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# Description The implementation of this function had a few issues before: - It didn't check that the `cp` pointer is actually ahead of the `start` pointer, so `len` could potentially underflow and wrap around, which would be a violation of memory safety - It used `Vec::from_raw_parts` even though the buffer is borrowed, not owned. Although `std::mem::forget` is used later to ensure the destructor doesn't run, there is a risk that the destructor would run if a panic happened during `String::from_utf8_unchecked`, which would lead to a `free()` of a pointer we don't own |
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