123 lines
3.5 KiB
Rust
123 lines
3.5 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(rustc_attrs)]
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#![allow(unused_imports)]
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// Note: the relevant lint pass here runs before some of the constant
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// evaluation below (e.g. that performed by trans and llvm), so if you
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// change this warn to a deny, then the compiler will exit before
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// those errors are detected.
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use std::fmt;
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use std::{i8, i16, i32, i64, isize};
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use std::{u8, u16, u32, u64, usize};
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const VALS_I8: (i8, i8, i8, i8) =
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(-i8::MIN,
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//~^ ERROR attempted to negate with overflow
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i8::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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i8::MAX + 1,
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//~^ ERROR attempted to add with overflow
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i8::MIN * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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const VALS_I16: (i16, i16, i16, i16) =
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(-i16::MIN,
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//~^ ERROR attempted to negate with overflow
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i16::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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i16::MAX + 1,
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//~^ ERROR attempted to add with overflow
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i16::MIN * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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const VALS_I32: (i32, i32, i32, i32) =
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(-i32::MIN,
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//~^ ERROR attempted to negate with overflow
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i32::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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i32::MAX + 1,
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//~^ ERROR attempted to add with overflow
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i32::MIN * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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const VALS_I64: (i64, i64, i64, i64) =
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(-i64::MIN,
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//~^ ERROR attempted to negate with overflow
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i64::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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i64::MAX + 1,
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//~^ ERROR attempted to add with overflow
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i64::MAX * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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const VALS_U8: (u8, u8, u8, u8) =
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(-(u8::MIN as i8) as u8,
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u8::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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u8::MAX + 1,
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//~^ ERROR attempted to add with overflow
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u8::MAX * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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const VALS_U16: (u16, u16, u16, u16) =
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(-(u16::MIN as i16) as u16,
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u16::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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u16::MAX + 1,
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//~^ ERROR attempted to add with overflow
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u16::MAX * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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const VALS_U32: (u32, u32, u32, u32) =
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(-(u32::MIN as i32) as u32,
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u32::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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u32::MAX + 1,
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//~^ ERROR attempted to add with overflow
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u32::MAX * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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const VALS_U64: (u64, u64, u64, u64) =
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(-(u64::MIN as i64) as u64,
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u64::MIN - 1,
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//~^ ERROR attempted to subtract with overflow
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u64::MAX + 1,
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//~^ ERROR attempted to add with overflow
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u64::MAX * 2,
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//~^ ERROR attempted to multiply with overflow
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);
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#[rustc_no_mir] // FIXME #29769 MIR overflow checking is TBD.
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fn main() {
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foo(VALS_I8);
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foo(VALS_I16);
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foo(VALS_I32);
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foo(VALS_I64);
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foo(VALS_U8);
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foo(VALS_U16);
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foo(VALS_U32);
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foo(VALS_U64);
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}
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fn foo<T:fmt::Debug>(x: T) {
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println!("{:?}", x);
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}
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