chore: use cmp (#568)

This commit is contained in:
UUBulb
2024-12-08 20:21:35 +08:00
committed by GitHub
parent 96b254a7b1
commit 2bc3d38b83
6 changed files with 10 additions and 47 deletions

View File

@@ -145,40 +145,3 @@ func Itoa[T constraints.Integer](i T) string {
return ""
}
}
// From go1.23
// Compare returns
//
// -1 if x is less than y,
// 0 if x equals y,
// +1 if x is greater than y.
//
// For floating-point types, a NaN is considered less than any non-NaN,
// a NaN is considered equal to a NaN, and -0.0 is equal to 0.0.
func Compare[T constraints.Ordered](x, y T) int {
xNaN := isNaN(x)
yNaN := isNaN(y)
if xNaN {
if yNaN {
return 0
}
return -1
}
if yNaN {
return +1
}
if x < y {
return -1
}
if x > y {
return +1
}
return 0
}
// isNaN reports whether x is a NaN without requiring the math package.
// This will always return false if T is not floating-point.
func isNaN[T constraints.Ordered](x T) bool {
return x != x
}