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Fix: multiplication result converted to larger type

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Technically unlikely to happen, though uint16 * uint16 get promoted to int and
then stored as uint64; similarly uint * uint16 remains uint and gets stored as
uint64. In both cases the value can get truncated before the change to uint64.
This commit is contained in:
Rubidium
2023-05-14 21:13:24 +02:00
committed by rubidium42
parent 4894da67da
commit 4a6fdc8293
1 changed files with 2 additions and 2 deletions
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4
src/cargopacket.cpp
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@@ -180,7 +180,7 @@ void CargoList<Tinst, Tcont>::RemoveFromCache(const CargoPacket *cp, uint count)
{ {
assert(count <= cp->count); assert(count <= cp->count);
this->count -= count; this->count -= count;
this->cargo_days_in_transit -= cp->days_in_transit * count; this->cargo_days_in_transit -= static_cast<uint64_t>(cp->days_in_transit) * count;
} }
/** /**
@@ -192,7 +192,7 @@ template <class Tinst, class Tcont>
void CargoList<Tinst, Tcont>::AddToCache(const CargoPacket *cp) void CargoList<Tinst, Tcont>::AddToCache(const CargoPacket *cp)
{ {
this->count += cp->count; this->count += cp->count;
this->cargo_days_in_transit += cp->days_in_transit * cp->count; this->cargo_days_in_transit += static_cast<uint64_t>(cp->days_in_transit) * cp->count;
} }
/** Invalidates the cached data and rebuilds it. */ /** Invalidates the cached data and rebuilds it. */