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Gustavo Niemeyer 4521782514 cgo: fix handling of signed enumerations 
Structs defined in C as containing a field with
an enum type are currently translated to Go as
a struct with an unsigned integer field, even if
some of the values contained in the enum are
negative.

This modification takes in consideration the values
defined in the enum, and conditionally defines the
Go type as signed if necessary.

The logic introduced was tested with gcc, which
will increase the type size if it contains both
negative numbers and values greater than 2^b/2-1,
and refuses to compile values which would be
problematic (2^64-1, but in fact the ISO C
restricts the range to the size of int).

R=rsc
CC=golang-dev
https://golang.org/cl/4119058
2011-02-08 23:50:14 -05:00
doc go spec: fix a few typos 2011-02-08 14:51:15 -08:00
include windows: replace remaining __MINGW32__ instances with _WIN32 2011-02-08 15:42:52 -05:00
lib codereview: use cmd.communicate. 2011-02-08 22:30:06 -05:00
misc go/ast: reflect communication operator changes accurately in ast 2011-02-01 13:47:51 -08:00
src cgo: fix handling of signed enumerations 2011-02-08 23:50:14 -05:00
test issue 1402: added test case 2011-02-03 20:35:14 -08:00
.hgignore .hgignore: ignore src/pkg/runtime/version_*.go 2011-02-09 12:34:50 +11:00
.hgtags tag release.2011-02-01.1 2011-02-02 12:11:29 +11:00
AUTHORS A+C: Dave Cheney (individual CLA) 2011-02-03 14:15:27 -05:00
CONTRIBUTORS A+C: Dave Cheney (individual CLA) 2011-02-03 14:15:27 -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

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.