commit 85d149506305e7abe0aca5ad5ac4b1fce82ccd11
author Tobias Klauser <tklauser@distanz.ch> Fri Jul 21 12:18:19 2017 +0200
committer Ian Lance Taylor <iant@golang.org> Tue Jul 25 14:02:08 2017 +0000
tree 9b1cfc50168de64a7d2d049fe490db72c5e873b2
parent a7f1d9efe62dde5b493235fd68bb6f45e4a5d56b

unix: add Major, Minor and Mkdev functions on Linux

Add Major, Minor and Mkdev functions for converting devices numbers to
their major/minor components and vice versa.

The functions follow the behavior of glibc's corresponding macros. Also
add an explanatory comment about the device number format, so the magic
numbers make more sense.

Test the conversion macros with some well-known device numbers for
devices which should be present on any Linux system.

Fixes golang/go#8106

Change-Id: Id336317985d6ac85ee83bc54e5f23703257c9121
Reviewed-on: https://go-review.googlesource.com/50550
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>