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Diffstat (limited to 'stringclassifier/internal/sets/sets.go')
-rw-r--r-- | stringclassifier/internal/sets/sets.go | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/stringclassifier/internal/sets/sets.go b/stringclassifier/internal/sets/sets.go new file mode 100644 index 0000000..d06947d --- /dev/null +++ b/stringclassifier/internal/sets/sets.go @@ -0,0 +1,20 @@ +// Copyright 2017 Google Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package sets provides sets for storing collections of unique elements. +package sets + +// present is an empty struct used as the "value" in the map[int], since empty +// structs consume zero bytes (unlike one unnecessary byte per bool). +type present struct{} |