On 5/5/16 12:10 AM, Erik Smith wrote:
I want to have a struct template auto instantiate when the template
parameters are defaulted or missing. Example:
struct Resource(T=int) {
static auto create() {return Resource(null);}
this(string s) {}
}
auto resource = Resource.create;
As a plain struct it works, but not as a template:
struct Resource { // works
struct Resource() { // fails
struct Resource(T=int) { // fails
At the call site, this works, but I'm hoping for a few less symbols:
auto resource = Resource!().create;
Any ideas?
Instead of static method, use an external factory method:
static auto createResource(T = int)()
{
return Resource!T(null);
}
And I wouldn't bother with making Resource's T have a default, as you'd
still have to instantiate it with Resource!() to get the default.
-Steve
