From 279b1e84f1a3b17c22005728181470d5d14d7556 Mon Sep 17 00:00:00 2001
From: "Guoyang2022i@outlook.com" <Guoyang2022i@outlook.com>
Date: Wed, 3 Apr 2024 12:39:32 +0800
Subject: [PATCH 1/2] initialize some variables

---
 source/module_base/test/realarray_test.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/source/module_base/test/realarray_test.cpp b/source/module_base/test/realarray_test.cpp
index 3a988aabdc..cf469c1d7d 100644
--- a/source/module_base/test/realarray_test.cpp
+++ b/source/module_base/test/realarray_test.cpp
@@ -11,7 +11,7 @@
  *     - get the total number of real array created
  *   - Construct
  *     - construct real arrays (3 or 4 dimensions)
- *   - Creat 
+ *   - Creat
  *     - create a real array (3 or 4 dimensions)
  *   - GetSize
  *     - get the total size of a real array
@@ -22,7 +22,7 @@
  *   - GetBound
  *     - get the size of each dimension of a real array
  *   - ArrayEqReal
- *     - set all value of an array to a double float 
+ *     - set all value of an array to a double float
  *   - ArrayEqArray
  *     - equal a realarray to another one
  *   - Parentheses
@@ -43,8 +43,8 @@ class realArrayTest : public testing::Test
 	ModuleBase::realArray a3, a4, b3, b4;
 	double aa = 11.0;
 	double bb = 1.0;
-	int count0;
-	int count1;
+	int count0 = 0;
+	int count1 = 0;
 	const double zero = 0.0;
 };
 

From 56c20ce444eac6ac4f4497a24506fed95b7a4c1c Mon Sep 17 00:00:00 2001
From: "Guoyang2022i@outlook.com" <Guoyang2022i@outlook.com>
Date: Sat, 13 Apr 2024 20:06:14 +0800
Subject: [PATCH 2/2] using [stl vector] replace [new]and[delete], in
 math_ylmreal_test.cpp

---
 source/module_base/test/math_ylmreal_test.cpp | 25 +++++++++----------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/source/module_base/test/math_ylmreal_test.cpp b/source/module_base/test/math_ylmreal_test.cpp
index 13d0bd2b69..45e3bf7a73 100644
--- a/source/module_base/test/math_ylmreal_test.cpp
+++ b/source/module_base/test/math_ylmreal_test.cpp
@@ -5,6 +5,7 @@
 #include"gtest/gtest.h"
 #include<math.h>
 #include "module_psi/psi.h"
+#include <vector>
 
 #define doublethreshold 1e-12
 
@@ -193,19 +194,24 @@ class YlmRealTest : public testing::Test
     void SetUp()
     {
         ylm.create(nylm,ng);
-        dylm = new ModuleBase::matrix[3];
+        std::vector<ModuleBase::matrix> dylm;
+        dylm.resize(3);
         for(int i = 0 ; i < 3 ; ++i)    dylm[i].create(nylm,ng);
-        g = new ModuleBase::Vector3<double>[ng];
+        std::vector<ModuleBase::Vector3<double>> g;
+        g.resize(ng);
         g[0].set(1.0,0.0,0.0);
         g[1].set(0.0,1.0,0.0);
         g[2].set(0.0,0.0,1.0);
         g[3].set(-1.0,-1.0,-1.0);
 
-        rly = new double[nylm];
+        std::vector<double> rly;
+        rly.resize(nylm);
         rlyvector.resize(nylm);
-        rlgy = new double[nylm][3];
+        std::vector<std::vector<double>> rlgy;
+        rlgy.resize(nylm, std::vector<double>(3));
         rlgyvector.resize(nylm,std::vector<double>(3));
-        ref = new double[64*4]{
+
+        std::vector<double> ref = {
             y00(g[0].x, g[0].y, g[0].z),  y00(g[1].x, g[1].y, g[1].z),  y00(g[2].x, g[2].y, g[2].z),  y00(g[3].x, g[3].y, g[3].z),
             y10(g[0].x, g[0].y, g[0].z),  y10(g[1].x, g[1].y, g[1].z),  y10(g[2].x, g[2].y, g[2].z),  y10(g[3].x, g[3].y, g[3].z),
             y11(g[0].x, g[0].y, g[0].z),  y11(g[1].x, g[1].y, g[1].z),  y11(g[2].x, g[2].y, g[2].z),  y11(g[3].x, g[3].y, g[3].z),
@@ -273,14 +279,7 @@ class YlmRealTest : public testing::Test
          } ;
     }
 
-    void TearDown()
-    {
-        delete [] dylm;
-        delete [] g;
-        delete [] ref;
-        delete [] rly;
-        delete [] rlgy;
-    }
+
 };
 
 TEST_F(YlmRealTest,Constructor)