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The Go programming language
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Martin Möhrmann 2c7c727c1c sort: reduce number of comparisons needed by medianOfThree 
For some cases we can ensure the correct order of elements in two
instead of three comparisons. It is unnecessary to compare m0 and
m1 again if m2 and m1 are not swapped.

benchmark                   old ns/op      new ns/op      delta
BenchmarkSortString1K       302721         299590         -1.03%
BenchmarkSortInt1K          124055         123215         -0.68%
BenchmarkSortInt64K         12291522       12203402       -0.72%
BenchmarkSort1e2            58027          57111          -1.58%
BenchmarkSort1e4            12426805       12341761       -0.68%
BenchmarkSort1e6            1966250030     1960557883     -0.29%

Change-Id: I2b17ff8dee310ec9ab92a6f569a95932538768a9
Reviewed-on: https://go-review.googlesource.com/2614
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-01-13 19:37:02 +00:00
api runtime: add GODEBUG=gccheckmark=0/1 2015-01-12 16:36:50 +00:00
doc go1.5.txt: better checking of struct tags 2015-01-12 23:17:41 +00:00
include cmd/9l: support internal linking 2015-01-07 20:35:54 +00:00
lib/time remove the obsolete lib/codereview. 2014-12-08 07:51:54 +00:00
misc cmd/cgo: also rewrite C.var in selector expressions 2015-01-12 21:48:57 +00:00
src sort: reduce number of comparisons needed by medianOfThree 2015-01-13 19:37:02 +00:00
test cmd/gc: don't recurse infinitely when a recursive type references itself more than once 2015-01-12 02:09:50 +00:00
.gitattributes .gitattributes: prevent all magic line ending changes 2014-12-12 23:14:54 +00:00
.gitignore all: tighten overly-broad runtime/z* gitignore line 2014-12-10 00:45:47 +00:00
AUTHORS A+C: add another email address for Emil Hessman 2014-11-12 10:01:23 -08:00
CONTRIBUTING.md doc: update README.md and CONTRIBUTING.md in response to review comments 2014-12-10 22:48:34 +00:00
CONTRIBUTORS C: add Nick Cooper (Google CLA). 2014-11-14 17:03:17 +11:00
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README.md README: emphasize that we don't accept pull requests 2015-01-08 18:50:47 +00:00
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README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

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For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.

Our canonical Git repository is located at https://go.googlesource.com/go. (There is a mirror of the repository at https://github.com/golang/go.)

Please report issues here: https://golang.org/issue/new

Go is the work of hundreds of contributors. We appreciate your help!

To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

Please note that we do not use pull requests.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

--

Binary Distribution Notes

If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.

For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:

export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin

See https://golang.org/doc/install or doc/install.html for more details.