonds 0ed728c48a Replicate signal names from syscall in os/signal. 
R=rsc
CC=golang-dev
https://golang.org/cl/183142
 2010-01-11 11:23:46 -08:00
Robert Griesemer 93d81fb747 Partial work-around for gofmt bug. 
Addresses some cases and respects position of
closing parenthesis; but doesn't work yet in
all cases. Heuristic; will need to be replaced
by a real solution eventually. Does not cause
existing code to be reformatted.

R=r
CC=golang-dev, rsc
https://golang.org/cl/186043
 2010-01-11 10:38:06 -08:00
Charles L. Dorian 5336cd8f91 math: Sqrt using 386 FPU. 
Note: sqrt_decl.go already in src/pkg/math/.

R=rsc
CC=golang-dev
https://golang.org/cl/183155
 2010-01-10 15:41:07 -08:00
Russ Cox 5328df6534 runtime: check for preemption due to garbage collection 
in various already expensive routines.

helps keep cpu utilization up when GOMAXPROCS > 1,
but not a full solution.

http://groups.google.com/group/golang-nuts/t/7a9535c4136d3e2

R=r
CC=golang-dev
https://golang.org/cl/184043
 2010-01-09 09:47:45 -08:00
Charles L. Dorian fd1db67e87 math: special cases for Atan, Asin and Acos 
Added tests for NaN and out-of-range values.
Combined asin.go and atan.go into atan.go.

R=rsc
CC=golang-dev
https://golang.org/cl/180065
 2010-01-08 14:12:10 -08:00
Russ Cox 307a899d5b gc: bug238 
Fixes #471.

R=ken2
CC=golang-dev
https://golang.org/cl/181184
 2010-01-08 00:01:03 -08:00
Russ Cox 1b1f39eb86 gc: bug219, bug239, bug240 
Fixes #475.

R=ken2
CC=golang-dev
https://golang.org/cl/183157
 2010-01-07 23:24:48 -08:00
Russ Cox c6f4d68667 gc: bug241 
Fixes #495.

R=ken2
CC=golang-dev
https://golang.org/cl/183156
 2010-01-07 23:20:00 -08:00
Rob Pike f3e7ddc2fb Rewrite tokenizer to clean up and fix a bug with spaces before delimited block. 
Fixes #501.

R=rsc
CC=golang-dev
https://golang.org/cl/181183
 2010-01-08 17:49:55 +11:00
Russ Cox fe56e2cc35 http: most of a URL shouldn't use URL-escaping 
Fixes #502.

R=r, hoisie
CC=golang-dev
https://golang.org/cl/181179
 2010-01-07 18:10:29 -08:00
Rob Pike 448aa49cfe Add a parser to the time package, the inverse of time.Format 
R=rsc
CC=golang-dev
https://golang.org/cl/183141
 2010-01-08 12:59:20 +11:00
Robert Griesemer 35403e4cf2 added some missing periods 
R=rsc
CC=golang-dev
https://golang.org/cl/181171
 2010-01-07 09:27:24 -08:00
Rob Pike 676f9dfa06 make Format about twice as fast by removing allocations, using a bytes.Buffer 
add a benchmark

R=rsc
CC=golang-dev
https://golang.org/cl/181164
 2010-01-07 14:36:54 +11:00
Evan Shaw a551ffe809 8g: float->uint64 conversion optimization 
Using FUCOMIP instead of the FUCOMP-FSTSW-SAHF sequence gives better performance and saves code space.

