add Cross and mark as deprecated

anyongjin · anyongjin · commit 7a712543d12b · 2025-06-19T14:14:45.000+08:00
diff --git a/core.go b/core.go
@@ -385,3 +385,8 @@ func (s *Series) Cross(obj2 interface{}) int {
 	}
 	return 0
 }
+
+// Deprecated: use Series.Cross instead
+func Cross(obj1 *Series, obj2 interface{}) int {
+	return obj1.Cross(obj2)
+}

Original file line number	Diff line number	Diff line change
`@@ -385,3 +385,8 @@ func (s *Series) Cross(obj2 interface{}) int {`
`385`	`385`	`}`
`386`	`386`	`return 0`
`387`	`387`	`}`
	`388`	`+`
	`389`	`+// Deprecated: use Series.Cross instead`
	`390`	`+func Cross(obj1 *Series, obj2 interface{}) int {`
	`391`	`+ return obj1.Cross(obj2)`
	`392`	`+}`