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ulist: add ulist_is_first helper #14

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Mar 14, 2015
Merged

ulist: add ulist_is_first helper #14

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11 changes: 11 additions & 0 deletions include/upipe/ulist.h
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,17 @@ static inline void ulist_init(struct uchain *ulist)
ulist->next = ulist->prev = ulist;
}

/** @This checks if the element is the first of the list.
*
* @param ulist pointer to a ulist
* @param element pointer to element
* @return true if the element is the first
*/
static inline bool ulist_is_first(struct uchain *ulist, struct uchain *element)
{
return element == ulist;
}

/** @This checks if the element is the last of the list.
*
* @param ulist pointer to a ulist
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