Return a const structure by reference.

[Ali Çehreli]

On 10/15/2013 09:28 PM, Agustin wrote:

 > I'm having trouble trying to return a const reference of a structure.
 >
 > public struct Structure {
 > }
 >
 > public class A {
 >      private Structure structure;
 >
 >      this(Structure structure)
 >      {
 >          this.structure = structure;
 >      }
 >
 >      public ref const Structure getStructure() const {

The two consts up there have exactly the same meaning: Even the first 
one qualifies the function (more correctly the implicit 'this' reference).

You want this:

     public ref const(Structure) getStructure() const {

 >          return structure;
 >      }
 > }
 >
 > cannot implicitly convert expression (this.structure) of type
 > const(Structure) to Structure

Ali