Fix incorrect slice->ptr conversion in slice_from_raw_parts docs
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@ -252,7 +252,7 @@ pub(crate) struct FatPtr<T> {
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///
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/// // create a slice pointer when starting out with a pointer to the first element
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/// let x = [5, 6, 7];
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/// let ptr = &x[0] as *const _;
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/// let ptr = x.as_ptr();
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/// let slice = ptr::slice_from_raw_parts(ptr, 3);
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/// assert_eq!(unsafe { &*slice }[2], 7);
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/// ```
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