Igor Bukanov wrote:
> It seems that a sample UTF32 to UTF8 conversion in
> http://www.unicode.org/Public/PROGRAMS/CVTUTF/ConvertUTF.c
> contains dead code. In particular, the ConvertUTF8toUTF32 method has:
>
> if (ch <= UNI_MAX_UTF32) {
> *target++ = ch;
> } else if (ch > UNI_MAX_UTF32) {
> *target++ = UNI_REPLACEMENT_CHAR;
> } else {
> if (target + 1 >= targetEnd) {
> result = targetExhausted; break;
> }
> ch -= halfBase;
> *target++ = (ch >> halfShift) +
> UNI_SUR_HIGH_START;
> *target++ = (ch & halfMask) + UNI_SUR_LOW_START;
> }
>
> Here the second if condition is exactly opposite to the first if
> condition so the the code after the last else is never executed.
>
> Should it be just replaced by
> if (ch <= UNI_MAX_UTF32) {
> *target++ = ch;
> } else {
> *target++ = UNI_REPLACEMENT_CHAR;
> }
I'd agree with Igor. I also notice that the code in the last "else" seems
rather doing "UTF-8 to UTF->>>16<<<", so I guess that it has been forgotten
in from another piece of code.
_ Marco
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