diff options
| -rw-r--r-- | src/noise.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/noise.cpp b/src/noise.cpp index b918c9936..abd29f3ec 100644 --- a/src/noise.cpp +++ b/src/noise.cpp @@ -130,7 +130,9 @@ s32 PcgRandom::range(s32 min, s32 max) if (max < min) throw PrngException("Invalid range (max < min)"); - u32 bound = max - min + 1; + // We have to cast to s64 because otherwise this could overflow, + // and signed overflow is undefined behavior. + u32 bound = (s64)max - (s64)min + 1; return range(bound) + min; } |