R=rsc
CC=golang-dev
https://golang.org/cl/183139
 2010-01-06 19:28:19 -08:00
Evan Shaw c713a1f982 libmach: Add disassembly for newly implemented opcodes 
R=rsc
CC=golang-dev
https://golang.org/cl/183140
 2010-01-06 19:26:04 -08:00
Russ Cox 74a9fc18f6 runtime: close TODO now that 8c bug is fixed 
R=r
CC=golang-dev
https://golang.org/cl/183138
 2010-01-06 19:24:11 -08:00
Rob Pike fce5d60b38 add a standard interface that wraps ReadByte, io.ReadByter 
R=rsc
CC=golang-dev
https://golang.org/cl/181163
 2010-01-07 13:29:43 +11:00
Russ Cox 4cde1a903b sync make-arm.bash with make.bash 
R=r
CC=golang-dev
https://golang.org/cl/183135
 2010-01-06 18:19:56 -08:00
Russ Cox ee7c64efe5 8c: only refer to extern register variables in MOVL instructions 
R=ken2
https://golang.org/cl/183136
 2010-01-06 18:18:07 -08:00
Russ Cox 616394b177 deps.bash: handle space between .go and \ in GOFILES= 
R=r
CC=golang-dev
https://golang.org/cl/181157
 2010-01-06 17:59:15 -08:00
Hector Chu 6bfe5f55f4 Ported runtime to Windows. 
R=rsc
CC=golang-dev
https://golang.org/cl/176066
 2010-01-06 17:58:55 -08:00
Russ Cox 5c07e0c17c time: fix Makefile so deps.bash is happy (fixes build) 
TBR=r
https://golang.org/cl/183133
 2010-01-06 16:35:28 -08:00
Russ Cox e0763ba8e7 godoc: serve index.html in place of directory listing, when present 
R=gri
CC=golang-dev
https://golang.org/cl/181155
 2010-01-06 15:59:03 -08:00
Russ Cox 968d6a6d5a http: avoid header duplication - take struct fields out of Header map 
R=r
CC=golang-dev, petar-m
https://golang.org/cl/183132
 2010-01-06 15:45:30 -08:00
Devon H. O'Dell 690fcacdd3 cgo: Use -fno-eliminate-unused-debug-types when calling gcc to for dwarf stabs. 
This keeps debug symbols in for e.g. unreferenced enums.

Fixes #479

R=rsc
CC=golang-dev, waltermundt
https://golang.org/cl/181102
 2010-01-06 15:45:08 -08:00
Rob Pike e05b381e79 New time formatter, time.Format(formatString) 
The model is that formatString is a a representation of a standard time,
and that Format converts the time to that representation.
Standard representaitons are defined for ANSIC, RFC850, RFC1123, and ISO8601.
There's also a humane Kitchen fomat: 3:04PM.

R=rsc, benolive, cw
CC=golang-dev
https://golang.org/cl/181130
 2010-01-07 10:32:48 +11:00
Devon H. O'Dell 2eb9171dfb Fix missing explicit GOBIN in src/pkg/Makefile. Clean up creation of 
QUOTED_GOBIN. Re-take of 181077; fixes copy-pasta that broke build.

Fixes #468

R=rsc
CC=golang-dev
https://golang.org/cl/183125
 2010-01-06 07:47:56 -08:00
Ivan Krasin 597e57f4d5 Add http.CanonicalPath and tests for it. Remove BUG(rsc) from url.go. 
R=rsc, imkrasin
CC=golang-dev
https://golang.org/cl/179126
 2010-01-06 07:47:40 -08:00
Ivan Krasin e324e4099f Propagate error to the caller in json.Marshal. Fixes issue 445. 
R=rsc, imkrasin
CC=golang-dev
https://golang.org/cl/179125
 2010-01-06 07:25:17 -08:00
Evan Shaw 5107aa82a1 8a, 8l: Add FCOMI, FCOMIP, FUCOMI, FUCOMIP instructions 
Fixes #447

R=rsc
CC=golang-dev
https://golang.org/cl/183047
 2010-01-05 17:06:41 -08:00
Russ Cox 32594bd43d rollback of https://golang.org/cl/181077 
(broke build)

TBR=dho
https://golang.org/cl/181139
 2010-01-05 16:54:27 -08:00
Evan Shaw 1c819cb194 xml: Fix comment so that example code compiles 
R=rsc
CC=golang-dev
https://golang.org/cl/181138
 2010-01-05 16:50:52 -08:00
Russ Cox cfbee34a27 big: fix ProbablyPrime bug, comments 
(changes adopted from alc, agl)

R=agl1, agl
CC=golang-dev
https://golang.org/cl/181137
 2010-01-05 16:49:05 -08:00
Devon H. O'Dell e032ab9dc8 Fix missing explicit GOBIN in src/pkg/Makefile. Clean up creation of QUOTED_GOBIN 
Fixes #468

R=rsc
CC=golang-dev
https://golang.org/cl/181077
 2010-01-05 16:22:40 -08:00
Devon H. O'Dell 10cdec9262 syscall: add nanosleep on FreeBSD 
Fixes #461

