Hello,

Today I found that sort returns wrong results in term of special characters:

#include <Core/Core.h>

using namespace Upp;

CONSOLE_APP_MAIN
{
	Vector<WString> vec = { "Zbig", "Ąć", "Ęc", "Ala", "Edward" };
	Sort(vec);
	
	for (const auto s : vec)
	{
		Cout() << s << "\n";
	}
}

The results are:

Ala
Edward
Zbig
Ąć
Ęc

and should be:

Ala
Ąć
Edward
Ęc
Zbig

This is probably corner case, because this world doesn't exist in Polish, but anyway the error is there. I believe it is more serve when these character are in the middle of the string and we have a lot of such words.

Here is the article about Polish alphabet and the order of letters.

Klugier