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Prevent overflow in minimum gas calculation

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For the "crazy" long and deep dives in "TestPlan" an overflow happened here.
Rearranged the calculation to have more margin.

Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
This commit is contained in:
Stefan Fuchs 2017-03-18 20:36:46 +01:00 committed by Dirk Hohndel
parent 220d25588f
commit ce420d7720
1 changed files with 2 additions and 2 deletions
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4
core/planner.c
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@ -899,9 +899,9 @@ static void add_plan_to_notes(struct diveplan *diveplan, struct dive *dive, bool
&& dive->dc.divemode == OC && decoMode() != RECREATIONAL) { && dive->dc.divemode == OC && decoMode() != RECREATIONAL) {
/* Calculate minimum gas volume. */ /* Calculate minimum gas volume. */
volume_t mingasv; volume_t mingasv;
mingasv.mliter = lrint(prefs.problemsolvingtime * prefs.bottomsac * prefs.sacfactor / 100.0 mingasv.mliter = lrint(prefs.sacfactor / 100.0 * prefs.problemsolvingtime * prefs.bottomsac
* depth_to_bar(lastbottomdp->depth.mm, dive) * depth_to_bar(lastbottomdp->depth.mm, dive)
+ cyl->deco_gas_used.mliter * prefs.sacfactor / 100.0); + prefs.sacfactor / 100.0 * cyl->deco_gas_used.mliter);
/* Calculate minimum gas pressure for cyclinder. */ /* Calculate minimum gas pressure for cyclinder. */
pressure_t mingasp; pressure_t mingasp;
mingasp.mbar = lrint(isothermal_pressure(&cyl->gasmix, 1.0, mingasp.mbar = lrint(isothermal_pressure(&cyl->gasmix, 1.0,