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René Scharfe 60566cbb58 add COPY_ARRAY
Add COPY_ARRAY, a safe and convenient helper for copying arrays,
complementing ALLOC_ARRAY and REALLOC_ARRAY.  Users just specify source,
destination and the number of elements; the size of an element is
inferred automatically.

It checks if the multiplication of size and element count overflows.
The inferred size is passed first to st_mult, which allows the division
there to be done at compilation time.

As a basic type safety check it makes sure the sizes of source and
destination elements are the same.  That's evaluated at compilation time
as well.

COPY_ARRAY is safe to use with NULL as source pointer iff 0 elements are
to be copied.  That convention is used in some cases for initializing
arrays.  Raw memcpy(3) does not support it -- compilers are allowed to
assume that only valid pointers are passed to it and can optimize away
NULL checks after such a call.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-25 16:44:12 -07:00
Documentation Merge branch 'nd/connect-ssh-command-config' 2016-07-19 13:22:12 -07:00
block-sha1
builtin Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
ci
compat Merge branch 'js/mingw-parameter-less-c-functions' into maint 2016-07-11 10:44:13 -07:00
contrib Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
ewah
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gitweb Merge branch 'sk/gitweb-highlight-encoding' into HEAD 2016-05-18 14:40:10 -07:00
mergetools
perl git-svn: warn instead of dying when commit data is missing 2016-07-09 22:53:54 +00:00
po Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
ppc
refs coccinelle: apply object_id Coccinelle transformations 2016-06-28 11:39:02 -07:00
t Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
templates
vcs-svn
xdiff Merge branch 'rs/xdiff-hunk-with-func-line' into maint 2016-06-27 09:56:24 -07:00
.gitattributes
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.travis.yml perf: accommodate for MacOSX 2016-06-21 11:18:17 -07:00
COPYING
GIT-VERSION-GEN Git 2.9.2 2016-07-15 10:48:16 -07:00
INSTALL
LGPL-2.1
Makefile Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
README.md README.md: format CLI commands with code syntax 2016-05-31 08:54:24 -07:00
RelNotes Git 2.9.2 2016-07-15 10:48:16 -07:00
abspath.c
aclocal.m4
advice.c i18n: advice: internationalize message for conflicts 2016-06-17 15:45:48 -07:00
advice.h
alias.c
alloc.c
archive-tar.c archive-tar: huge offset and future timestamps would not work on 32-bit 2016-07-15 10:51:55 -07:00
archive-zip.c
archive.c pathspec: rename free_pathspec() to clear_pathspec() 2016-06-02 14:09:22 -07:00
archive.h
argv-array.c
argv-array.h
attr.c
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base85.c
bisect.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
bisect.h
blob.c
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builtin.h
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bundle.c
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cache-tree.c
cache-tree.h
cache.h Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
check-builtins.sh
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color.c Merge branch 'jk/ansi-color' 2016-07-11 10:31:05 -07:00
color.h Merge branch 'js/color-on-windows-comment' 2016-07-11 10:31:09 -07:00
column.c
column.h
combine-diff.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
command-list.txt
commit-slab.h
commit.c Merge branch 'js/sign-empty-commit-fix' 2016-07-13 11:24:15 -07:00
commit.h Merge branch 'js/find-commit-subject-ignore-leading-blanks' 2016-07-11 10:31:08 -07:00
config.c Merge branch 'jk/upload-pack-hook' 2016-07-06 13:38:11 -07:00
config.mak.in
config.mak.uname mingw: make isatty() recognize MSYS2's pseudo terminals (/dev/pty*) 2016-05-26 13:12:02 -07:00
configure.ac
connect.c connect: read $GIT_SSH_COMMAND from config file 2016-07-06 14:04:09 -07:00
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
credential-cache--daemon.c Merge branch 'nd/error-errno' 2016-05-17 14:38:28 -07:00
credential-cache.c
credential-store.c
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c daemon: enable SO_KEEPALIVE for all sockets 2016-05-25 09:42:53 -07:00
date.c local_tzoffset: detect errors from tm_to_time_t 2016-06-20 15:08:07 -07:00
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
diff.h
