[Issue 24436] a array be overwritten when other array be written

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24436

Tim <tim.dlang at t-online.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |regression

--- Comment #8 from Tim <tim.dlang at t-online.de> ---
Unfortunately the second commit has not fixed the problem. It can still be seen
with 3x3 arrays.

import std.stdio, core.memory;

void main()
{
        int[][] array1, array2;
        array1 = new int[][](3,3);
        foreach (row; 0 .. 3)
        {
                foreach (col; 0 .. 3)
                {
                        array1[row][col] = col+row*3;
                }
        }
        GC.collect();
        array2 = new int[][](3,3);
        foreach (row; 0 .. 3)
        {
                foreach (col; 0 .. 3)
                {
                        array2[row][col] = 100+col+row*3;
                }
        }
        writefln("%(%s,%)", array1);
        writefln("%(%s,%)", array2);
}

DMD 2.106.0:
[0, 1, 2],[3, 4, 5],[6, 7, 8]
[100, 101, 102],[103, 104, 105],[106, 107, 108]

DMD 2.107.1:
[100, 101, 102],[103, 104, 105],[6, 7, 8]
[100, 101, 102],[103, 104, 105],[106, 107, 108]

DMD 2.108.0:
[0, 1, 2],[100, 101, 102],[6, 7, 8]
[100, 101, 102],[103, 104, 105],[106, 107, 108]

--