bit array allocated way too much

data/BitArray.cpp

@@ -40,13 +40,17 @@ static void setBits(int* data, int index, int bits, int value) {
     }
 }
 
+static int getArrayLength(int length, int bits) {
+    return roundUpDivide(length * bits, sizeof(int) * 8);
+}
+
 BitArray::BitArray() : length(0), bits(0), data(nullptr) {
 }
 
 BitArray::BitArray(int length, int bits)
     : length(length), bits(bits), data(nullptr) {
     if(length > 0 && bits > 0) {
-        data = new int[roundUpDivide(length * bits, sizeof(int))];
+        data = new int[getArrayLength(length, bits)];
     }
 }
 
@@ -90,7 +94,7 @@ int BitArray::getInternalByteSize() const {
     if(bits <= 0 || length <= 0) {
         return 0;
     }
-    return roundUpDivide(length * bits, sizeof(int)) * sizeof(int);
+    return getArrayLength(length, bits) * sizeof(int);
 }
 
 void BitArray::fill(int value) {
@@ -100,7 +104,7 @@ void BitArray::fill(int value) {
 }
 
 void BitArray::resize(int newLength, int newBits) {
-    int* newData = new int[roundUpDivide(newLength * newBits, sizeof(int))];
+    int* newData = new int[getArrayLength(newLength, newBits)];
     int end = Math::min(length, newLength);
     for(int i = 0; i < end; i++) {
         setBits(newData, i, newBits, get(i));