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Codefix: Immediately return invalid rail/road type when looking for label 0. (#13045)

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Looking for label 0 would incorrectly return the first undefined type instead of INVALID_RAIL/ROADTYPE, which could potentially cause incorrect behaviour.
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Peter Nelson 2024-10-31 00:11:16 +00:00 committed by GitHub
parent 9dae626237
commit 552cf72b98
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2 changed files with 4 additions and 0 deletions
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2
src/rail.cpp
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@ -310,6 +310,8 @@ RailTypes GetRailTypes(bool introduces)
*/
RailType GetRailTypeByLabel(RailTypeLabel label, bool allow_alternate_labels)
{
if (label == 0) return INVALID_RAILTYPE;
/* Loop through each rail type until the label is found */
for (RailType r = RAILTYPE_BEGIN; r != RAILTYPE_END; r++) {
const RailTypeInfo *rti = GetRailTypeInfo(r);

2
src/road.cpp
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@ -253,6 +253,8 @@ RoadTypes GetRoadTypes(bool introduces)
*/
RoadType GetRoadTypeByLabel(RoadTypeLabel label, bool allow_alternate_labels)
{
if (label == 0) return INVALID_ROADTYPE;
/* Loop through each road type until the label is found */
for (RoadType r = ROADTYPE_BEGIN; r != ROADTYPE_END; r++) {
const RoadTypeInfo *rti = GetRoadTypeInfo(r);