| commit | dbc540c7a5827529a3f58befc9e5b81a31ec8fab | [log] [tgz] |
|---|---|---|
| author | René Scharfe <l.s.r@web.de> | Thu Sep 29 17:23:43 2016 +0200 |
| committer | Junio C Hamano <gitster@pobox.com> | Thu Sep 29 15:42:18 2016 -0700 |
| tree | cd2c485c62e68411e418616c6ca26923e24b3e1b | |
| parent | 21f862b498925194f8f1ebe8203b7a7df756555b [diff] |
add QSORT Add the macro QSORT, a convenient wrapper for qsort(3) that infers the size of the array elements and supports the convention of initializing empty arrays with a NULL pointer, which we use in some places. Calling qsort(3) directly with a NULL pointer is undefined -- even with an element count of zero -- and allows the compiler to optimize away any following NULL checks. Using the macro avoids such surprises. Add a semantic patch as well to demonstrate the macro's usage and to automate the transformation of trivial cases. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.
Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.
Please read the file INSTALL for installation instructions.
Many Git online resources are accessible from http://git-scm.com/ including full documentation and Git related tools.
See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.
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The name “git” was given by Linus Torvalds when he wrote the very first version. He described the tool as “the stupid content tracker” and the name as (depending on your mood):