• via Digitalmars-d-bugs (32/32) Nov 16 2014 https://issues.dlang.org/show_bug.cgi?id=13739

via Digitalmars-d-bugs <digitalmars-d-bugs puremagic.com> writes:

https://issues.dlang.org/show_bug.cgi?id=13739

          Issue ID: 13739
           Summary: in CTFE making an array over an array copies the data
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Keywords: CTFE, wrong-code
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody puremagic.com
          Reporter: ag0aep6g gmail.com

bool test()
{
    int[] a1 = [13];
    int[][] a2 = [a1];
    assert(a2[0] is a1); /* passes even in CTFE, weird */
    assert(a2[0].ptr is a1.ptr); /* fails in CTFE */

    a1[0] = 1;
    assert(a2[0][0] == 1); /* fails in CTFE */

    a2[0][0] = 2;
    assert(a1[0] == 2); /* fails in CTFE */

    return true;
}

void main()
{
    version(rt) assert(test());
    version(ct) static assert(test());
}

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