R=rsc
CC=golang-dev
https://golang.org/cl/181059
 2010-01-05 09:21:15 -08:00
Roger Peppe 0281b71580 net: make Dial correctly return nil on error. 
R=rsc
CC=golang-dev
https://golang.org/cl/181135
 2010-01-05 09:20:02 -08:00
Robert Griesemer 50442290bb Simplified parser interface. 
R=rsc, r
CC=golang-dev, rog
https://golang.org/cl/183116
 2010-01-04 17:26:01 -08:00
Rob Pike a0ee18bdd5 Check for errors when writing fields of a struct. 
R=rsc
CC=golang-dev, jack.palevich
https://golang.org/cl/183109
 2010-01-05 11:33:06 +11:00
Roger Peppe f221067fe8 Allow a nil Ident to print without crashing. 
Allow Walk of []Decl

R=gri
CC=golang-dev, rsc
https://golang.org/cl/183112
 2010-01-04 10:34:37 -08:00
Yongjian Xu ca0def6659 Remove redundant size check in resize. Let callers worry about that and resize should just do "resize". 
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/181111
 2010-01-02 11:09:22 +11:00
Rob Pike 5a44338159 trivial bug: []byte is special but [3]byte is not. 
modify a test to verify the fix.

R=rsc
CC=golang-dev
https://golang.org/cl/183090
 2009-12-31 12:47:20 +11:00
Rob Pike a58b69e1d0 improve some type switches now that multiple types per case are supported. 
R=rsc
CC=golang-dev
https://golang.org/cl/181089
 2009-12-30 08:33:48 +11:00
Robert Griesemer e01459f567 Apply symmetric changes to sha1 and sha256 as to md4 and md5. 
R=agl, agl1
CC=golang-dev
https://golang.org/cl/183083
 2009-12-29 11:41:44 -08:00
Nigel Tao 5042a4e9f9 PNG decoder now handles transparent paletted images. 
Fixes #439.

R=r
CC=golang-dev
https://golang.org/cl/181087
 2009-12-29 15:23:55 +11:00
Nigel Tao 50d3447a36 JPEG decoder now handles RST (restart) markers. 
R=r
CC=golang-dev
https://golang.org/cl/181075
 2009-12-29 15:20:53 +11:00
Rob Pike e7601e2980 add a debugging printer to the gob package. 
used only for debugging, debug.go is not normally part of the package source.

also add a dump program to call it.

R=rsc
CC=golang-dev
https://golang.org/cl/183075
 2009-12-29 14:03:33 +11:00
Rob Pike 1f5511560e remove all references to gobType() from the decoder. 
Fixes #470.

R=rsc
CC=golang-dev
https://golang.org/cl/183074
 2009-12-29 14:03:12 +11:00
Robert Griesemer 2aefb8d930 Fix bug in godoc tab conversion filter: 
tabs after an empty line where not converted.

Also, made it more robust in the presence of
(unexpected) ' ' and '\v' chars in indentation
mode.

R=r
CC=golang-dev
https://golang.org/cl/181085
 2009-12-28 17:24:53 -08:00
Robert Griesemer f0fcb2d59f Symmetric changes to md4.go as for md5.go. 
Use uint index variables in some cases instead
of int to enable strength reduction; this makes
it possible for the compiler to reduce % into
masks.

Old code: 6g -S md4.go md4block.go | grep "md4block.go:44"
0471 (md4block.go:44) MOVL    AX,BX
0472 (md4block.go:44) MOVL    AX,BP
0473 (md4block.go:44) MOVL    AX,R8
0474 (md4block.go:44) SARL    $31,R8
0475 (md4block.go:44) SHRL    $30,R8
0476 (md4block.go:44) ADDL    R8,BP
0477 (md4block.go:44) SARL    $2,BP
0478 (md4block.go:44) IMULL   $4,BP
0479 (md4block.go:44) SUBL    BP,BX
0480 (md4block.go:44) MOVLQSX BX,BX
0481 (md4block.go:44) LEAQ    shift1+0(SB),BP
0482 (md4block.go:44) CMPL    BX,8(BP)
0483 (md4block.go:44) JCS     ,485
0484 (md4block.go:44) CALL    ,runtime.throwindex+0(SB)
0485 (md4block.go:44) MOVQ    (BP),BP
0486 (md4block.go:44) MOVL    (BP)(BX*4),DI

