http://d.puremagic.com/issues/show_bug.cgi?id=10497

           Summary: Opaque structs cannot be dereferenced in pointer to
                    pointer types
           Product: D
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: rejects-valid
          Severity: major
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: andrej.mitrovich@gmail.com


--- Comment #0 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-06-28 11:06:51 PDT ---
-----
module test;

// opaque type
struct S;

void main()
{
    S** s;
    void* ptr;
    *s = cast(S*)ptr;  // pointer assignment, not value assignment
}
-----

$ dmd test.d
> test.d(4): Error: struct test.S unknown size
> test.d(4): Error: struct test.S no size yet for forward reference
> test.d(4): Error: struct test.S unknown size
> test.d(4): Error: struct test.S no size yet for forward reference

The size of the structure does not need to be known since what is being assigned is a memory address. It is not a value assign of the struct.

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--- Comment #1 from github-bugzilla@puremagic.com 2013-08-17 23:06:44 PDT ---
Commits pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/e4ba50055c42f4b0dc67369dfcffd8a1526c7821 add test cases for issues 10497 and 10793

https://github.com/D-Programming-Language/dmd/commit/7a3dd014165c3710ffc4ed9f375d962be7516152 Merge pull request #2466 from hpohl/10793

add test cases for issues 10497 and 10793

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Henning Pohl <henning@still-hidden.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |henning@still-hidden.de
         Resolution|                            |FIXED


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