Alias template param - Undefined Identifier

[Chris Williams]

On Tuesday, 18 March 2014 at 23:05:51 UTC, bearophile wrote:
> Chris Williams:
>
>> I could put a wrapper around the calls to these functions that 
>> performs this action, but I figured a little macro would be 
>> sufficient for my needs (it's just a little script.)
>
> I suggest to keep the code simpler.
>
> Bye,
> bearophile

I could. I could simply allow the current working directory to 
drift as the application performs operations, but I prefer the 
consistency of knowing that methods I call restore state before I 
continue to the next method. I sense that in the long run it will 
make life easier.

But I also like to know how most-effectively to write a C-style 
macro in D, so it seemed worth checking what the state of the art 
is.