src/test/ui/consts/write_to_mut_ref_dest.rs

   1 // revisions: stock mut_refs
   2 //[mut_refs] check-pass
   3
   4 #![cfg_attr(mut_refs, feature(const_mut_refs))]
   5
   6 use std::cell::Cell;
   7
   8 const FOO: &u32 = {
   9     let mut a = 42;
  10     {
  11         let b: *mut u32 = &mut a; //[stock]~ ERROR mutable references are not allowed in constants
  12         unsafe { *b = 5; } //[stock]~ ERROR dereferencing raw mutable pointers in constants
  13     }
  14     &{a}
  15 };
  16
  17 fn main() {}