60
vendor/github.com/prometheus/client_golang/prometheus/internal/almost_equal.go
generated
vendored
Normal file
60
vendor/github.com/prometheus/client_golang/prometheus/internal/almost_equal.go
generated
vendored
Normal file
@@ -0,0 +1,60 @@
|
||||
// Copyright (c) 2015 Björn Rabenstein
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to deal
|
||||
// in the Software without restriction, including without limitation the rights
|
||||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
// copies of the Software, and to permit persons to whom the Software is
|
||||
// furnished to do so, subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in all
|
||||
// copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
// SOFTWARE.
|
||||
//
|
||||
// The code in this package is copy/paste to avoid a dependency. Hence this file
|
||||
// carries the copyright of the original repo.
|
||||
// https://github.com/beorn7/floats
|
||||
package internal
|
||||
|
||||
import (
|
||||
"math"
|
||||
)
|
||||
|
||||
// minNormalFloat64 is the smallest positive normal value of type float64.
|
||||
var minNormalFloat64 = math.Float64frombits(0x0010000000000000)
|
||||
|
||||
// AlmostEqualFloat64 returns true if a and b are equal within a relative error
|
||||
// of epsilon. See http://floating-point-gui.de/errors/comparison/ for the
|
||||
// details of the applied method.
|
||||
func AlmostEqualFloat64(a, b, epsilon float64) bool {
|
||||
if a == b {
|
||||
return true
|
||||
}
|
||||
absA := math.Abs(a)
|
||||
absB := math.Abs(b)
|
||||
diff := math.Abs(a - b)
|
||||
if a == 0 || b == 0 || absA+absB < minNormalFloat64 {
|
||||
return diff < epsilon*minNormalFloat64
|
||||
}
|
||||
return diff/math.Min(absA+absB, math.MaxFloat64) < epsilon
|
||||
}
|
||||
|
||||
// AlmostEqualFloat64s is the slice form of AlmostEqualFloat64.
|
||||
func AlmostEqualFloat64s(a, b []float64, epsilon float64) bool {
|
||||
if len(a) != len(b) {
|
||||
return false
|
||||
}
|
||||
for i := range a {
|
||||
if !AlmostEqualFloat64(a[i], b[i], epsilon) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
13
vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go
generated
vendored
13
vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go
generated
vendored
@@ -201,12 +201,15 @@ func (m *SequenceMatcher) isBJunk(s string) bool {
|
||||
// If IsJunk is not defined:
|
||||
//
|
||||
// Return (i,j,k) such that a[i:i+k] is equal to b[j:j+k], where
|
||||
// alo <= i <= i+k <= ahi
|
||||
// blo <= j <= j+k <= bhi
|
||||
//
|
||||
// alo <= i <= i+k <= ahi
|
||||
// blo <= j <= j+k <= bhi
|
||||
//
|
||||
// and for all (i',j',k') meeting those conditions,
|
||||
// k >= k'
|
||||
// i <= i'
|
||||
// and if i == i', j <= j'
|
||||
//
|
||||
// k >= k'
|
||||
// i <= i'
|
||||
// and if i == i', j <= j'
|
||||
//
|
||||
// In other words, of all maximal matching blocks, return one that
|
||||
// starts earliest in a, and of all those maximal matching blocks that
|
||||
|
||||
Reference in New Issue
Block a user