How can I check the DMD version at compile time?

Question

I can check that DMD compiles the given code with version(DMD){}

, but how can I check which version? (2.66 / 2.65, etc.)

More succinctly, I want to check if a modifier exists @nogc

, and if not, define a dummy one.

I came up with a workaround:

static if(!__traits(compiles, ()@nogc{}))
{
    struct nogc;
}

but is there a better way? for example, even check directly for that particular modifier?

+3

ordahan 29 Sep 14 at 15:39

1 answer

Vladimir Panteleev · Accepted Answer · 2014-09-29T15:42:43+0000

You can use a predefined constant __VERSION__

.

See also std.compiler ( version_major

and version_minor

in particular) for an easier way to use it.

However, a workaround might be a better one. This will allow the code to work correctly even to build the compiler between released versions.