ConvertToBase64Array()

static unsafe int System.Convert.ConvertToBase64Array ( char * outChars, byte * inData, int offset, int length, bool insertLineBreaks )

inlinestaticprivate

Definition at line 2827 of file Convert.cs.

    {
        int num = length % 3;
        int num2 = offset + (length - num);
        int num3 = 0;
        int num4 = 0;
        fixed (char* ptr = &base64Table[0])
        {
            int i;
            for (i = offset; i < num2; i += 3)
            {
                if (insertLineBreaks)
                {
                    if (num4 == 76)
                    {
                        outChars[num3++] = '\r';
                        outChars[num3++] = '\n';
                        num4 = 0;
                    }
                    num4 += 4;
                }
                outChars[num3] = ptr[(inData[i] & 0xFC) >> 2];
                outChars[num3 + 1] = ptr[((inData[i] & 3) << 4) | ((inData[i + 1] & 0xF0) >> 4)];
                outChars[num3 + 2] = ptr[((inData[i + 1] & 0xF) << 2) | ((inData[i + 2] & 0xC0) >> 6)];
                outChars[num3 + 3] = ptr[inData[i + 2] & 0x3F];
                num3 += 4;
            }
            i = num2;
            if (insertLineBreaks && num != 0 && num4 == 76)
            {
                outChars[num3++] = '\r';
                outChars[num3++] = '\n';
            }
            switch (num)
            {
            case 2:
                outChars[num3] = ptr[(inData[i] & 0xFC) >> 2];
                outChars[num3 + 1] = ptr[((inData[i] & 3) << 4) | ((inData[i + 1] & 0xF0) >> 4)];
                outChars[num3 + 2] = ptr[(inData[i + 1] & 0xF) << 2];
                outChars[num3 + 3] = ptr[64];
                num3 += 4;
                break;
            case 1:
                outChars[num3] = ptr[(inData[i] & 0xFC) >> 2];
                outChars[num3 + 1] = ptr[(inData[i] & 3) << 4];
                outChars[num3 + 2] = ptr[64];
                outChars[num3 + 3] = ptr[64];
                num3 += 4;
                break;
            }
        }
        return num3;
    }

References System.Convert.base64Table, System.length, and System.offset.

Referenced by System.Convert.ToBase64CharArray(), System.Convert.ToBase64String(), and System.Convert.TryToBase64Chars().