public unsafe void Utilities_CanCopyMemoryWithMask()
{
using (var from = new NativeArray <byte>(6, Allocator.Temp))
using (var to = new NativeArray <byte>(6, Allocator.Temp))
using (var mask = new NativeArray <byte>(6, Allocator.Temp))
{
var fromPtr = (byte *)from.GetUnsafePtr();
var toPtr = (byte *)to.GetUnsafePtr();
var maskPtr = (byte *)mask.GetUnsafePtr();
toPtr[0] = 0xff;
toPtr[1] = 0xf0;
toPtr[2] = 0x0f;
toPtr[3] = 0x01;
toPtr[4] = 0x40;
toPtr[5] = 0x00;
fromPtr[0] = 0x00;
fromPtr[1] = 0x01;
fromPtr[2] = 0x12;
fromPtr[3] = 0x10;
fromPtr[4] = 0x88;
fromPtr[5] = 0xC1;
maskPtr[0] = 0xF0;
maskPtr[1] = 0xF0;
maskPtr[2] = 0x0F;
maskPtr[3] = 0x00;
maskPtr[4] = 0xC0;
maskPtr[5] = 0x11;
MemoryHelpers.MemCpyMasked(toPtr, fromPtr, 6, maskPtr);
Assert.That(toPtr[0], Is.EqualTo(0x0F));
Assert.That(toPtr[1], Is.EqualTo(0x00));
Assert.That(toPtr[2], Is.EqualTo(0x02));
Assert.That(toPtr[3], Is.EqualTo(0x01));
Assert.That(toPtr[4], Is.EqualTo(0x80));
Assert.That(toPtr[5], Is.EqualTo(0x01));
}
}