IndexOf() [4/4]

static int System.SpanHelpers.IndexOf ( ref char searchSpace, int searchSpaceLength, ref char value, int valueLength )

inlinestatic

Definition at line 1621 of file SpanHelpers.cs.

    {
        if (valueLength == 0)
        {
            return 0;
        }
        char value2 = value;
        ref char source = ref Unsafe.Add(ref value, 1);
        int num = valueLength - 1;
        int num2 = searchSpaceLength - num;
        int num3 = 0;
        while (num2 > 0)
        {
            int num4 = IndexOf(ref Unsafe.Add(ref searchSpace, num3), value2, num2);
            if (num4 == -1)
            {
                break;
            }
            num2 -= num4;
            num3 += num4;
            if (num2 <= 0)
            {
                break;
            }
            if (SequenceEqual(ref Unsafe.As<char, byte>(ref Unsafe.Add(ref searchSpace, num3 + 1)), ref Unsafe.As<char, byte>(ref source), (nuint)(uint)num * (nuint)2u))
            {
                return num3;
            }
            num2--;
            num3++;
        }
        return -1;
    }

References System.SpanHelpers.IndexOf(), System.SpanHelpers.SequenceEqual(), System.source, and System.value.