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digitalmars.D.bugs - [Issue 6250] New: [CTFE] Crash when swapping two pointers to arrays.

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=6250

           Summary: [CTFE] Crash when swapping two pointers to arrays.
           Product: D
           Version: D1 & D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: ice-on-valid-code
          Severity: major
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: yebblies gmail.com


--- Comment #0 from yebblies <yebblies gmail.com> 2011-07-05 12:36:57 EST ---
void swap(int[]* lhs, int[]* rhs)
{
    *lhs = *rhs;
    *rhs = *lhs;
}

int ctfeSort()
{
     int[][2] x;
     swap(&x[0], &x[1]);
     return 0;
}

void main()
{
    enum x = ctfeSort();
}


Causes a stack overflow with dmd master (2.054)
The same thing happens when using references.


void swap(ref int[] lhs, ref int[] rhs)
{
    lhs = rhs;
    rhs = lhs;
}

int ctfeSort()
{
     int[][2] x;
     swap(x[0], x[1]);
     return 0;
}

void main()
{
    enum x = ctfeSort();
}

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parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=6250


Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla digitalmars.com
         Resolution|                            |FIXED


--- Comment #1 from Walter Bright <bugzilla digitalmars.com> 2011-07-31
12:08:39 PDT ---
https://github.com/D-Programming-Language/dmd/commit/7ef3b2bb9e740df39108957ae5e3b2aa8253d351

https://github.com/D-Programming-Language/dmd/pull/284

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