New code: 6g -S md4.go md4block.go | grep "md4block.go:44"
0471 (md4block.go:44) MOVL    AX,BX
0472 (md4block.go:44) ANDL    $3,BX
0473 (md4block.go:44) MOVLQZX BX,BX
0474 (md4block.go:44) LEAQ    shift1+0(SB),BP
0475 (md4block.go:44) CMPL    BX,8(BP)
0476 (md4block.go:44) JCS     ,478
0477 (md4block.go:44) CALL    ,runtime.throwindex+0(SB)
0478 (md4block.go:44) MOVQ    (BP),BP
0479 (md4block.go:44) MOVL    (BP)(BX*4),DI

R=agl, agl1
CC=golang-dev
https://golang.org/cl/181086
 2009-12-28 17:20:33 -08:00
Robert Griesemer 9d07d37f31 A couple of tighter loops. 
(I was looking at this code accidentally because of some gofmt
issues and thought that one could write this more effectively.
You may have deliberately chosen not to use ranges here to make
the index range clearer. Just let me know.)

R=agl, agl1
CC=golang-dev
https://golang.org/cl/181084
 2009-12-28 15:48:58 -08:00
Rob Pike 33311a7945 fix dumb bug: must write out default values inside arrays and slices 
Fixes #459.

R=rsc, imkrasin, sonia
CC=golang-dev
https://golang.org/cl/181073
 2009-12-29 07:41:53 +11:00
Robert Griesemer b6adb3272f simplify some code that is using vectors 
R=agl, agl1
CC=golang-dev
https://golang.org/cl/181080
 2009-12-28 12:27:43 -08:00
Adam Langley 3c6bf09539 crypto/tls: make Listener a pointer. 
Listener contains private members and 6g now enforces that private
members cannot be assigned outside of their package.

R=rsc
CC=golang-dev
https://golang.org/cl/183073
 2009-12-28 11:40:01 -08:00
Russ Cox 5f132b93eb gc: various C nits, found by plan 9 compiler. 
reported by erik quanstrom.

R=ken2
https://golang.org/cl/181071
 2009-12-27 09:32:30 -08:00
Devon H. O'Dell 1245e93b2c Update documentation around time.Sleep to specify its precision, and suggest 
a possible interface for more granular sleep times.

Fixes issue #260.

R=rsc, r
CC=golang-dev
https://golang.org/cl/181058
 2009-12-25 08:24:00 +11:00
Ian Lance Taylor 2be4897800 Use t.Errorf for formatted error output. 
R=dsymonds1
CC=golang-dev
https://golang.org/cl/183049
 2009-12-23 22:08:49 -08:00
Peter Froehlich e1033d07b4 Add query to find number of subexpressions. 
This was convenient for me to have without being forced
to parse the regexp myself. I'd understand if it's not
really wanted, but I also think that some meta information
about compiled regexps would be fine.

R=r, rsc
CC=golang-dev
https://golang.org/cl/183044
 2009-12-24 08:43:35 +11:00
Robert Griesemer b266f39b85 remove nums.sh 
R=rsc
CC=golang-dev
https://golang.org/cl/181049
 2009-12-23 13:15:00 -08:00
Rob Pike 96da3e96c3 implement .repeats for maps. 
Fixes #309.

R=rsc
CC=golang-dev
https://golang.org/cl/181044
 2009-12-24 07:41:56 +11:00
Rob Pike 8c557962de make 6prof (sic) architecture-independent. 
for now, it's amd64 and 386 only but it's trivial to add more.

Fixes #385.

(why couldn't it have been issue 386?)

tested for amd64 and 386 on darwin.

R=rsc
CC=golang-dev
https://golang.org/cl/182043
 2009-12-24 07:17:49 +11:00
Adam Langley 9ebb59634e crypto/tls: extensions and Next Protocol Negotiation 
Add support for TLS extensions in general and Next Protocol
Negotiation in particular.

