• Vladimirs Nordholm (11/11) Nov 18 2018 Currently I have something like
• Neia Neutuladh (8/11) Nov 18 2018 If you're doing it often:
• Vladimirs Nordholm (3/15) Nov 18 2018 Ah. Thank you for the example, might use that some other time.
• Jacob Carlborg (5/19) Nov 18 2018 This can be generalized by passing in the version identifier as a string...

Vladimirs Nordholm <v vladde.net> writes:

Currently I have something like

     version (Posix)
     {
         enum foo = "bar";
     }
     else
     {
         enum foo = "baz";
     }

Is there anyway to make it "neater"? Maybe something in one line:

     enum foo = version (Posix) { "posix" } : { "other" } ;

Neia Neutuladh <neia ikeran.org> writes:

On Sun, 18 Nov 2018 17:47:07 +0000, Vladimirs Nordholm wrote:
 Is there anyway to make it "neater"? Maybe something in one line:
 
      enum foo = version (Posix) { "posix" } : { "other" } ;

If you're doing it often:

T ifPosix(T)(T a, T b)
{
  version (Posix) return a; else return b;
}
enum foo = ifPosix("posix", "other");

If it's a one-off thing, though, there's not much you can do.

Vladimirs Nordholm <v vladde.net> writes:

On Sunday, 18 November 2018 at 17:52:21 UTC, Neia Neutuladh wrote:
 On Sun, 18 Nov 2018 17:47:07 +0000, Vladimirs Nordholm wrote:
 Is there anyway to make it "neater"? Maybe something in one 
 line:
 
      enum foo = version (Posix) { "posix" } : { "other" } ;

 If you're doing it often:

 T ifPosix(T)(T a, T b)
 {
   version (Posix) return a; else return b;
 }
 enum foo = ifPosix("posix", "other");

 If it's a one-off thing, though, there's not much you can do.

Ah. Thank you for the example, might use that some other time.

Thanks :)

Jacob Carlborg <doob me.com> writes:

On 2018-11-18 18:52, Neia Neutuladh wrote:
 On Sun, 18 Nov 2018 17:47:07 +0000, Vladimirs Nordholm wrote:
 Is there anyway to make it "neater"? Maybe something in one line:

       enum foo = version (Posix) { "posix" } : { "other" } ;

 
 If you're doing it often:
 
 T ifPosix(T)(T a, T b)
 {
    version (Posix) return a; else return b;
 }
 enum foo = ifPosix("posix", "other");
 
 If it's a one-off thing, though, there's not much you can do.

This can be generalized by passing in the version identifier as a string 
and do a string mixin.

-- 
/Jacob Carlborg