dcapwell commented on code in PR #264:
URL: https://github.com/apache/cassandra-accord/pull/264#discussion_r2632692763
##########
accord-core/src/main/java/accord/utils/SmallBitSet.java:
##########
@@ -40,29 +40,50 @@ public long bits()
return bits;
}
+ private static long bitSafe(int i)
+ {
+ validateIndex(i);
+ return bit(i);
+ }
+
+ private static void validateIndex(int i)
+ {
+ if (i >= 64 || i < 0)
+ throw new IndexOutOfBoundsException("Unable to access bit " + i +
"; must be between 0 and 63");
+ }
+
+ @Override
public boolean set(int i)
{
- long bit = bit(i);
+ long bit = bitSafe(i);
boolean result = 0 == (bits & bit);
bits |= bit;
return result;
}
@Override
- public void setRange(int from, int to)
+ public void setRange(int fromInclusive, int toExclusive)
{
- bits |= ~(-1L << to) & (-1L << from);
+ validateIndex(fromInclusive);
+ Invariants.requireArgument(fromInclusive <= toExclusive, "from > to
(%s > %s)", fromInclusive, toExclusive);
+ if (fromInclusive == toExclusive)
Review Comment:
not safe it seems; need to keep this logic
```
40: Clear
41: setRange(0, 0)
```
```
Expected :0
Actual :64
```
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