R=rsc
CC=golang-dev
https://golang.org/cl/181045
 2009-12-23 11:13:09 -08:00
Devon H. O'Dell 7c9111434a cgo: don't overwrite p.Crefs 
It's expected to be shared between all files so that all types are output.
Fixes bug reported on mailing list by Peter Froehlich.

R=rsc, phf
CC=golang-dev
https://golang.org/cl/183043
 2009-12-23 09:26:21 -08:00
Peter Froehlich 3f25c8a2ef Fix comment for Chmod. 
R=r, rsc
CC=golang-dev
https://golang.org/cl/183042
 2009-12-23 08:49:38 -08:00
Robert Griesemer a0862ea568 Cleanup: remove Exp ending in identifiers 
as it is not needed anymore (only one impl.
of vector package).

Makefile, vector_test.go, and nogen_test.go
were modified manually (find/replace), the
other files (intvector_test.go, strinvector_test.go
are generated).

Runs all tests.

R=r
https://golang.org/cl/182041
 2009-12-22 18:45:36 -08:00
Robert Griesemer 8c7d001602 Replace container/vector with exp/vector (faster). 
Manual changes to the following files:
src/pkg/Makefile
src/pkg/exp/vector/Makefile (now: src/pkg/container/vector/Makefile)

R=rsc, r
CC=golang-dev
https://golang.org/cl/181041
 2009-12-22 18:25:27 -08:00
Robert Griesemer 36d645f5fa add comment (warning about generated files) 
R=r
CC=golang-dev
https://golang.org/cl/180108
 2009-12-22 15:14:10 -08:00
Rob Pike 148ee9c009 fix up %p 
- use an interface {Get()}
- implement Get for maps, slices
- for slices, retrieves the address of the end of the array, which will give the
	same value for every slice of the same array.

R=rsc
CC=golang-dev
https://golang.org/cl/179129
 2009-12-23 07:34:17 +11:00
Russ Cox d488c4b4ac json: fix doc comment 
R=gri
CC=golang-dev
https://golang.org/cl/179128
 2009-12-22 09:47:02 -08:00
Rob Pike 2e853ec88a Allow %p on reference types, for debugging. 
(Also fix case sensitivity in test for PTR inside fmt_test.go)
Fixes #441.

R=rsc, iant
CC=golang-dev
https://golang.org/cl/180112
 2009-12-22 17:02:00 +11:00
Robert Griesemer d2a398610e update test.sh so it can run to completion again 
R=r
CC=golang-dev
https://golang.org/cl/179120
 2009-12-21 15:05:50 -08:00
Jan Mercl b15fefd7d7 Experimental alternative implementation of the vector package 
R=gri
CC=rsc
https://golang.org/cl/178048
 2009-12-21 14:34:54 -08:00
Russ Cox 4ab0ce107a 8g: add TESTL etc to reg opt 
Fixes #436.

R=ken2
https://golang.org/cl/180105
 2009-12-21 11:02:18 -08:00
Russ Cox c276d87c6c cgo: interpret $CGOPKGDIR as absolute path if rooted 
R=dho
CC=golang-dev
https://golang.org/cl/180099
 2009-12-21 08:31:02 -08:00
Russ Cox 0d668259dc gc: method expressions on concrete types 
R=ken2
https://golang.org/cl/180092
 2009-12-18 17:24:58 -08:00
Rob Pike 1f0e6a4c99 new comments for bytes.NewBuffer and NewBufferString. 
corrects a common misunderstanding about NewBuffer.

R=rsc
CC=golang-dev
https://golang.org/cl/179106
 2009-12-19 08:42:31 +11:00
Adam Langley 50d6c81d4a runtime: fix race condition 
(Thanks to ken and rsc for pointing this out)

rsc:
	ken pointed out that there's a race in the new
	one-lock-per-channel code.  the issue is that
	if one goroutine has gone to sleep doing

	select {
	case <-c1:
	case <-c2:
	}

	and then two more goroutines try to send
	on c1 and c2 simultaneously, the way that
	the code makes sure only one wins is the
	selgen field manipulation in dequeue:

	       // if sgp is stale, ignore it
	       if(sgp->selgen != sgp->g->selgen) {
		       //prints("INVALID PSEUDOG POINTER\n");
		       freesg(c, sgp);
		       goto loop;
	       }

	       // invalidate any others
	       sgp->g->selgen++;

	but because the global lock is gone both
	goroutines will be fiddling with sgp->g->selgen
	at the same time.

