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);
#define FIVE_STARS UTF8_BLACKSTAR UTF8_BLACKSTAR UTF8_BLACKSTAR UTF8_BLACKSTAR UTF8_BLACKSTAR
extern const char *star_strings[];
+#define AIR_PERMILLE 209
+
#endif /* DIVE_H */