rust/src/test/compile-fail/issue-6804.rs

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2016-10-26 16:38:18 -05:00
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![feature(rustc_attrs)]
#![feature(slice_patterns)]
#![allow(dead_code)]
#![deny(illegal_floating_point_constant_pattern)]
// Matching against NaN should result in a warning
use std::f64::NAN;
#[rustc_error]
fn main() {
let x = NAN;
match x {
NAN => {}, //~ ERROR floating point constants cannot be used
//~| WARNING hard error
_ => {},
};
match [x, 1.0] {
[NAN, _] => {}, //~ ERROR floating point constants cannot be used
//~| WARNING hard error
_ => {},
};
}