diffcore-break.c diff: rename struct diff_filespec's sha1_valid member 2016-06-28 11:39:02 -07:00
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c diff: rename struct diff_filespec's sha1_valid member 2016-06-28 11:39:02 -07:00
diffcore.h diff: rename struct diff_filespec's sha1_valid member 2016-06-28 11:39:02 -07:00
dir.c Merge branch 'nd/worktree-various-heads' 2016-05-23 14:54:29 -07:00
dir.h Merge branch 'nd/worktree-various-heads' 2016-05-23 14:54:29 -07:00
editor.c
entry.c
environment.c Merge branch 'js/windows-dotgit' into maint 2016-05-26 13:17:23 -07:00
exec_cmd.c
exec_cmd.h
fast-import.c Merge branch 'ew/fast-import-unpack-limit' 2016-06-20 11:01:00 -07:00
fetch-pack.c
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fmt-merge-msg.h
fsck.c Merge branch 'jc/fsck-nul-in-commit' 2016-05-17 14:38:34 -07:00
fsck.h
generate-cmdlist.sh
gettext.c
gettext.h
git-add--interactive.perl add--interactive: respect diff.compactionHeuristic 2016-06-16 11:38:58 -07:00
git-archimport.perl
git-bisect.sh i18n: unmark die messages for translation 2016-06-17 15:46:10 -07:00
git-compat-util.h add COPY_ARRAY 2016-09-25 16:44:12 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-difftool.perl difftool: handle unmerged files in dir-diff mode 2016-05-16 14:53:05 -07:00
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh i18n: git-sh-setup.sh: mark strings for translation 2016-06-17 15:45:48 -07:00
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh Merge branch 'nf/mergetool-prompt' into HEAD 2016-05-18 14:40:07 -07:00
git-p4.py Merge branch 'ao/p4-has-branch-prefix-fix' into maint 2016-07-11 10:44:16 -07:00
git-parse-remote.sh
git-quiltimport.sh
git-rebase--am.sh rebase: update comment about FreeBSD /bin/sh 2016-06-17 11:04:38 -07:00
git-rebase--interactive.sh Merge branch 'ps/rebase-i-auto-unstash-upon-abort' 2016-07-13 11:24:17 -07:00
git-rebase--merge.sh Merge branch 'em/newer-freebsd-shells-are-fine-with-returns' into maint 2016-07-06 13:06:41 -07:00
git-rebase.sh i18n: git-sh-setup.sh: mark strings for translation 2016-06-17 15:45:48 -07:00
git-relink.perl
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'jc/send-email-skip-backup' 2016-07-11 10:31:04 -07:00
git-sh-i18n.sh i18n: rebase-interactive: mark here-doc strings for translation 2016-06-17 15:45:48 -07:00
git-sh-setup.sh Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
git-stash.sh i18n: git-sh-setup.sh: mark strings for translation 2016-06-17 15:45:48 -07:00
git-submodule.sh Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
git-svn.perl git-svn: clone: Fail on missing url argument 2016-07-03 06:04:47 +00:00
git-web--browse.sh
git.c
git.rc
gpg-interface.c gpg-interface: check gpg signature creation status 2016-06-17 17:03:57 -07:00
gpg-interface.h
graph.c Merge branch 'js/log-to-diffopt-file' 2016-07-19 13:22:15 -07:00
graph.h pretty: pass graph width to pretty formatting for use in '%>|(N)' 2016-06-16 11:43:36 -07:00
grep.c Merge branch 'rs/xdiff-hunk-with-func-line' into maint 2016-06-27 09:56:24 -07:00
grep.h
hashmap.c
hashmap.h
help.c t0006: skip "far in the future" test when unsigned long is not long enough 2016-07-15 09:05:53 -07:00
help.h
hex.c hex: add oid_to_hex_r() 2016-06-28 11:39:02 -07:00
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c Merge branch 'ep/http-curl-trace' 2016-07-06 13:38:06 -07:00
http.h Merge branch 'ep/http-curl-trace' 2016-07-06 13:38:06 -07:00
ident.c Merge branch 'da/user-useconfigonly' into HEAD 2016-05-18 14:40:05 -07:00
imap-send.c Merge branch 'ep/http-curl-trace' 2016-07-06 13:38:06 -07:00
khash.h
kwset.c
kwset.h
levenshtein.c
levenshtein.h
line-log.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h
ll-merge.c Merge branch 'jc/ll-merge-internal' 2016-05-17 14:38:32 -07:00
ll-merge.h
lockfile.c
lockfile.h
log-tree.c Merge branch 'js/log-to-diffopt-file' 2016-07-19 13:22:15 -07:00
log-tree.h
mailinfo.c
mailinfo.h
mailmap.c Merge branch 'nd/error-errno' 2016-05-17 14:38:28 -07:00
mailmap.h
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c merge-recursive: convert merge_recursive_generic() to object_id 2016-06-28 11:39:02 -07:00
merge-recursive.h merge-recursive: convert merge_recursive_generic() to object_id 2016-06-28 11:39:02 -07:00
merge.c
mergesort.c
mergesort.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c use string_list initializer consistently 2016-06-13 10:37:51 -07:00
notes.h
object.c
object.h
pack-bitmap-write.c
