http://d.puremagic.com/issues/show_bug.cgi?id=4893

           Summary: Function pointer assignments ignore constness
           Product: D
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: jmdavisProg@gmx.com


--- Comment #0 from Jonathan M Davis <jmdavisProg@gmx.com> 2010-09-18 17:13:04 PDT ---
Take this program:

struct S
{
public:

    this(int[] function(const int[])func)
    {
        _func = func;
    }

    @property int[] function(const int[]) func()
    {
        return func;
    }

private:
    int[] function(const int[]) _func;
}

int[] add1(int[] num)
{
    return num ~ 1;
}

void main()
{
    auto s = S(&add1);
}

It shouldn't compile, but it does. add1() does not take a const int[] and therefore could theoretically modify its arguments (though it doesn't here), violating the type of the function pointer. Using in and immutable instead of const has the same problem. They compile when they shouldn't.

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--- Comment #1 from Jonathan M Davis <jmdavisProg@gmx.com> 2010-09-18 17:14:59 PDT ---
Oh, there's an error in my example - func return func instead of _func, resulting infinite recursion and therefore a segfault. I could have removed that function for the bug report anyway.

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Sobirari Muhomori <dfj1esp02@sneakemail.com> changed:

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


--- Comment #2 from Sobirari Muhomori <dfj1esp02@sneakemail.com> 2010-10-19 11:03:16 PDT ---
*** This issue has been marked as a duplicate of issue 3797 ***

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