Function wrap 

pub const fn wrap<Outer, Inner>(val: Inner) -> Outer
where
    Outer: TransparentWrapper<Inner>,

Casts Inner to Outer

Example

use constmuck::wrapper;

#[derive(Debug, PartialEq, constmuck::TransparentWrapper)]
#[repr(transparent)]
pub struct Qux<T>(pub T);


// Casting `u32` to `Qux<u32>`
const VALUE: Qux<u32> = wrapper::wrap(3);

assert_eq!(VALUE, Qux(3));

// the `::<Qux<_>, _>` is required because any type can implement comparison with `Qux`.
assert_eq!(wrapper::wrap::<Qux<_>, _>(3), Qux(3));