github.com/erda-project/erda-infra@v1.0.10-0.20240327085753-f3a249292aeb/pkg/math/math.go (about)

     1  // Copyright (c) 2021 Terminus, Inc.
     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  package math
    16  
    17  // AbsInt32 .
    18  func AbsInt32(x int32) int32 {
    19  	y := x >> 31
    20  	return (x ^ y) - y
    21  }
    22  
    23  // AbsInt64 .
    24  func AbsInt64(x int64) int64 {
    25  	y := x >> 63
    26  	return (x ^ y) - y
    27  }