fixed_bigint/
patch_num_traits.rs

1// Copyright 2021 Google LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15// These should be in num_traits
16pub trait OverflowingShl: Sized {
17    fn overflowing_shl(self, rhs: u32) -> (Self, bool);
18}
19pub trait OverflowingShr: Sized {
20    fn overflowing_shr(self, rhs: u32) -> (Self, bool);
21}
22
23macro_rules! overflowing_shift_impl {
24    ($trait_name:ident, $method:ident, $t:ty) => {
25        impl $trait_name for $t {
26            #[inline]
27            fn $method(self, rhs: u32) -> ($t, bool) {
28                <$t>::$method(self, rhs)
29            }
30        }
31    };
32}
33
34overflowing_shift_impl!(OverflowingShl, overflowing_shl, u8);
35overflowing_shift_impl!(OverflowingShl, overflowing_shl, u16);
36overflowing_shift_impl!(OverflowingShl, overflowing_shl, u32);
37overflowing_shift_impl!(OverflowingShl, overflowing_shl, u64);
38
39overflowing_shift_impl!(OverflowingShr, overflowing_shr, u8);
40overflowing_shift_impl!(OverflowingShr, overflowing_shr, u16);
41overflowing_shift_impl!(OverflowingShr, overflowing_shr, u32);
42overflowing_shift_impl!(OverflowingShr, overflowing_shr, u64);
fixed_bigint/patch_num_traits.rs

fixed_bigint/
patch_num_traits.rs
