extract.sh

#!/bin/sh
# Because Gist doesn't support subdirectories...

mkdir -p lib1/src
mkdir -p lib2/src

mv lib1-src-lib.rs lib1/src/lib.rs
mv lib1-Cargo.toml lib1/Cargo.toml
mv lib2-src-lib.rs lib2/src/lib.rs
mv lib2-Cargo.toml lib2/Cargo.toml

lib1-Cargo.toml

[package]
name = "lib1"
version = "0.1.0"
edition = "2018"

[dependencies]
lib2 = { path = "../lib2" }

lib1-src-lib.rs

use lib2::func_name;

pub const ARRAY: [u32; 4] = [0; 4];

pub const A: () = func_name::<{ARRAY.as_ptr()}>();
pub const B: () = func_name::<{ARRAY.as_ptr()}>();

lib2-Cargo.toml

[package]
name = "lib2"
version = "0.1.0"
edition = "2018"

lib2-src-lib.rs

#![feature(const_compare_raw_pointers)]
#![feature(const_generics)]

pub const fn func_name<const X: *const u32>() {}