src/test/compile-fail/const-err-multi.rs

   1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![deny(const_err)]
  12
  13 pub const A: i8 = -std::i8::MIN;
  14 //~^ ERROR E0080
  15 //~| ERROR attempt to negate with overflow
  16 //~| ERROR this expression will panic at runtime
  17 //~| ERROR this constant cannot be used
  18 pub const B: i8 = A;
  19 //~^ ERROR const_err
  20 //~| ERROR const_err
  21 pub const C: u8 = A as u8;
  22 //~^ ERROR const_err
  23 //~| ERROR const_err
  24 pub const D: i8 = 50 - A;
  25 //~^ ERROR const_err
  26 //~| ERROR const_err
  27
  28 fn main() {
  29     let _ = (A, B, C, D);
  30 }