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The Go programming language
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This changes the output of rand.Seed(0) perm := rand.Perm(100) When giving the same seeds to Go 1.0 and Go 1.1 programs I would like them to generate the same random numbers. ««« original CL description math/rand: remove noop iteration in Perm The first iteration always do `m[0], m[0] = m[0], m[0]`, because `rand.Intn(1)` is 0. fun note: IIRC in TAOCP version of this algorithm, `i` goes backward (n-1->1), meaning that the "already" shuffled part of the array is never altered betweens iterations, while in the current implementation the "not-yet" shuffled part of the array is conserved between iterations. R=golang-dev CC=golang-dev https://golang.org/cl/6845121 »»» R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/6905049 |
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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.