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cleanup: fix over-eager Coverity warnings

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Technically get_dive() could return a nullptr. The existing code made sure the
argument passed to get_dive() was one that always would result in a valid dive
pointer being returned. The new code is only slightly less efficient but allows
a static code analysis to easily see that we don't derefence NULL pointers here.

On some level this change is unnecessary. But it's also not wrong.

Fixes CID 354762

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2020-10-24 14:50:59 -07:00
parent e30ba8a8e0
commit 8e330f297e
1 changed files with 4 additions and 2 deletions
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6
core/trip.c
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@ -74,10 +74,12 @@ bool is_trip_before_after(const struct dive *dive, bool before)
{
int idx = get_idx_by_uniq_id(dive->id);
if (before) {
if (idx > 0 && get_dive(idx - 1)->divetrip)
const struct dive *d = get_dive(idx - 1);
if (d && d->divetrip)
return true;
} else {
if (idx < dive_table.nr - 1 && get_dive(idx + 1)->divetrip)
const struct dive *d = get_dive(idx + 1);
if (d && d->divetrip)
return true;
}
return false;