Re: Multiple return values...

[Simen Kjærås]

On Wed, 14 Mar 2012 20:02:50 +0100, Ary Manzana <a...@esperanto.org.ar>  
wrote:

Here's what you can do in Ruby:
a = 1
b = 2

# Swap the contents
a, b = b, a

Can you do something like that with templates in D, with a nice syntax?

template to(T...) {
    alias T to;
}

auto from(T...)(T t) {
    struct Result { T t; alias t this; }
    return Result( t );
}

void main( ) {
    int a = 3;
    int b = 4;

    to!(a, b) = from(b, a);

    assert( a == 4 );
    assert( b == 3 );
}