• Ben Jones (13/13) May 08 2019 I'm trying to write a template function like the below... is it
• Paul Backus (6/20) May 08 2019 void fun(string fieldName, alias p1, alias p2)()

Ben Jones <fake fake.fake> writes:

I'm trying to write a template function like the below... is it 
possible without using string mixins?


void fun( alias(?) field, alias p1, alias p2)()
{
     if(p1.field)
        use(p2.field);
}

called with something like


static foreach( list of fields){
   fun!(field, p1, p2)();
}

I have no idea how to specify the list of fields and I'm not sure 
if alias is the right "type" for the field template parameter.

Paul Backus <snarwin gmail.com> writes:

On Wednesday, 8 May 2019 at 18:01:53 UTC, Ben Jones wrote:
 I'm trying to write a template function like the below... is it 
 possible without using string mixins?


 void fun( alias(?) field, alias p1, alias p2)()
 {
     if(p1.field)
        use(p2.field);
 }

 called with something like


 static foreach( list of fields){
   fun!(field, p1, p2)();
 }

 I have no idea how to specify the list of fields and I'm not 
 sure if alias is the right "type" for the field template 
 parameter.

void fun(string fieldName, alias p1, alias p2)()
{
     if (__traits(getMember, p1, fieldName))
         use(__traits(getMember, p2, fieldName));
}