Add list iterators over list elements
Address the comments from armink@rt-thread
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@ -278,7 +278,7 @@ rt_inline int rt_slist_isempty(rt_slist_t *l)
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* @head: the head for your single list.
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* @head: the head for your single list.
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*/
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*/
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#define rt_slist_for_each(pos, head) \
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#define rt_slist_for_each(pos, head) \
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for (pos = (head)->next; &pos->next != (head); pos = pos->next)
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for (pos = (head)->next; pos != RT_NULL; pos = pos->next)
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/**
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/**
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* rt_slist_for_each_entry - iterate over single list of given type
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* rt_slist_for_each_entry - iterate over single list of given type
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