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The Go programming language
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d6147d8102
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Rémy Oudompheng d6147d8102 strconv: extend Grisu3 algorithm to float32. 
Also improve extfloat.Normalize to obtain a modest performance
gain in parsing, and add a shortcut path for exact integers.

benchmark                              old ns/op    new ns/op    delta
BenchmarkAtof64Decimal                        73           73   -0.54%
BenchmarkAtof64Float                          91           91   -0.54%
BenchmarkAtof64FloatExp                      198          180   -9.09%
BenchmarkAtof64Big                           307          308   +0.33%

BenchmarkAtof32Decimal                        72           72   +0.42%
BenchmarkAtof32Float                          83           83   -0.72%
BenchmarkAtof32FloatExp                      212          186  -12.26%
BenchmarkAtof32Random                        262          250   -4.58%

BenchmarkAppendFloatDecimal                  474          305  -35.65%
BenchmarkAppendFloat                         497          489   -1.61%
BenchmarkAppendFloatExp                      493          483   -2.03%
BenchmarkAppendFloatNegExp                   481          481   +0.00%
BenchmarkAppendFloatBig                      667          652   -2.25%

BenchmarkAppendFloat32Integer                338          307   -9.17%
BenchmarkAppendFloat32ExactFraction          364          439  +20.60%
BenchmarkAppendFloat32Point                 1299          490  -62.28%
BenchmarkAppendFloat32Exp                   2593          489  -81.14%
BenchmarkAppendFloat32NegExp                5116          481  -90.60%

R=rsc, r
CC=golang-dev, remy
https://golang.org/cl/6303087
2012-07-10 07:44:23 +02:00
api api: update next.txt 2012-06-30 12:25:38 -07:00
doc doc: various "the the" and other typos 2012-07-08 11:57:04 +10:00
include build: remove unnecessary pragmas 2012-02-06 12:45:23 -05:00
lib codereview: support mercurial 2.2.1 2012-05-17 02:54:03 +08:00
misc misc/chrome/gophertool: fix manifest 2012-07-05 16:52:13 -04:00
src strconv: extend Grisu3 algorithm to float32. 2012-07-10 07:44:23 +02:00
test cmd/gc: cache itab lookup in convT2I. 2012-07-03 09:09:05 +10:00
.hgignore build: update Makefile to track source code dependencies better 2012-03-13 03:31:11 +08:00
.hgtags tag go1.0.2 2012-06-14 13:18:10 +10:00
AUTHORS A+C: correct Matt Jibson 2012-07-08 12:09:15 +10:00
CONTRIBUTORS A+C: correct Matt Jibson 2012-07-08 12:09:15 +10:00
favicon.ico
LICENSE doc: update licensing text one more time 2012-03-27 15:09:13 +11:00
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README
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README 

This is the source code repository for the Go programming language.  

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

After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.

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 README).  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.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 doc/install.html for more details.