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gsequence: Improve is_end()

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Instead of finding the GSequence, just walk up
the tree and determine if the iter is the end node.

https://bugzilla.gnome.org/show_bug.cgi?id=749583
Signed-off-by: Garrett Regier <garrettregier@gmail.com>
This commit is contained in:
Garrett Regier 2015-05-19 06:20:35 -07:00 committed by Christian Hergert
parent 1249e10b8e
commit c494ae06b7
1 changed files with 10 additions and 6 deletions
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16
glib/gsequence.c
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@ -184,20 +184,24 @@ check_iter_access (GSequenceIter *iter)
static gboolean
is_end (GSequenceIter *iter)
{
GSequence *seq;
GSequenceIter *parent = iter->parent;
if (iter->right)
return FALSE;
if (!iter->parent)
if (!parent)
return TRUE;
if (iter->parent->right != iter)
return FALSE;
while (parent->right == iter)
{
iter = parent;
parent = iter->parent;
seq = get_sequence (iter);
if (!parent)
return TRUE;
}
return seq->end_node == iter;
return FALSE;
}
typedef struct