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-rw-r--r--champlain/champlainmarker.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/champlain/champlainmarker.c b/champlain/champlainmarker.c
index 1ff15a5..8c95930 100644
--- a/champlain/champlainmarker.c
+++ b/champlain/champlainmarker.c
@@ -190,6 +190,8 @@ champlain_marker_new ()
void
champlain_marker_set_position (ChamplainMarker *champlainMarker, gdouble latitude, gdouble longitude)
{
+ g_return_if_fail(CHAMPLAIN_IS_MARKER(champlainMarker));
+
ChamplainMarkerPrivate *priv = CHAMPLAIN_MARKER_GET_PRIVATE (champlainMarker);
priv->lon = longitude;