src/test/ui/consts/const-eval/const_raw_ptr_ops2.rs

   1 #![feature(const_raw_ptr_to_usize_cast, const_raw_ptr_deref)]
   2
   3 fn main() {}
   4
   5 // unconst and fine
   6 const Y: usize = unsafe { 42usize as *const i32 as usize + 1 };
   7 // unconst and bad, will thus error in miri
   8 const Y2: usize = unsafe { &1 as *const i32 as usize + 1 }; //~ ERROR any use of this
   9 //~| WARN this was previously accepted by the compiler but is being phased out
  10 // unconst and fine
  11 const Z: i32 = unsafe { *(&1 as *const i32) };
  12 // unconst and bad, will thus error in miri
  13 const Z2: i32 = unsafe { *(42 as *const i32) }; //~ ERROR any use of this value will cause
  14 //~| WARN this was previously accepted by the compiler but is being phased out
  15 const Z3: i32 = unsafe { *(44 as *const i32) }; //~ ERROR any use of this value will cause
  16 //~| WARN this was previously accepted by the compiler but is being phased out