TryParseHex() [2/3]

static bool System.Guid.TryParseHex ( ReadOnlySpan< char > guidString, out uint result, ref bool overflow )

inlinestaticprivate

Definition at line 601 of file Guid.cs.

    {
        if (guidString.Length != 0)
        {
            if (guidString[0] == '+')
            {
                guidString = guidString.Slice(1);
            }
            if ((uint)guidString.Length > 1u && guidString[0] == '0' && (guidString[1] | 0x20) == 120)
            {
                guidString = guidString.Slice(2);
            }
        }
        int i;
        for (i = 0; i < guidString.Length && guidString[i] == '0'; i++)
        {
        }
        int num = 0;
        uint num2 = 0u;
        for (; i < guidString.Length; i++)
        {
            char c = guidString[i];
            int num3 = HexConverter.FromChar(c);
            if (num3 == 255)
            {
                if (num > 8)
                {
                    overflow = true;
                }
                result = 0u;
                return false;
            }
            num2 = num2 * 16 + (uint)num3;
            num++;
        }
        if (num > 8)
        {
            overflow = true;
        }
        result = num2;
        return true;
    }

References System.HexConverter.FromChar(), System.ReadOnlySpan< T >.Length, and System.ReadOnlySpan< T >.Slice().