BOOL CIOInstance::IsOn(UINT io_no, PWORD pCh)
{
UINT nChNo = GetChNo(io_no);
UINT nChData = pCh[nChNo];
UINT nBitPos = GetBitPos(io_no);
UINT nOn = (nChData & GetBitMask(nBitPos));
return (!!nOn);
}//--------------------------------------------------------------
void CIOInstance::SetIO(UINT io_no, BOOL out_on, PWORD pCh)
{
UINT nChNo = GetChNo(io_no);
UINT nBitPos = GetBitPos(io_no);
if(out_on)
pCh[nChNo] |= GetBitMask(nBitPos);
else
pCh[nChNo] &= ~GetBitMask(nBitPos);
}//--------------------------------------------------------------
//---------------------------------------------------------------------------
std::array<int, 2> UEBoolProperty::GetMissingBitsCount(const UEBoolProperty& other) const
{
// If there is no previous bitfield member, just calculate the missing bits.
if (!other.IsValid())
{
return { GetBitPosition(GetBitMask()), -1 };
}
// If both bitfield member belong to the same int, calculate the bit position difference.
if (GetOffset() == other.GetOffset())
{
return { GetBitPosition(GetBitMask()) - GetBitPosition(other.GetBitMask()) - 1, -1 };
}
// If they have different offsets, we need two distances
// |0000...1000|0010...0000|
// 1. ^---^
// 2. ^--^
return { std::numeric_limits<uint32_t>::digits - GetBitPosition(other.GetBitMask()) - 1, GetBitPosition(GetBitMask()) };
}
