Struct copies

[Stanislav Blinov]

On Tuesday, 28 January 2014 at 01:39:47 UTC, bearophile wrote:
> Stanislav Blinov:
>
>> Generally though, pure code generation issues aside, that is 
>> one very strange swap function, bearophile :)
>
> What's strange on this?
>
>
> void swap(T)(ref T x, ref T y) pure nothrow {
>     immutable aux = x;
>     x = y;
>     y = aux;
> }

Won't swap references or pointers (due to immutable) or structs 
with disabled postblit (due to assignment). Solution to first is 
simple: immutable -> auto. Second would basically require you to 
perform memcpy manually anyway.