45 lines
976 B
Go
45 lines
976 B
Go
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// Copyright 2023 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package slices
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import "golang.org/x/exp/constraints"
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// min is a version of the predeclared function from the Go 1.21 release.
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func min[T constraints.Ordered](a, b T) T {
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if a < b || isNaN(a) {
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return a
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}
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return b
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}
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// max is a version of the predeclared function from the Go 1.21 release.
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func max[T constraints.Ordered](a, b T) T {
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if a > b || isNaN(a) {
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return a
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}
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return b
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}
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// cmpLess is a copy of cmp.Less from the Go 1.21 release.
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func cmpLess[T constraints.Ordered](x, y T) bool {
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return (isNaN(x) && !isNaN(y)) || x < y
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}
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// cmpCompare is a copy of cmp.Compare from the Go 1.21 release.
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func cmpCompare[T constraints.Ordered](x, y T) int {
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xNaN := isNaN(x)
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yNaN := isNaN(y)
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if xNaN && yNaN {
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return 0
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}
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if xNaN || x < y {
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return -1
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}
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if yNaN || x > y {
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return +1
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}
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return 0
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}
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