Fixed signed integer overflow
(1 << num_bits) was converted to a signed integer that caused an overflow (as num_bits was usually set to 31). It worked fine since the value was later converted back to uint32_t but signed integer overflow is technically an undefined behavior and it was triggering errors in our automated tests.
diff --git a/transcoder/basisu_transcoder.cpp b/transcoder/basisu_transcoder.cpp
index 056767f..558d3cf 100644
--- a/transcoder/basisu_transcoder.cpp
+++ b/transcoder/basisu_transcoder.cpp
@@ -3814,7 +3814,7 @@
assert(num_bits < 32);
assert(val < (1ULL << num_bits));
- uint32_t mask = (1 << num_bits) - 1;
+ uint32_t mask = (1ULL << num_bits) - 1;
while (num_bits)
{