This results in a 7% slowdown in the single threaded case for a
ping-pong microbenchmark.

Since the cas predominantly succeeds, adding a simple check first
didn't make any difference.

R=rsc
CC=golang-dev
https://golang.org/cl/180068
 2009-12-18 12:25:53 -08:00
Robert Griesemer 057e7d9fae fix build, enable an exp/eval's assignment check 
now that the parser doesn't do this test anymore

R=rsc
CC=golang-dev
https://golang.org/cl/179105
 2009-12-18 11:21:11 -08:00
Robert Griesemer 5dc6c80843 report an error for illegal octal numbers instead of treating them as floats 
added more test cases
some capitalization cleanups

R=rsc
CC=golang-dev
https://golang.org/cl/180085
 2009-12-18 10:52:11 -08:00
Robert Griesemer c5f41cc58c removed semantic check from parsers 
R=rsc
CC=golang-dev
https://golang.org/cl/179099
 2009-12-18 10:51:47 -08:00
Russ Cox 10e85dfee4 Make.pkg: fix cgo for TARG=a/b 
R=dho, phf
CC=golang-dev
https://golang.org/cl/180082
 2009-12-17 17:28:22 -08:00
Russ Cox 044ebae2f0 cgo: include line number information to keep go/printer happy 
Fixes #443.

R=dho
CC=golang-dev
https://golang.org/cl/179095
 2009-12-17 17:04:48 -08:00
Kai Backman d85bb81878 first stub for softfloats, intercepts float instructions and skips 
them in the stream.

R=rsc
https://golang.org/cl/174052
 2009-12-17 16:08:42 -08:00
Robert Griesemer 4ddcb0ea73 fix for gofmt rewrite matcher bug 
R=rsc
CC=golang-dev
https://golang.org/cl/179096
 2009-12-17 15:23:19 -08:00
Russ Cox 6a4b2492b3 gc: fix compiler crash 
R=ken2
CC=dho
https://golang.org/cl/179097
 2009-12-17 15:08:55 -08:00
Robert Griesemer 7fcf422181 use new tab indentation format in godoc, but convert 
leading tabs into spaces to ensure a good outcome in
most browsers

R=rsc
https://golang.org/cl/165051
 2009-12-17 14:10:49 -08:00
Ben Olive d2a835fbf3 time: add ISO 8601 time format 
Fixes #431.

R=r, rsc
CC=golang-dev
https://golang.org/cl/179079
 2009-12-17 13:39:13 -08:00
Devon H. O'Dell 9277b02537 Allow cgo to accept multiple .go inputs for a package 
Fixes #342.

R=rsc
CC=golang-dev
https://golang.org/cl/179062
 2009-12-17 13:20:56 -08:00
Devon H. O'Dell 7a5f4be97e Use BitSize instead of the field's type native ByteSize when calculating 
structs containing bitfields.

Fixes #163.

R=rsc
CC=golang-dev
https://golang.org/cl/180059
 2009-12-17 12:38:29 -08:00
Tor Andersson a812332151 Updated the XGB python script to generate semicolon-free 
source for xproto.go.

R=rsc
CC=golang-dev
https://golang.org/cl/180074
 2009-12-17 12:19:40 -08:00
Russ Cox 08579c26dd runtime: if os/signal is not in use, crash on 
most signals, so that ordinary programs
	can be killed, for example.

Fixes #434.

R=dsymonds1
CC=golang-dev, hoisie
https://golang.org/cl/180064
 2009-12-16 20:20:50 -08:00
Robert Griesemer 59a3cae402 - Parse expressions as opposed to statements for gofmt rewrite patterns. 
Allows stand-alone types (e.g. []int as patterns) and doesn't require
a semicolon at the end (which are now mandatory terminators).

- Fix a matcher bug.

R=rsc
CC=golang-dev
https://golang.org/cl/179088
 2009-12-16 16:53:56 -08:00
Nigel Tao 8bf58725b2 Basic image/jpeg decoder. 
This is not a complete JPEG implementation (e.g. it does not handle
progressive JPEGs or restart markers), but I was able to take a photo
with my phone, and view the resultant JPEG in pure Go.

