Function std::ptr::slice_from_raw_parts

pub fn slice_from_raw_parts<T>(data: *const T, len: usize) -> *const [T]
🔬 This is a nightly-only experimental API. (slice_from_raw_parts #36925)recently added

Forms a slice from a pointer and a length.

The len argument is the number of elements, not the number of bytes.


use std::ptr;

// create a slice pointer when starting out with a pointer to the first element
let mut x = [5, 6, 7];
let ptr = &mut x[0] as *mut _;
let slice = ptr::slice_from_raw_parts_mut(ptr, 3);
assert_eq!(unsafe { &*slice }[2], 7);

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