src/test/ui/consts/issue-25826.stderr

   1 error[E0277]: can't compare `*const ()` with `*const ()` in const contexts
   2   --> $DIR/issue-25826.rs:3:52
   3    |
   4 LL |     const A: bool = unsafe { id::<u8> as *const () < id::<u16> as *const () };
   5    |                                                    ^ no implementation for `*const () < *const ()` and `*const () > *const ()`
   6    |
   7    = help: the trait `~const PartialOrd` is not implemented for `*const ()`
   8 note: the trait `PartialOrd` is implemented for `*const ()`, but that implementation is not `const`
   9   --> $DIR/issue-25826.rs:3:52
  10    |
  11 LL |     const A: bool = unsafe { id::<u8> as *const () < id::<u16> as *const () };
  12    |                                                    ^
  13
  14 error: aborting due to previous error
  15
  16 For more information about this error, try `rustc --explain E0277`.