extern(C) vs. extern(Windows)

[Frits van Bommel]

Mike Parker wrote:
> Frits van Bommel wrote:
[snip]
>> ---
>> version(Windows) {
>>     extern(Windows):
>> } else {
>>     extern(C):
>> }
>> ---
[snip]
> 
> As I understand it, you have to do this without the brackets:
> 
> =====================
> version(Windows)
>     extern(Windows):
> else
>     extern(C):
> =====================

The braces are redundant if there's only one thing in them, yes. But 
adding them doesn't change the effect (in other words: you don't _have_ 
to do it without them, but you _can_) and I typically just put them in 
even where they aren't strictly needed. (IMO that makes it clearer what 
exactly is compiled)

> This is how I do it in Derelict and it works fine. The reason I do this 
> is because of the following section from the Attributes documentation:
> 
> =====================
> attribute:        affects all declarations until the next }
>     declaration;
>     declaration;
>     ...
> =====================
> 
> So according to this, wrapping the externs within bracketed version 
> statements should have no effect on declarations following the closing 
> bracket. I haven't tried it with brackets, but if it works then either 
> the implementation or the documentation is wrong.

The braces don't have anything to do with attributes, so you're looking 
in the wrong place. You should have been looking at 
http://www.digitalmars.com/d/version.html, especially the line "No new 
scope is introduced, even if the DeclarationBlock or Statement  is 
enclosed by { }."

That line should probably be something like "affects all declarations 
until the end of the current scope". I've created a bug report: 
http://d.puremagic.com/issues/show_bug.cgi?id=1090