Changeset: fdf5c347715f for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=fdf5c347715f
Modified Files:
gdk/gdk_cand.c
Branch: default
Log Message:
Add comments.
diffs (77 lines):
diff --git a/gdk/gdk_cand.c b/gdk/gdk_cand.c
--- a/gdk/gdk_cand.c
+++ b/gdk/gdk_cand.c
@@ -543,6 +543,7 @@ canditer_init(struct canditer *ci, BAT *
return cnt;
}
+/* return the next candidate without advancing */
oid
canditer_peek(struct canditer *ci)
{
@@ -567,6 +568,7 @@ canditer_peek(struct canditer *ci)
return o;
}
+/* return the previous candidate */
oid
canditer_prev(struct canditer *ci)
{
@@ -588,6 +590,7 @@ canditer_prev(struct canditer *ci)
return o;
}
+/* return the previous candidate without retreating */
oid
canditer_peekprev(struct canditer *ci)
{
@@ -609,6 +612,7 @@ canditer_peekprev(struct canditer *ci)
return o;
}
+/* return the last candidate */
oid
canditer_last(struct canditer *ci)
{
@@ -627,6 +631,7 @@ canditer_last(struct canditer *ci)
return ci->seq + ci->ncand + ci->noids - 1;
}
+/* return the candidate at the given index */
oid
canditer_idx(struct canditer *ci, BUN p)
{
@@ -658,6 +663,7 @@ canditer_idx(struct canditer *ci, BUN p)
return o + hi;
}
+/* set the index for the next candidate to be returned */
void
canditer_setidx(struct canditer *ci, BUN p)
{
@@ -674,6 +680,7 @@ canditer_setidx(struct canditer *ci, BUN
}
}
+/* reset */
void
canditer_reset(struct canditer *ci)
{
@@ -681,6 +688,9 @@ canditer_reset(struct canditer *ci)
ci->add = 0;
}
+/* return index of given candidate if it occurs; if the candidate does
+ * not occur, if next is set, return index of next larger candidate,
+ * if next is not set, return BUN_NONE */
BUN
canditer_search(struct canditer *ci, oid o, bool next)
{
@@ -775,6 +785,7 @@ canditer_slice(struct canditer *ci, BUN
return virtualize(bn);
}
+/* return the combination of two slices */
BAT *
canditer_slice2(struct canditer *ci, BUN lo1, BUN hi1, BUN lo2, BUN hi2)
{
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