http://d.puremagic.com/issues/show_bug.cgi?id=1759

           Summary: Closures and With Statements
           Product: D
           Version: 2.009
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P3
         Component: DMD
        AssignedTo: bugzilla@digitalmars.com
        ReportedBy: xnknet@gmail.com


The following code doesn't crash. However, it does print an unexpected value. It should print 90, but instead it prints 4202678.

The bug can be worked around by referencing 'obj' directly.

struct SS{ int a, b, c; }
int delegate() addss(SS obj){
        with(obj) return {
                return a+b+c;
        };
}

void main(){
        SS obj = {15, 30, 45};
        auto l = addss(obj);
        writeln(l()); // Prints unexpected value
}


-- 

http://d.puremagic.com/issues/show_bug.cgi?id=1759


Salih Dincer <salihdb@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |salihdb@hotmail.com
         Resolution|                            |INVALID


--- Comment #1 from Salih Dincer <salihdb@hotmail.com> 2012-08-07 20:56:08 PDT ---
This is not a bug it's a feature,
there's solution:

void main() {
  struct SS {
   int a, b, c;
  }
  int delegate () addss(SS obj){
    return {
      with(obj) return a+b+c;
    };
  }
  addss(SS(7, 10, 60))().writeln("(total numbers 77)");
}

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------

http://d.puremagic.com/issues/show_bug.cgi?id=1759


timon.gehr@gmx.ch changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |timon.gehr@gmx.ch
         Resolution|INVALID                     |


--- Comment #2 from timon.gehr@gmx.ch 2012-08-08 02:05:30 PDT ---
(In reply to comment #1)
> This is not a bug it's a feature,

This can lead to memory corruption in @safe code, therefore it is a bug.

> there's solution:
> 

This is a workaround.

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------

http://d.puremagic.com/issues/show_bug.cgi?id=1759


Don <clugdbug@yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |clugdbug@yahoo.com.au


--- Comment #3 from Don <clugdbug@yahoo.com.au> 2012-08-15 06:36:20 PDT ---
(In reply to comment #1)
> This is not a bug it's a feature,

No, it's a wrong-code bug. This one has been on my to-do list for years now.

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------