/** Retrieve a list of bit offsets
The \p bit_offsets vector is first cleared.
\param[out] bit_offsets A list of bit offsets, in ascending order
*/
void OBBitVec::ToVecInt(std::vector<int> & bit_offsets) const
{
bit_offsets.clear();
bit_offsets.reserve(CountBits());
for (int i = NextBit(-1);i != -1;i = NextBit(i))
bit_offsets.push_back(i);
}
OSCL_EXPORT_REF void BitStreamParser::WriteBits(uint8 numberOfBits, const uint8* data)
{
//This is not the most efficient algorithm, but it is the least complex.
//Treat "data" as an input stream.
BitStreamParser input(const_cast<uint8*>(data), BITS_TO_BYTES(numberOfBits));
//Skip over the unused bits.
input.NextBits(input.BitsLeft() - numberOfBits);
//Loop through each bit to process...
while (numberOfBits)
{
uint8 bitmask = 1 << bitpos;
//READ
uint8 byte = *bytepos;
//MODIFY
byte &= ~(bitmask); //Clear the bit being written.
byte |= (input.ReadBits(1) << bitpos); //Write the bit.
//WRITE
*bytepos = byte;
//Advance the bit pointer
NextBit();
numberOfBits--;
}
}
bit Random::NextBit()
{
return NextBit(0.5);
}
