• d-bugmail puremagic.com (34/34) May 30 2012 http://d.puremagic.com/issues/show_bug.cgi?id=8170
• d-bugmail puremagic.com (16/37) Sep 22 2013 http://d.puremagic.com/issues/show_bug.cgi?id=8170

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=8170

           Summary: Incorrect member initialization in associative array
                    of structs
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: juhonurm gmail.com



---
The code below throws an assert error:

void main()
{
    struct S
    {
        void* ptr = null;

        S opAssign(int)
        {
            assert (ptr is null);
            return this;
        }
    }

    S[int] s;
    s[0] = 0;
}

In an associative array, ptr is not initialized to null before opAssign is
called.

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=8170


Kenji Hara <k.hara.pg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE




 The code below throws an assert error:
 
 void main()
 {
     struct S
     {
         void* ptr = null;
 
         S opAssign(int)
         {
             assert (ptr is null);
             return this;
         }
     }
 
     S[int] s;
     s[0] = 0;
 }
 
 In an associative array, ptr is not initialized to null before opAssign is
 called.

When you call opAssign directly, it would throw RangeError.

     S[int] s;
     s[0].opAssign(0);

So the OP code should also throw RangeError.

*** This issue has been marked as a duplicate of issue 6178 ***

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