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
pager.c
parse-options-cb.c Merge branch 'jk/parseopt-string-list' into jk/string-list-static-init 2016-06-13 10:37:48 -07:00
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c Merge branch 'lp/typofixes' into maint 2016-05-26 13:17:21 -07:00
pathspec.c pathspec: rename free_pathspec() to clear_pathspec() 2016-06-02 14:09:22 -07:00
pathspec.h pathspec: rename free_pathspec() to clear_pathspec() 2016-06-02 14:09:22 -07:00
pkt-line.c
pkt-line.h
preload-index.c
pretty.c Merge branch 'nd/graph-width-padded' into maint 2016-07-11 10:44:09 -07:00
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c add: add --chmod=+x / --chmod=-x options 2016-06-07 17:43:39 -07:00
ref-filter.c
ref-filter.h
reflog-walk.c reflog: continue walking the reflog past root commits 2016-06-06 15:06:44 -07:00
reflog-walk.h
refs.c
refs.h refs.h: fix misspelt "occurred" in a comment 2016-06-10 14:53:32 -07:00
remote-curl.c
remote-testsvn.c
remote.c Merge branch 'nd/remote-plural-ours-plus-theirs' into maint 2016-05-26 13:17:18 -07:00
remote.h
replace_object.c
rerere.c Merge branch 'jc/rerere-multi' 2016-05-23 14:54:38 -07:00
rerere.h
resolve-undo.c
resolve-undo.h
revision.c Merge branch 'mj/log-show-signature-conf' 2016-07-11 10:31:08 -07:00
revision.h
run-command.c run-command: add pipe_command helper 2016-06-17 17:03:56 -07:00
run-command.h run-command: add pipe_command helper 2016-06-17 17:03:56 -07:00
send-pack.c send-pack: use buffered I/O to talk to pack-objects 2016-06-08 16:02:40 -07:00
send-pack.h
sequencer.c Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
sequencer.h
server-info.c
setup.c i18n: setup: mark strings for translation 2016-06-17 15:45:48 -07:00
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c Merge branch 'nd/worktree-various-heads' 2016-05-23 14:54:29 -07:00
sha1_name.c
shallow.c
shell.c
shortlog.h shortlog: support outputting to streams other than stdout 2016-06-24 14:25:49 -07:00
show-index.c
sideband.c Merge branch 'lf/recv-sideband-cleanup' 2016-07-19 13:22:14 -07:00
sideband.h sideband.c: make send_sideband() return void 2016-06-16 11:40:19 -07:00
sigchain.c
sigchain.h
split-index.c
split-index.h
strbuf.c
strbuf.h Merge branch 'pb/strbuf-read-file-doc' into maint 2016-07-06 13:06:45 -07:00
streaming.c
streaming.h
string-list.c
string-list.h
submodule-config.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
submodule-config.h submodule-config: keep shallow recommendation around 2016-05-27 10:40:45 -07:00
submodule.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
submodule.h Merge branch 'jk/submodule-c-credential' 2016-05-17 14:38:25 -07:00
symlinks.c
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c i18n: transport-helper.c: change N_() call to _() 2016-06-17 15:45:49 -07:00
transport.c i18n: transport: mark strings for translation 2016-06-17 15:45:48 -07:00
transport.h
tree-diff.c Merge branch 'jk/avoid-unbounded-alloca' into maint 2016-07-06 13:06:39 -07:00
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c unpack-trees: fix English grammar in do-this-before-that messages 2016-06-27 08:29:36 -07:00
unpack-trees.h
update_unicode.sh
upload-pack.c Merge branch 'jk/upload-pack-hook' 2016-07-06 13:38:11 -07:00
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c userdiff: add built-in pattern for CSS 2016-06-03 14:45:56 -07:00
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c Merge branch 'nd/worktree-cleanup-post-head-protection' 2016-07-06 13:38:11 -07:00
worktree.h
wrap-for-bin.sh
wrapper.c Merge branch 'sb/submodule-parallel-fetch' 2016-07-19 13:22:15 -07:00
write_or_die.c write_or_die: remove the unused write_or_whine() function 2016-06-10 10:54:27 -07:00
ws.c
wt-status.c Merge branch 'bc/cocci' 2016-07-19 13:22:16 -07:00
wt-status.h
xdiff-interface.c xdiff: don't trim common tail with -W 2016-05-31 13:08:56 -07:00
xdiff-interface.h
zlib.c

README.md

Git - fast, scalable, distributed revision control system

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>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at http://news.gmane.org/gmane.comp.version-control.git/, http://marc.info/?l=git and other archival sites.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

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):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • "goddamn idiotic truckload of sh*t": when it breaks