...declarations, right?  Now just add alias or typedef in front.

alias int x;
alias void...

...I've always seen alias'es and typedef's as being declerations, only directly of...

...src;
typedef dst = src;

Instead of (or as well as)

alias src dst;
typedef src...

...SOURCE) && !defined(__STRICT_ANSI__)
typedef __darwin_off_t          fpos_t;
#else
typedef __int64_t               fpos...

...place? Currently it's only a weak typedef (extended to other symbols) with some overloading...

...S2 {
    void bar() { printf( "bar\n" ); }
}

typedef int HasFoo;
typedef int HasBar;

template SType( T...

...unified type casting with 'cast';
7) strict 'typedef' and relaxed 'alias';
8) array have 'length...

...of an typedef + alias as illustrated below [1]:

#        alias Consume delegate(char[]) Bar;
#        typedef Bar...

...another approach to the error handler thing:

typedef int error_t;

alias void delegate(string...

...types
typedef char function(DecodeMode,char) DecodeCHandler;
typedef wchar function(DecodeMode,wchar) DecodeWHandler;
typedef dchar...