verifying unicode locale support

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Hi there,

triggered by the recent questions about sorting, I started digging into my
problems with upper('ä')='ä' when using LC_CTYPE and LANG = de_DE.UTF-8.

I have checked with Java (toUpperCase()) and C (see attached program, might
help others) that my locale is working, but postgres (initdb and postmaster
running with LANG=de_DE.utf8, -E UNICODE) still insists that upper('ä')
equals 'ä'. What else can be wrong?

Mit freundlichem Gruß / With kind regards
Holger Klawitter
- --
lists <at> klawitter <dot> de

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#include <stdio.h>
#include <locale.h>
#include <wchar.h>

int main()
{
if (!setlocale(LC_CTYPE, "")) {
fprintf(stderr, "Can't set the specified locale! "
"Check LANG, LC_CTYPE, LC_ALL.\n");
return 1;
}
wchar_t* text = L"ä";
printf( "is: towupper(%x) = %x\n", text[0], towupper(text[0]) );
return 0;
}
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