Question about wchar[]

[ollie]

I am using wchar[] and find the usage clunky. Am I doing something wrong?

Example:
    // Compiler complains that wchar[] != immutable(char)[]
    wchar[] wstr = "This is a wchar[]";
	
    // Compiler accepts this
    wchar[] wstr = "This is a wchar[]"w.dup;

    // Compiler accepts this
    wchar[] wstr;
    wstr ~= "This is a wchar[]";

If the compiler knows the type in the last example with concatenation, 
shouldn't it be able to figure that out in the first example.

I am using windows and DMD HEAD.

Thanks,
ollie