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The Go programming language
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06ed8f0df7
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Martin Möhrmann 06ed8f0df7 strconv: speed up atoi for common cases 
Add compile time constants for bases 10 and 16 instead of computing the cutoff
value on every invocation of ParseUint by a division.

Reduce usage of slice operations.

amd64:
benchmark              old ns/op     new ns/op     delta
BenchmarkAtoi          44.6          36.0          -19.28%
BenchmarkAtoiNeg       44.2          38.9          -11.99%
BenchmarkAtoi64        72.5          56.7          -21.79%
BenchmarkAtoi64Neg     66.1          58.6          -11.35%

386:
benchmark              old ns/op     new ns/op     delta
BenchmarkAtoi          86.6          73.0          -15.70%
BenchmarkAtoiNeg       86.6          72.3          -16.51%
BenchmarkAtoi64        126           108           -14.29%
BenchmarkAtoi64Neg     126           108           -14.29%

Change-Id: I0a271132120d776c97bb4ed1099793c73e159893
Reviewed-on: https://go-review.googlesource.com/2460
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-01-08 20:58:26 +00:00
api api: update next.txt 2014-12-18 03:21:48 +00:00
doc doc/contribute: add necessary <code> tags, remove an extra close parenthesis. 2015-01-07 17:26:50 +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 misc/swig/stdio: fix broken nil pointer test 2015-01-07 23:24:23 +00:00
src strconv: speed up atoi for common cases 2015-01-08 20:58:26 +00:00
test runtime: increase GC concurrency. 2015-01-08 20:34:56 +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
favicon.ico godoc: update favicon 2012-10-11 17:02:36 +11:00
LICENSE
PATENTS
README.md README: emphasize that we don't accept pull requests 2015-01-08 18:50:47 +00:00
robots.txt

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.