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string_list: add a new function, string_list_remove_duplicates()

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Add a function that deletes duplicate entries from a sorted
string_list.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty
2012-09-12 16:04:45 +02:00
committed by Junio C Hamano
parent eb5f0c7a61
commit 31d5451eed
5 changed files with 60 additions and 0 deletions
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9
Documentation/technical/api-string-list.txt
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@ -30,6 +30,9 @@ member (you need this if you add things later) and you should set the
. Can sort an unsorted list using `sort_string_list`.
. Can remove duplicate items from a sorted list using
`string_list_remove_duplicates`.
. Can remove individual items of an unsorted list using
`unsorted_string_list_delete_item`.
@ -108,6 +111,12 @@ write `string_list_insert(...)->util = ...;`.
Look up a given string in the string_list, returning the containing
string_list_item. If the string is not found, NULL is returned.
`string_list_remove_duplicates`::
Remove all but the first of consecutive entries that have the
same string value. If free_util is true, call free() on the
util members of any items that have to be deleted.
* Functions for unsorted lists only
`string_list_append`::