sigs.k8s.io/cluster-api-provider-aws@v1.5.5/pkg/internal/tristate/tristate.go (about)

     1  /*
     2  Copyright 2020 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  	http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package tristate
    18  
    19  // withDefault evaluates a pointer to a bool with a default value.
    20  func withDefault(def bool, b *bool) bool {
    21  	if b == nil {
    22  		return def
    23  	}
    24  	return *b
    25  }
    26  
    27  // EqualWithDefault compares two bool pointers using a default value.
    28  func EqualWithDefault(def bool, a *bool, b *bool) bool {
    29  	return withDefault(def, a) == withDefault(def, b)
    30  }