I compiled the following program with dmd 2.052 on an Ubuntu 10.10 console.

The following program reads only the first code unit instead of the whole character.

import std.stdio;

void main()
{
    wchar c;         // Please note: same problem with dchar as well
    readf(" %s", &c);
    writeln(c);
}

For example when the input is the character ö (encoded with byte values 195 182 in UTF-8), only the first code unit is read and the output becomes the Unicode character that corresponds to the value of that code unit.

In a sense, the program reads a code unit and outputs it as a code point.

Thank you,
Ali