github.com/livekit/protocol@v1.16.1-0.20240517185851-47e4c6bba773/utils/math.go (about) 1 // Copyright 2023 LiveKit, 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 utils 16 17 import ( 18 "time" 19 20 "golang.org/x/exp/constraints" 21 ) 22 23 type Numeric interface { 24 constraints.Signed | constraints.Unsigned | time.Duration 25 } 26 27 func Max[T Numeric](vs ...T) T { 28 return Least(func(a, b T) bool { return a > b }, vs...) 29 } 30 31 func Min[T Numeric](vs ...T) T { 32 return Least(func(a, b T) bool { return a < b }, vs...) 33 } 34 35 func Most[T Numeric](less func(a, b T) bool, vs ...T) T { 36 return Least(func(a, b T) bool { return !less(a, b) }, vs...) 37 } 38 39 func Least[T Numeric](less func(a, b T) bool, vs ...T) T { 40 if len(vs) == 0 { 41 return 0 42 } 43 v := vs[0] 44 for i := 1; i < len(vs); i++ { 45 if less(vs[i], v) { 46 v = vs[i] 47 } 48 } 49 return v 50 }