public static unsafe byte GetByte(Array array, int index)
{
// Is the array present?
if (array == null)
{
throw new ArgumentNullException("array");
}
// Is it of primitive types?
if (!array.ElementEEType.IsPrimitive)
{
throw new ArgumentException(SR.Arg_MustBePrimArray, "array");
}
// Is the index in valid range of the array?
if (index < 0 || index >= _ByteLength(array))
{
throw new ArgumentOutOfRangeException("index");
fixed(IntPtr *pObj = &array.m_pEEType)
{
byte *pByte = (byte *)Array.GetAddrOfPinnedArrayFromEETypeField(pObj) + index;
return(*pByte);
}
}
public static unsafe void BlockCopy(Array src, int srcOffset,
Array dst, int dstOffset,
int count)
{
if (src == null)
{
throw new ArgumentNullException("src");
}
if (dst == null)
{
throw new ArgumentNullException("dst");
}
RuntimeImports.RhCorElementTypeInfo srcCorElementTypeInfo = src.ElementEEType.CorElementTypeInfo;
nuint uSrcLen = ((nuint)src.Length) << srcCorElementTypeInfo.Log2OfSize;
nuint uDstLen = uSrcLen;
if (!srcCorElementTypeInfo.IsPrimitive)
{
throw new ArgumentException(SR.Arg_MustBePrimArray, "src");
}
if (src != dst)
{
RuntimeImports.RhCorElementTypeInfo dstCorElementTypeInfo = dst.ElementEEType.CorElementTypeInfo;
if (!dstCorElementTypeInfo.IsPrimitive)
{
throw new ArgumentException(SR.Arg_MustBePrimArray, "dst");
}
uDstLen = ((nuint)dst.Length) << dstCorElementTypeInfo.Log2OfSize;
}
if (srcOffset < 0)
{
throw new ArgumentOutOfRangeException(SR.ArgumentOutOfRange_MustBeNonNegInt32, "srcOffset");
}
if (dstOffset < 0)
{
throw new ArgumentOutOfRangeException(SR.ArgumentOutOfRange_MustBeNonNegInt32, "dstOffset");
}
if (count < 0)
{
throw new ArgumentOutOfRangeException(SR.ArgumentOutOfRange_MustBeNonNegInt32, "count");
}
nuint uCount = (nuint)count;
if (uSrcLen < ((nuint)srcOffset) + uCount)
{
throw new ArgumentException(SR.Argument_InvalidOffLen);
}
if (uDstLen < ((nuint)dstOffset) + uCount)
{
throw new ArgumentException(SR.Argument_InvalidOffLen);
}
if (uCount == 0)
{
return;
fixed(IntPtr *pSrcObj = &src.m_pEEType, pDstObj = &dst.m_pEEType)
{
byte *pSrc = (byte *)Array.GetAddrOfPinnedArrayFromEETypeField(pSrcObj) + srcOffset;
byte *pDst = (byte *)Array.GetAddrOfPinnedArrayFromEETypeField(pDstObj) + dstOffset;
Buffer.Memmove(pDst, pSrc, uCount);
}
}
