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author | Eric Wong <e@80x24.org> | 2019-10-06 23:30:33 (GMT) |
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committer | Junio C Hamano <gitster@pobox.com> | 2019-10-07 01:20:10 (GMT) |
commit | 973d5eea7455e1053842f7474c8ec34755f3525b (patch) | |
tree | 4411e81347bf94abe48b80a8bda6c6e9a28de3cf /t/helper | |
parent | 26b455f21ed7e0c7b0e4e4e69b5ae48545597020 (diff) | |
download | git-973d5eea7455e1053842f7474c8ec34755f3525b.zip git-973d5eea7455e1053842f7474c8ec34755f3525b.tar.gz git-973d5eea7455e1053842f7474c8ec34755f3525b.tar.bz2 |
introduce container_of macro
This macro is popular within the Linux kernel for supporting
intrusive data structures such as linked lists, red-black trees,
and chained hash tables while allowing the compiler to do
type checking.
Later patches will use container_of() to remove the limitation
of "hashmap_entry" being location-dependent. This will complete
the transition to compile-time type checking for the hashmap API.
This macro already exists in our source as "list_entry" in
list.h and making "list_entry" an alias to "container_of"
as the Linux kernel has done is a possibility.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/helper')
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