public static Int64 operator *(Int64 x, int y)
{
UInt32 hi = (y < 0) ? UInt32.MaxValue : 0;
UInt64 res = UInt64.Multiply(x.lo, (uint)x.hi, (UInt32)y, hi);
return(new Int64(res));
}
public static Int64 operator *(Int64 x, Int64 y)
{
bool sign1 = x.m_hi < 0;
bool sign2 = y.m_hi < 0;
if (sign1)
{
x = -x;
}
if (sign2)
{
y = -y;
}
UInt64 u = UInt64.Multiply(x.m_lo, (uint)x.m_hi, y.m_lo, (uint)y.m_hi);
Int64 result = new Int64(u);
if (sign1 != sign2)
{
return(-result);
}
return(result);
}
public static Int64 operator *(Int64 d1, Int64 d2)
{
bool sign1 = d1.hi < 0;
bool sign2 = d2.hi < 0;
if (sign1)
{
d1.Negate();
}
if (sign2)
{
d2.Negate();
}
UInt64 u = UInt64.Multiply(d1.lo, (uint)d1.hi, d2.lo, (uint)d2.hi);
Int64 result = new Int64(u);
if (sign1 != sign2)
{
result.Negate();
}
return(result);
}
public static UInt64 Add(this UInt64 d, Percentage p)
{
return(d + d.Multiply(p));
}
public static UInt64 Subtract(this UInt64 d, Percentage p)
{
return(d - d.Multiply(p));
}