Provided by: libfontconfig1-dev_2.13.1-2ubuntu2_amd64 bug


       FcUtf16Len - count UTF-16 encoded chars


       #include <fontconfig/fontconfig.h>

       FcBool FcUtf16Len (FcChar8 *src, FcEndian endian, int len, int *nchar, int *wchar);


       Counts  the  number  of Unicode chars in len bytes of src.  Bytes of src are combined into
       16-bit units according to endian.  Places that count in nchar.  wchar contains 1, 2  or  4
       depending  on  the  number  of bytes needed to hold the largest Unicode char counted.  The
       return value indicates whether string is a well-formed UTF16 string.