UI restructure: add clone_dive helper

This is kind of the inverse to copy_dive(). Instead of duplicating all the
data that the dive points to, it moves it to a new struct dive and zeroes
out the old one so there are no two sets of pointers to these data.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/dive.h b/dive.h
index 8549296d7..f20a0cff0 100644
--- a/dive.h
+++ b/dive.h
@@ -605,6 +605,7 @@ extern struct dive *alloc_dive(void);
 extern void record_dive(struct dive *dive);
 extern void clear_dive(struct dive *dive);
 extern void copy_dive(struct dive *s, struct dive *d);
+extern struct dive *clone_dive(struct dive *s);
 
 extern struct sample *prepare_sample(struct divecomputer *dc);
 extern void finish_sample(struct divecomputer *dc);