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Rémy Oudompheng 2368b003e0 strconv: implement faster parsing of decimal numbers. 
The algorithm is the same as in the double-conversion library
which also implements Florian Loitsch's fast printing algorithm.
It uses extended floats with a 64-bit mantissa, but cannot give
an answer for all cases.

                           old ns/op  new ns/op  speedup
BenchmarkAtof64Decimal         332        322      1.0x
BenchmarkAtof64Float           385        373      1.0x
BenchmarkAtof64FloatExp       9777        419     23.3x
BenchmarkAtof64Big            3934        691      5.7x
BenchmarkAtof64RandomBits    34060        899     37.9x
BenchmarkAtof64RandomFloats   1329        680      2.0x

See F. Loitsch, ``Printing Floating-Point Numbers Quickly and
Accurately with Integers'', Proceedings of the ACM, 2010.

R=ality, rsc
CC=golang-dev, remy
https://golang.org/cl/5494068
2011-12-19 16:45:51 -05:00
doc doc: delete go course notes 2011-12-19 13:23:27 -08:00
include os: OS-dependent bits to support NetBSD. 2011-12-15 12:19:19 -05:00
lib codereview: Initialize "found" in codereview.py. 2011-12-16 10:39:20 -05:00
misc dashboard: improve formatting of build status page 2011-12-19 16:57:25 +11:00
src strconv: implement faster parsing of decimal numbers. 2011-12-19 16:45:51 -05:00
test various: use $GCFLAGS and $GCIMPORTS like Make does 2011-12-16 11:31:39 -05:00
.hgignore build: update .hgignore 2011-12-02 16:24:12 +11:00
.hgtags tag weekly.2011-12-14 2011-12-15 16:57:28 +11:00
AUTHORS A+C: Vadim Vygonets (individual CLA) 2011-12-14 17:17:09 -05:00
CONTRIBUTORS A+C: Vadim Vygonets (individual CLA) 2011-12-14 17:17:09 -05:00
favicon.ico add a favicon plus a couple of hi-res versions of gordon 2009-10-26 10:13:07 -07:00
LICENSE LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README build: update, streamline documentation for new $GOBIN 2010-08-24 20:00:50 -04:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

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.