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| author |  Anton Lundin <glance@acc.umu.se> | 2014-11-07 09:04:47 +0100 |
|---|---|---|
| committer |  Dirk Hohndel <dirk@hohndel.org> | 2014-11-07 13:12:22 -0800 |
| commit | 09e8adf54eac5159b393b9a09799663060c01db1 (patch) | |
| tree | 5228b99ba1add478121f790e3c2de0ecaeda687c | |
| parent | 450093df85c38ce33fd23049a77750cf48e03976 (diff) | |
| download | subsurface-09e8adf54eac5159b393b9a09799663060c01db1.tar.gz | |
Convert volume calculations into floating point
The basic problem was that for gases containing more than 2147483648 ml
of nitrogen the calculations overflowed. This changes the code into
using floating point math for that calculation which will be more
accurate to.
Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
| -rw-r--r-- | statistics.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/statistics.c b/statistics.c index 17667f899..9eb029115 100644 --- a/statistics.c +++ b/statistics.c @@ -342,8 +342,8 @@ static void get_gas_parts(struct gasmix mix, volume_t vol, int o2_in_topup, volu return; } - air.mliter = (vol.mliter * (1000 - get_he(&mix) - get_o2(&mix))) / (1000 - o2_in_topup); - he->mliter = (vol.mliter * get_he(&mix)) / 1000; + air.mliter = rint(((double)vol.mliter * (1000 - get_he(&mix) - get_o2(&mix))) / (1000 - o2_in_topup)); + he->mliter = rint(((double)vol.mliter * get_he(&mix)) / 1000.0); o2->mliter += vol.mliter - he->mliter - air.mliter; } |