Use common helper function for the "no cylinder info" case

[ext/subsurface.git] / dive.h

diff --git a/dive.h b/dive.h
index f0808efb47d3bbe19c4efcb004a957fcc9ad9e9c..0549843ab5374cdca86d5be614c40a9017d0a6d8 100644 (file)
--- a/dive.h
+++ b/dive.h
@@ -87,6 +87,8 @@ typedef struct {
        pressure_t start, end, sample_start, sample_end;
 } cylinder_t;
 
+extern int cylinder_none(cylinder_t *cyl);
+
 extern int get_pressure_units(unsigned int mb, const char **units);
 extern double get_depth_units(unsigned int mm, int *frac, const char **units);
 extern double get_volume_units(unsigned int mm, int *frac, const char **units);