[Issue 5661] New: std.algorithm.move does not work on elaborate struct

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5661

           Summary: std.algorithm.move does not work on elaborate struct
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: k.hara.pg at gmail.com


--- Comment #0 from Kenji Hara <k.hara.pg at gmail.com> 2011-02-27 21:30:08 PST ---
Created an attachment (id=924)
testcase

std.algorithm.move does not work on T that hasElaborateDestructor!T or
hasElaborateCopyConstructor!T.

This test should work.
----
unittest
{
    static struct S
    {
        static struct X
        {
            int n = 0;
            ~this(){n = 0;}
        }
        X x;
    }
    static assert(hasElaborateDestructor!S);
    S s1, s2;
    s1.x.n = 1;
    move(s1, s2);
    assert(s1.x.n == 0);
    assert(s2.x.n == 1);

    static struct T
    {
        static struct X
        {
            int n = 0;
            this(this){n = 0;}
        }
        X x;
    }
    static assert(hasElaborateCopyConstructor!T);
    T t1, t2;
    t1.x.n = 1;
    move(t1, t2);
    assert(t1.x.n == 0);
    assert(t2.x.n == 1);
}
----

See also attached file of full test case.

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