Wide and Unicode Character Interfaces
All wide and Unicode character interfaces, such as RWWString, RWBasicUString, RWUString, wchar_t, and wchar_t* inserters and extractors, take or produce only UTF-16 encoded characters. If you are using an XML output stream with a wide or Unicode character interface, and you try to insert into the stream a non-UTF-16 character, the stream may produce an incorrect document.
Output Streams
XML output streams convert UTF-16 encoded characters to UTF-8 before passing them on to the underlying data stream, as illustrated in Figure 2.
You may optionally convert your strings to another encoding after extracting them from the XML.
Figure 2 – Wide or Unicode Interfaces to Output Streams
Input Streams
XML input streams convert from UTF-8 to UTF-16 before returning wide or Unicode characters or strings, as illustrated in Figure 3.
You may optionally convert your strings to another encoding after extracting them from the XML.
Figure 3 – Wide or Unicode Interfaces to Input Streams
