http://d.puremagic.com/issues/show_bug.cgi?id=4789
d...@dawgfoto.de changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
CC| |d...@dawgfoto.de
Resolution|FIXED |
--- Comment #2 from d...@dawgfoto.de 2011-01-11 05:44:43 PST ---
import std.traits : hasElaborateAssign;
import std.algorithm : swap;
struct Elem {
~this() {}
}
static assert(hasElaborateAssign!Elem);
void main() {
auto elem = Elem();
swap(elem, elem);
}
----
This bug still exists for structs with elaborate assign.
It throws an "object.Exception: overlapping array copy".
Before changeset 1948 the implementation used memcpy which would have also led
to undefined behavior on some platforms.
Now swap uses _d_arraycopy which throws the overlapping exception.
Proposed fix is to add an "if (lhs !is rhs)" around the struct copy code.
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