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@ -20,6 +20,14 @@ void read_fake(const Cow& clone)
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printf("read_fake: %s\n", clone.area_as<char>());
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printf("read_fake: %s\n", clone.area_as<char>());
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}
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}
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void moving_cow(Cow moved)
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{
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auto moved_clone = moved.reinterpret<char>();
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strncpy(&moved_clone, "Ummmm....", moved_clone.size());
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read_fake(moved);
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}
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int main()
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int main()
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{
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{
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Cow real(4096);
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Cow real(4096);
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@ -40,5 +48,10 @@ int main()
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read_fake(real);
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read_fake(real);
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printf("First byte of: real = %x, fake = %x\n", real[0], clone[0]);
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printf("First byte of: real = %x, fake = %x\n", real[0], clone[0]);
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moving_cow(std::move(real)); //moving real is fine
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// <-- real is now dropped. But `clone` still holds Rc to _inner (cow_t).
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printf("First byte of: fake = %x\n", clone[0]);
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read_fake(clone); //clone still functions because of refcount on origin.
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return 0;
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return 0;
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}
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}
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