src/test/compile-fail/const-err-early.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; //~ ERROR const_err
  14 //~^ ERROR this constant cannot be used
  15 //~| ERROR constant evaluation error
  16 pub const B: u8 = 200u8 + 200u8; //~ ERROR const_err
  17 //~^ ERROR this constant cannot be used
  18 pub const C: u8 = 200u8 * 4; //~ ERROR const_err
  19 //~^ ERROR this constant cannot be used
  20 pub const D: u8 = 42u8 - (42u8 + 1); //~ ERROR const_err
  21 //~^ ERROR this constant cannot be used
  22 pub const E: u8 = [5u8][1];
  23 //~^ ERROR const_err
  24
  25 fn main() {
  26     let _a = A;
  27     let _b = B;
  28     let _c = C;
  29     let _d = D;
  30     let _e = E;
  31     let _e = [6u8][1];
  32 }