// Copyright 2018 PingCAP, 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, // See the License for the specific language governing permissions and // limitations under the License. package set // Float64Set is a float64 set. type Float64Set map[float64]struct{} // NewFloat64Set builds a float64 set. func NewFloat64Set(fs ...float64) Float64Set { x := make(map[float64]struct{}, len(fs)) for _, f := range fs { x[f] = struct{}{} } return x } // Exist checks whether `val` exists in `s`. func (s Float64Set) Exist(val float64) bool { _, ok := s[val] return ok } // Insert inserts `val` into `s`. func (s Float64Set) Insert(val float64) { s[val] = struct{}{} } // Count returns the number in Set s. func (s Float64Set) Count() int { return len(s) }