/// <summary>
/// Returns <c>true</c> if and only if the two specified buffers are
/// identical to each other for {@code length} bytes starting at {@code aStartIndex}
/// index for the {@code a} buffer and {@code bStartIndex} index for the {@code b} buffer.
/// A more compact way to express this is:
/// <p />
/// {@code a[aStartIndex : aStartIndex + length] == b[bStartIndex : bStartIndex + length]}
/// </summary>
public static bool Equals(IByteBuffer a, int aStartIndex, IByteBuffer b, int bStartIndex, int length)
{
if (aStartIndex < 0 || bStartIndex < 0 || length < 0)
{
ThrowHelper.ThrowArgumentException_NonNegative();
}
if (a.WriterIndex - length < aStartIndex || b.WriterIndex - length < bStartIndex)
{
return(false);
}
if (a.IsSingleIoBuffer && b.IsSingleIoBuffer)
{
var spanA = a.GetReadableSpan(aStartIndex, length);
var spanB = b.GetReadableSpan(bStartIndex, length);
return(SpanHelpers.SequenceEqual(ref MemoryMarshal.GetReference(spanA), ref MemoryMarshal.GetReference(spanB), length));
}
return(EqualsSlow(a, aStartIndex, b, bStartIndex, length));
}