On Wednesday, 29 October 2014 at 11:49:59 UTC, John Colvin wrote:
On Wednesday, 29 October 2014 at 10:01:18 UTC, Gareth Foster
wrote:
Hi there,
I'm looking to write a function template that operates only on
value types. Basically I'm looking for an equivalent of
where T: struct
from C# (http://msdn.microsoft.com/en-us/library/d5x73970.aspx)
I was thinking that maybe using
template Foo(T) if (is(T : struct) or is(T: union)) { ... }
or perhaps
template Foo(T) if (!is(T : class)) { ... }
would be correct, but I fear the first may be too limiting
(would simple data types such as int, char etc be allowed
here? I'd guess not.) and the second may be too lax.
Any advice? Am I even going in remotely the right direction?
Thanks.
std.traits.hasIndirections any use for you?
To more complete this:
template Foo(T) if(!hasIndirections!T)
http://dlang.org/phobos/std_traits.html#hasIndirections
