8fbfdad281
A 16bit binary exponent permits a constant range covering roughly the range from 7e-9865 to 7e9863 which is more than enough for any practical and hypothetical constant arithmetic. Furthermore, until recently cmd/compile could not handle very large exponents correctly anyway; i.e., the chance that any real programs (but for tests that explore corner cases) are affected are close to zero. Finally, restricting the minimum supported range significantly reduces the implementation complexity in an area that hardly matters in reality for new or alternative spec-compliant implementations that don't or cannot rely on pre-existing arbitratry precision arithmetic packages that support a 32bit exponent range. This is technically a language change but for the reasons mentioned above this is unlikely to affect any real programs, and certainly not programs compiled with the gc or gccgo compilers as they currently support up to 32bit exponents. Fixes #13572. Change-Id: I970f919c57fc82c0175844364cf48ea335f17d39 Reviewed-on: https://go-review.googlesource.com/17711 Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Russ Cox <rsc@golang.org> |
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README.md
The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
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.
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
Note that we do not accept pull requests and that we use the issue tracker for bug reports and proposals only. Please ask questions on https://forum.golangbridge.org or https://groups.google.com/forum/#!forum/golang-nuts.
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.