public static unsafe bool CheckBit(this INativeStruct self, int startOffset, int bit)
{
var byteOffset = bit / 8;
var bitOffset = bit % 8;
var p = self.Pointer + startOffset + byteOffset;
var mask = 1 << bitOffset;
var val = *(byte *)p.ToPointer();
var masked = val & mask;
return(masked == mask);
}
public static unsafe void SetBit(this INativeStruct self, int startOffset, int bit, bool value)
{
var byteOffset = bit / 8;
var bitOffset = bit % 8;
var p = self.Pointer + startOffset + byteOffset;
var mask = ~(1 << bitOffset);
var ptr = (byte *)p.ToPointer();
var val = *ptr;
var newVal = (byte)(val & mask | ((value ? 1 : 0) << bitOffset));
*ptr = newVal;
}
