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-rw-r--r--core/trip.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/core/trip.h b/core/trip.h
index 51f371589..3a8a2feb7 100644
--- a/core/trip.h
+++ b/core/trip.h
@@ -24,6 +24,8 @@ typedef struct trip_table {
struct dive_trip **trips;
} trip_table_t;
+static const trip_table_t empty_trip_table = { 0, 0, (struct dive_trip **)0 };
+
extern void add_dive_to_trip(struct dive *, dive_trip_t *);
extern struct dive_trip *unregister_dive_from_trip(struct dive *dive);
extern void remove_dive_from_trip(struct dive *dive, struct trip_table *trip_table_arg);