+extern void flush_dive_info_changes(void);
+extern void save_dives(const char *filename);
+
+static inline unsigned int dive_size(int samples)
+{
+ return sizeof(struct dive) + samples*sizeof(struct sample);
+}
+
+extern struct dive *fixup_dive(struct dive *dive);
+extern struct dive *try_to_merge(struct dive *a, struct dive *b);
+