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common: Add new function strlist_rev.
* common/strlist.c (strlist_rev): New function. * common/t-strlist.c: New file. * common/Makefile.am (common_sources): Add strlist.c and strlist.h. (module_tests): Add t-strlist. (t_strlist_LDADD): New variable. -- Signed-off-by: Neal H. Walfield <neal@g10code.com>
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4 changed files with 106 additions and 2 deletions
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@ -231,3 +231,22 @@ strlist_length (strlist_t list)
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return i;
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}
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/* Reverse the list *LIST in place. */
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strlist_t
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strlist_rev (strlist_t *list)
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{
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strlist_t l = *list;
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strlist_t lrev = NULL;
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while (l)
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{
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strlist_t tail = l->next;
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l->next = lrev;
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lrev = l;
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l = tail;
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}
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*list = lrev;
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return lrev;
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}
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