Unable to transcode single LF to UTF-32

[Nick]

I seem to be getting an error when I attempt to transcode a single Line
Feed (0x0A) from Xerces' format (XMLCh*) to UTF-32 using TranscodeToStr.

This was initiated from an XML file as I was converting the text nodes.

Here's a boiled-down example:

        XMLCh pStr[2] = {10, 0};
        xercesc::TranscodeToStr transcoder(pStr, "UTF-32");

Attempting to create the transcoder results in an exception with
message:  "invalid multi-byte sequence".

Attempting the same thing with either different or additional input
works:
        XMLCh pStr[3] = {10, 10, 0};
        xercesc::TranscodeToStr transcoder(pStr, "UTF-32");

Attempting the same thing with a different output encoding also works.
        XMLCh pStr[2] = {10, 0};
        xercesc::TranscodeToStr transcoder(pStr, "UTF-8");

I'm using the latest version of Xerces-c (3.1.1), compiled from source
using GCC 4.5.4 and with ICU 50.1.1, on Linux.

Thoughts or suggestions?

Best regards,
Nick