The decoder is simple, but slow. The Huffman decoder in particular
should be easily improvable, but optimization is left to future
changelists. Being able to inline functions in the inner loop should
also help performance.

The output is not pixel-for-pixel identical to libjpeg, although
identical behavior isn't necessarily a goal, since JPEG is a lossy
codec. There are at least two reasons for the discrepancy.

First, the inverse DCT algorithm used is the same as Plan9's
src/cmd/jpg, which has different rounding errors from libjpeg's
default IDCT implementation. Note that libjpeg actually has three
different IDCT implementations: one floating point, and two fixed
point. Out of those four, Plan9's seemed the simplest to understand,
partly because it has no #ifdef's or C macros.

Second, for 4:2:2 or 4:2:0 chroma sampling, this implementation does
nearest neighbor upsampling, compared to libjpeg's triangle filter
(e.g. see h2v1_fancy_upsample in jdsample.c).

The difference from the first reason is typically zero, but sometimes
1 (out of 256) in YCbCr space, or double that in RGB space. The
difference from the second reason can be as large as 8/256 in YCbCr
space, in regions of steep chroma gradients. Informal eyeballing
suggests that the net difference is typically imperceptible, though.

R=r
CC=golang-dev, rsc
https://golang.org/cl/164056
 2009-12-17 10:32:17 +11:00
Robert Griesemer b6bac1c0a5 Don't ignore flags controlling the amount of source code parsed 
in parser's ParsePkgFile and ParsePackage functions.

R=rsc
CC=golang-dev, rog
https://golang.org/cl/180070
 2009-12-16 14:12:24 -08:00
Rob Pike 42a2e95989 add the ability to invoke niladic single-valued methods in templates. 
Fixes #389.

R=rsc
CC=golang-dev
https://golang.org/cl/180061
 2009-12-16 03:10:50 -08:00
Moriyoshi Koizumi a8fbf5dc2c This patch enables cgo utility to correctly convert enums in the C source 
into consts in the resulting Go source.  Previously known as issue 161047,
which I deleted accidentally.  Fixes issue 207.

R=rsc
https://golang.org/cl/166059
 2009-12-15 21:24:17 -08:00
William Josephson 52114724b7 rand: Zipf distributed random variates. 
R=rsc
https://golang.org/cl/176070
 2009-12-15 21:10:37 -08:00
Andrey Mirtchovski 7f501c06f7 bytes, strings: add new function Fields 
R=rsc, r, phf
CC=golang-dev
https://golang.org/cl/170046
 2009-12-15 21:09:55 -08:00
Charles L. Dorian d5bcf7bf41 math: special cases for Pow 
R=rsc
CC=golang-dev
https://golang.org/cl/176064
 2009-12-15 20:43:12 -08:00
David Symonds b5866494ea os/signal: new package 
Fixes #71.

R=rsc, r
https://golang.org/cl/162056
 2009-12-15 18:21:29 -08:00
Robert Griesemer a47a45ec77 Fix for scanner bug (introduced with most recent change). 
Fixes #433.

R=rsc
CC=golang-dev
https://golang.org/cl/179072
 2009-12-15 18:03:59 -08:00
Russ Cox 69bed164a7 syscall: RawSyscall must not call exitsyscall 
Fixes #405.

R=r
CC=golang-dev, hoisie
https://golang.org/cl/180056
 2009-12-15 17:37:47 -08:00
Russ Cox f64bb56bae rand: add explicit Int31n to avoid 64-bit divide on 32-bit machines 
use Int31n in Intn when possible.

Fixes #390.

(using 8g)
Intn1000      50000000         38 ns/op
Int31n1000    50000000         39 ns/op
Int63n1000    20000000        114 ns/op

R=r
CC=golang-dev, skybrian
https://golang.org/cl/180054
 2009-12-15 17:21:34 -08:00
Russ Cox 1e9e7ec4b3 math: faster, easier to inline IsNaN, IsInf 
R=r
CC=golang-dev
https://golang.org/cl/180046
 2009-12-15 17:21:01 -08:00
Russ Cox d16bc7a9f2 runtime: return zero value in x, ok = <-c when ok == false 
Fixes #401.

R=ken2
https://golang.org/cl/180053
 2009-12-15 16:59:23 -08:00