> On Aug 8, 2017, at 01:11, Martin R via swift-users <swift-users@swift.org> > wrote: > > SE-0176 Enforce Exclusive Access to Memory > (https://github.com/apple/swift-evolution/blob/master/proposals/0176-enforce-exclusive-access-to-memory.md) > states that "Accesses to different stored properties of a struct or > different elements of a tuple are allowed to overlap." > > [snip] > > Is there anything special with simultaneous access to members of a global > tuple, or is this a bug?
Not a bug. The very next sentence after the one you quoted: “However, note that modifying part of a value type still requires exclusive access to the entire value”. The first example in that section (https://github.com/apple/swift-evolution/blob/master/proposals/0176-enforce-exclusive-access-to-memory.md#value-types) is similar to your example; it trips the dynamic enforcement mechanism for the same reason. The second example shows a possible workaround. Sincerely, Guillaume Lessard _______________________________________________ swift-users mailing list swift-users@swift.org https://lists.swift.org/mailman/listinfo/swift-users
