public void atPut(int offset, boolean value) {
int index = indexFor(offset);
int pos = offset % bitsPerWord;
if (value) {
data[index] = Bits.setNthBit(data[index], pos);
} else {
data[index] = Bits.clearNthBit(data[index], pos);
}
}
public int getElementType() {
return Bits.maskBits(getLayoutHelper() >> LH_ELEMENT_TYPE_SHIFT, 0xFF);
}
public int getLog2ElementSize() {
return Bits.maskBits(getLayoutHelper() >> LH_LOG2_ELEMENT_SIZE_SHIFT, 0xFF);
}
public long getArrayHeaderInBytes() {
return Bits.maskBits(getLayoutHelper() >> LH_HEADER_SIZE_SHIFT, 0xFF);
}
// Accessors
public boolean at(int offset) {
if (Assert.ASSERTS_ENABLED) {
Assert.that(offset >= 0 && offset < size(), "BitMap index out of bounds");
}
return Bits.isSetNthBit(wordFor(offset), offset % bitsPerWord);
}