| private static CountLeadingZeroBits ( uint value ) : int | ||
| value | uint | A 32-bit integer. |
| return | int | |
private static int CountLeadingZeroBits(uint value)
{
int k = 0;
if ((value & 0xFFFF0000) == 0)
{
k = 16;
value <<= 16;
}
if ((value & 0xFF000000) == 0)
{
k += 8;
value <<= 8;
}
if ((value & 0xF0000000) == 0)
{
k += 4;
value <<= 4;
}
if ((value & 0xC0000000) == 0)
{
k += 2;
value <<= 2;
}
if ((value & 0x80000000) == 0)
{
k++;
if ((value & 0x40000000) == 0)
return 32;
}
return k;
}
