Re: Unicode normalization test broken output

Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> There appear to be several off-by-more-than-one errors in norm_test.c 
> print_wchar_str().  Attached is a patch to fix this (and make the output 
> a bit prettier).  Result afterwards:

I concur that this looks broken and your patch improves it.
But I'm not very happy about the remaining assumption that
we don't have to worry about characters above U+FFFF.  I'd
rather see it allocate 11 bytes per allowed pg_wchar, and
manage the string contents with something like

    p += sprintf(p, "U+%04X ", *s);

An alternative fix would be to start using a PQExpBuffer, but
it's probably not quite worth that.

            regards, tom lane