35 lines
1.3 KiB
Protocol Buffer
35 lines
1.3 KiB
Protocol Buffer
// Copyright 2010-2025 Google LLC
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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syntax = "proto3";
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package operations_research;
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option java_package = "com.google.ortools.util";
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option java_multiple_files = true;
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option csharp_namespace = "Google.OrTools.Util";
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// A "three-way" boolean: unspecified, false or true.
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//
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// We don't use the value of 1 to increase the chance to catch bugs: eg. in
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// python, a user may set a proto field of this type enum to a boolean value
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// without type checks, if they set it to True, the proto validity code will
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// catch it (because it'll be cast to 1, which is an invalid enum value).
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// Note that if the user sets if to False (i.e. 0), it will be caught by the
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// routing library's parameter validity check too.
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enum OptionalBoolean {
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BOOL_UNSPECIFIED = 0;
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BOOL_FALSE = 2;
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BOOL_TRUE = 3;
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}
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