[Issue 10525] New: Struct as key in Associative array ignores value semantics

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10525

           Summary: Struct as key in Associative array ignores value
                    semantics
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: michal.minich at gmail.com


--- Comment #0 from Michal Minich <michal.minich at gmail.com> 2013-07-02 02:06:31 PDT ---
DMD 2.063.2

struct S { char[] str; }

void main ()
{
    auto s1 = S(cast(char[])"abc");
    auto s2 = S(cast(char[])"Xbc");

    // indirect members in structs are compared by value
    assert (s1 != s2);  // ok, structs are compared not equal
    s2.str[0] = 'a';
    assert (s1 == s2);  // ok, structs are compared equal

    // not so in AA
    auto aa = [s1 : 1];

    auto s1aa = s1 in aa;
    assert (s1aa);

    auto s2aa = s2 in aa;
    assert (s2aa);   // fails, but should pass 
                     // s2 should be found in aa the same way as s1
}

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