[Issue 4632] New: Copy constructor not invoked on array reallocation

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4632

           Summary: Copy constructor not invoked on array reallocation
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: druntime
        AssignedTo: sean at invisibleduck.org
        ReportedBy: rsinfu at gmail.com


--- Comment #0 from Shin Fujishiro <rsinfu at gmail.com> 2010-08-12 02:01:24 PDT ---
Struct copy constructor is not invoked on array copy, expansion nor
concatenation; but it should.

-------------------- array_cpctor.d
void main()
{
    auto ss = new S[](1);
    auto ssdup = ss.dup;

    // A copy is created...
    assert(&ss[0] != &ssdup[0]);

    // but the copy constructor is not invoked!
    assert(ssdup[0].copy);  // Assertion failure
}
struct S
{
    bool copy;
    this(this) { copy = true; }
}
--------------------
% dmd -run array_cpctor.d
core.exception.AssertError at array_cpctor(10): Assertion failure
--------------------

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