Adding upstream version 3.10.8.

Signed-off-by: Daniel Baumann <daniel@debian.org>

f3/equal.go

@@ -0,0 +1,37 @@
+// Copyright limiting-factor <limiting-factor@posteo.com>
+// SPDX-License-Identifier: MIT
+
+package f3
+
+import (
+	"time"
+)
+
+type equalConstraint[T any] interface {
+	Equal(T) bool
+	*T
+}
+
+func nilOrEqual[P any, T equalConstraint[P]](a, b T) bool {
+	return (a == nil && b == nil) ||
+		(a != nil && b != nil && a.Equal(*b))
+}
+
+func arrayEqual[P any, T equalConstraint[P]](a, b []T) bool {
+	if len(a) != len(b) {
+		return false
+	}
+
+	for i := 0; i < len(a); i++ {
+		if !nilOrEqual(a[i], b[i]) {
+			return false
+		}
+	}
+
+	return true
+}
+
+func nilOrEqualTimeToDate(a, b *time.Time) bool {
+	return (a == nil && b == nil) ||
+		(a != nil && b != nil && a.Format(time.DateOnly) == b.Format(time.DateOnly))
+}