From ebd76d2df6d34c1e194439e41ab6a797b4d71fee Mon Sep 17 00:00:00 2001
From: charlie <3140647@qq.com>
Date: Tue, 26 Jul 2022 14:15:32 +0800
Subject: [PATCH] abs

---
 mathx/int.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mathx/int.go b/mathx/int.go
index 9574dcc..8766791 100644
--- a/mathx/int.go
+++ b/mathx/int.go
@@ -14,3 +14,10 @@ func Max[T constraints.Ordered](v1, v2 T) T {
 func Min[T constraints.Ordered](v1, v2 T) T {
 	return expr.If(v1 < v2, v1, v2)
 }
+
+
+
+func abs(n int64) int64 {
+	y := n >> 63
+	return (n ^ y) - y
+}