//@ run-pass #![feature(core_intrinsics)] #![feature(const_heap)] #![feature(const_mut_refs)] use std::intrinsics; const FOO: &i32 = foo(); const FOO_RAW: *const i32 = foo(); const fn foo() -> &'static i32 { let t = unsafe { let i = intrinsics::const_allocate(4, 4) as * mut i32; *i = 20; i }; unsafe { &*t } } fn main() { assert_eq!(*FOO, 20); assert_eq!(unsafe { *FOO_RAW }, 20); }