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-rw-r--r--dive.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/dive.c b/dive.c
index 145a01883..00c08ed2d 100644
--- a/dive.c
+++ b/dive.c
@@ -308,13 +308,16 @@ int nr_weightsystems(struct dive *dive)
return nr;
}
-void copy_cylinders(struct dive *s, struct dive *d)
+void copy_cylinders(struct dive *s, struct dive *d, bool used_only)
{
int i;
if (!s || !d)
return;
for (i = 0; i < MAX_CYLINDERS; i++)
- d->cylinder[i] = s->cylinder[i];
+ if (!used_only || cylinder_is_used(s, &s->cylinder[i]))
+ d->cylinder[i] = s->cylinder[i];
+ else
+ memset(&d->cylinder[i], 0, sizeof(cylinder_t));
}
void copy_samples(struct dive *s, struct dive *d)