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5654ba07c9
Closes #8078 This change is primarily intended to support go 1.21, but as a side-effect requires updating libp2p, which in turn triggers an update of golang.org/x/exp which creates quite a bit of (simple) churn in the slice sorting. This change introduces a new `cmp.Compare` function which can be used to return an integer satisfying the compare interface for slice sorting. In order to continue to support mplex for libp2p, the change references github.com/libp2p/go-libp2p-mplex instead. Please see the PR at https://github.com/libp2p/go-libp2p/pull/2498 for the official usptream comment that indicates official support for mplex being moved to this location. Co-authored-by: Jason Yellick <jason@enya.ai>
58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
/*
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Copyright 2021 Erigon contributors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package cmp
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import (
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"golang.org/x/exp/constraints"
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)
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// InRange - ensure val is in [min,max] range
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func InRange[T constraints.Ordered](min, max, val T) T {
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if min >= val {
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return min
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}
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if max <= val {
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return max
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}
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return val
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}
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func Min[T constraints.Ordered](a, b T) T {
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if a <= b {
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return a
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}
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return b
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}
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func Max[T constraints.Ordered](a, b T) T {
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if a >= b {
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return a
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}
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return b
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}
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func Compare[T constraints.Ordered](a, b T) int {
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switch {
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case a < b:
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return -1
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case a == b:
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return 0
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default:
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return 1
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}
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}
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