TryParseUInt64D()

static bool System.Buffers.Text.Utf8Parser.TryParseUInt64D ( ReadOnlySpan< byte > source, out ulong value, out int bytesConsumed )

inlinestaticprivate

Definition at line 2670 of file Utf8Parser.cs.

    {
        if (!source.IsEmpty)
        {
            nuint num = (uint)(source[0] - 48);
            if ((uint)num <= 9)
            {
                ulong num2 = num;
                int i = 1;
                if (source.Length < 20)
                {
                    for (; (uint)i < (uint)source.Length; i++)
                    {
                        nuint num3 = (uint)(source[i] - 48);
                        if ((uint)num3 > 9)
                        {
                            break;
                        }
                        num2 = num2 * 10 + num3;
                    }
                }
                else
                {
                    while ((uint)i < (uint)source.Length)
                    {
                        nuint num4 = (uint)(source[i] - 48);
                        if ((uint)num4 > 9)
                        {
                            break;
                        }
                        i++;
                        if (num2 < 1844674407370955161L)
                        {
                            num2 = num2 * 10 + num4;
                            continue;
                        }
                        if (num2 == 1844674407370955161L && (uint)num4 <= 5)
                        {
                            num2 = 18446744073709551610uL + (ulong)num4;
                            continue;
                        }
                        goto IL_00c0;
                    }
                }
                bytesConsumed = i;
                value = num2;
                return true;
            }
        }
        goto IL_00c0;
        IL_00c0:
        bytesConsumed = 0;
        value = 0uL;
        return false;
    }

References System.L, System.source, and System.value.

Referenced by System.Buffers.Text.Utf8Parser.TryParse().