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go / go / abcad1e59de42e6275c735ba4303cbe1eb3adac7
commitabcad1e59de42e6275c735ba4303cbe1eb3adac7[log] [tgz]
authorMartin Möhrmann <martisch@uos.de>Sat Feb 20 01:51:32 2016 +0100
committerRob Pike <r@golang.org>Sat Feb 27 06:59:39 2016 +0000
treee5088f8427abbdefb308edcee9db1dfc236949cd
parent8b96bc6818ca673b4d6b832190f7e823c80804ca [diff]
fmt: change padding functions to avoid package init

Move the decision if zero padding is allowed to doPrintf
where the other formatting decisions are made.

Removes some dead code for negative f.wid that was never used
due to f.wid always being positive and f.minus deciding if left
or right padding should be used.

New padding code writes directly into the buffer and is as fast
as the old version but avoids the cost of needing package init.

name              old time/op  new time/op  delta
SprintfPadding-2   246ns ± 5%   245ns ± 4%   ~     (p=0.345 n=50+47)

Change-Id: I7dfddbac8e328f4ef0cdee8fafc0d06c784b2711
Reviewed-on: https://go-review.googlesource.com/19957
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
3 files changed
tree: e5088f8427abbdefb308edcee9db1dfc236949cd
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
README.md

The Go Programming Language

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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.