nstd_shared_ptr_get

Function nstd_shared_ptr_get 

Source
#[unsafe(no_mangle)]
pub const extern "C" fn nstd_shared_ptr_get( shared_ptr: &NSTDSharedPtr<'_>, ) -> NSTDAny
Available on crate feature shared_ptr only.
Expand description

Returns an immutable raw pointer to the shared object.

§Parameters:

  • const NSTDSharedPtr *shared_ptr - The shared pointer.

§Returns

NSTDAny ptr - A raw pointer to the shared object.

§Example

use core::ptr::addr_of;
use nstd_sys::{
    alloc::NSTD_ALLOCATOR,
    core::alloc::nstd_core_alloc_layout_new,
    shared_ptr::{nstd_shared_ptr_get, nstd_shared_ptr_new},
};

unsafe {
    let v = u128::MAX;
    let size = core::mem::size_of::<u128>();
    let align = core::mem::align_of::<u128>();
    let layout = nstd_core_alloc_layout_new(size, align).unwrap();
    let shared_ptr = nstd_shared_ptr_new(&NSTD_ALLOCATOR, layout, addr_of!(v).cast()).unwrap();
    assert!(*nstd_shared_ptr_get(&shared_ptr).cast::<u128>() == v);
}