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Don't assume that pressures are always positive

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When planning a dive, the dive could use more gas than is in the cylinder.
So getting a negative end pressure is a useful indication to the user that
there plan might not be a good one.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2014-05-29 13:13:11 -07:00
parent 45725d1c30
commit 56395b3894
5 changed files with 7 additions and 7 deletions
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2
dive.h
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@ -68,7 +68,7 @@ typedef struct
const char *description; /* "integrated", "belt", "ankle" */
} weightsystem_t;
extern int get_pressure_units(unsigned int mb, const char **units);
extern int get_pressure_units(int mb, const char **units);
extern double get_depth_units(int mm, int *frac, const char **units);
extern double get_volume_units(unsigned int ml, int *frac, const char **units);
extern double get_temp_units(unsigned int mk, const char **units);