[Issue 9665] Structure constant members can not be initialized if have opAssign

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=9665


rswhite4 at googlemail.com changed:

           What    |Removed                     |Added
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                 CC|                            |rswhite4 at googlemail.com


--- Comment #5 from rswhite4 at googlemail.com 2013-03-09 09:32:56 PST ---
(In reply to comment #3)
> (In reply to comment #2)
> > (In reply to comment #1)
> > > This is unfixable problem, if I'm not mistaken.
> > 
> > What if opAssign is const/inout?
> 
> It would be invoked, but you cannot do any meaningful operation in it.

You can:

import std.stdio;
import std.c.string : memcpy;

struct Foo1 // opAssign is a function
{
   int value;
   void opAssign(int src) const {
       int* ptr = cast(int*) &this.value;
       *ptr = src;
   }
}

struct Boo
{
   const Foo1 f1;

   this(int src)
   {
       f1 = src; // Error!
   }
}

void main() {
    Boo b = Boo(42);
    writeln(b.f1.value); // prints 42
}

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