std::ptr::slice_from_raw_parts - Rust
Description: API documentation for the Rust `slice_from_raw_parts` fn in crate `std`.
Keywords: rust, rustlang, rust-lang, slice_from_raw_parts

# [−][src]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.

# Examples

    #![feature(slice_from_raw_parts)]
    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);Run