memur 0.3.4

Arena storage with bells and whistles.
Documentation 
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#![allow(dead_code)]
/**!

Reinterpret portions of memory as a struct and vice-versa.

*/

#[inline(always)]
pub unsafe fn slice_as_value_ref<T: Sized>(bytes: &[u8]) -> &T {
    std::mem::transmute::<*const u8, &T>(bytes.as_ptr())
}

#[inline(always)]
pub unsafe fn slice_as_value_ref_mut<T: Sized>(bytes: &mut [u8]) -> &mut T {
    std::mem::transmute::<*mut u8, &mut T>(bytes.as_mut_ptr())
}

#[inline(always)]
pub unsafe fn value_as_slice<T: Sized>(val: &T) -> &[u8] {
    let ptr_to_val = std::mem::transmute::<&T, *const u8>(val);
    std::slice::from_raw_parts(ptr_to_val, std::mem::size_of::<T>())
}

#[inline(always)]
pub unsafe fn value_as_mut_slice<T: Sized>(val: &mut T) -> &mut [u8] {
    let ptr_to_val = std::mem::transmute::<&T, *mut u8>(val);
    std::slice::from_raw_parts_mut(ptr_to_val, std::mem::size_of::<T>())
}

pub const fn next_item_aligned_start<T>(previous_item_end: usize) -> usize {
    let align = std::mem::align_of::<T>();
    let padding = (align - (previous_item_end % align)) % align;
    previous_item_end + padding
}