From 83e980976bf7bccf0f9b3a3f61530534c82edf74 Mon Sep 17 00:00:00 2001
From: qydysky <qydysky@foxmail.com>
Date: Sun, 28 Jan 2024 16:39:52 +0800
Subject: [PATCH] 1

---
 slice/Slice.go      | 21 ++++++++++-----------
 slice/Slice_test.go |  8 ++++----
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/slice/Slice.go b/slice/Slice.go
index 88ccbcc..616d271 100644
--- a/slice/Slice.go
+++ b/slice/Slice.go
@@ -160,21 +160,20 @@ func (t *Buf[T]) GetCopyBuf() (buf []T) {
 	return
 }
 
-func DelFront[S ~[]*T, T any](s S, beforeIndex int) S {
-	return s[:copy(s, s[beforeIndex+1:])]
+func DelFront[S ~[]*T, T any](s *S, beforeIndex int) {
+	*s = (*s)[:copy(*s, (*s)[beforeIndex+1:])]
 }
 
-func AddFront[S ~[]*T, T any](s S, t *T) S {
-	s = append(s, nil)
-	s = s[:1+copy(s[1:], s)]
-	s[0] = t
-	return s
+func AddFront[S ~[]*T, T any](s *S, t *T) {
+	*s = append(*s, nil)
+	*s = (*s)[:1+copy((*s)[1:], *s)]
+	(*s)[0] = t
 }
 
-func DelBack[S ~[]*T, T any](s S, fromIndex int) S {
-	return s[:fromIndex]
+func DelBack[S ~[]*T, T any](s *S, fromIndex int) {
+	*s = (*s)[:fromIndex]
 }
 
-func AddBack[S ~[]*T, T any](s S, t *T) S {
-	return append(s, t)
+func AddBack[S ~[]*T, T any](s *S, t *T) {
+	*s = append(*s, t)
 }
diff --git a/slice/Slice_test.go b/slice/Slice_test.go
index e33d55c..f762253 100644
--- a/slice/Slice_test.go
+++ b/slice/Slice_test.go
@@ -89,19 +89,19 @@ func Test3(t *testing.T) {
 	if unsafe.Pointer(&s) != p || cap(s) != 3 || len(s) != 3 {
 		t.Fatal()
 	}
-	s = DelFront(s, 2)
+	DelFront(&s, 2)
 	if unsafe.Pointer(&s) != p || cap(s) != 3 || len(s) != 0 {
 		t.Fatal()
 	}
-	s = AddFront(s, &i)
+	AddFront(&s, &i)
 	if unsafe.Pointer(&s) != p || cap(s) != 3 || len(s) != 1 {
 		t.Fatal()
 	}
-	s = AddBack(s, &i)
+	AddBack(&s, &i)
 	if unsafe.Pointer(&s) != p || cap(s) != 3 || len(s) != 2 {
 		t.Fatal()
 	}
-	s = DelBack(s, 1)
+	DelBack(&s, 1)
 	if unsafe.Pointer(&s) != p || cap(s) != 3 || len(s) != 1 {
 		t.Fatal()
 	}
-- 
2.39.2