分支13提交

.gitignore

@@ -134,3 +134,10 @@ Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/95ff4e0647685c25/11_CANWINNIM.ipch
 Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/ec9d75c6b219f9bb/12_ISVALID.ipch
 Alogrithm/Alogrithm/Debug/12_IsValid.obj
 Alogrithm/UnitTest/Debug/UnitTest.tlog/link.16692.delete.1.tlog
+Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/63abd4c80f702728/13_MYATOI.ipch
+Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/d298e620e7fd15b3/13_MYATOI.ipch
+Alogrithm/TestResults/4eb333a8-8da4-4120-8568-f8294d8da0c1/林_MI-1 2021-01-19 18_05_51.coverage
+Alogrithm/TestResults/782f01b2-9860-4fcb-a2b1-8792206abbd6/林_MI-1 2021-01-19 18_03_16.coverage
+Alogrithm/Alogrithm/Debug/13_MyAtoi.obj
+Alogrithm/TestResults/dfc574b2-675e-41d0-bedb-4a260e23f2d6/林_MI-1 2021-01-19 18_06_47.coverage
+Alogrithm/TestResults/e0c4d06b-b5b3-4e26-97b5-dcbc2f1cb01b/林_MI-1 2021-01-19 13_46_44.coverage

Alogrithm/Alogrithm/Alogrithm.vcxproj

@@ -85,7 +85,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <SDLCheck>true</SDLCheck>
+      <SDLCheck>false</SDLCheck>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>false</ConformanceMode>
     </ClCompile>
@@ -143,6 +143,7 @@
     <ClCompile Include="src\10_BinaryTreePaths.cpp" />
     <ClCompile Include="src\11_CanWinNim.cpp" />
     <ClCompile Include="src\12_IsValid.cpp" />
+    <ClCompile Include="src\13_MyAtoi.cpp" />
     <ClCompile Include="src\1_ContainsNearbyDuplicate.cpp" />
     <ClCompile Include="src\2_ExcelSheetColumnTitle.cpp" />
     <ClCompile Include="src\3_bool IsUgly.cpp" />
@@ -158,6 +159,7 @@
     <ClInclude Include="include\10_BinaryTreePaths.h" />
     <ClInclude Include="include\11_CanWinNim.h" />
     <ClInclude Include="include\12_IsValid.h" />
+    <ClInclude Include="include\13_MyAtoi.h" />
     <ClInclude Include="include\1_ContainsNearbyDuplicate.h" />
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h" />
     <ClInclude Include="include\3_bool IsUgly.h" />
@@ -172,6 +174,7 @@
     <None Include="config\10_BinaryTreePaths.ini" />
     <None Include="config\11_CanWinNim.ini" />
     <None Include="config\12_IsValid.ini" />
+    <None Include="config\13_MyAtoi.ini" />
     <None Include="config\1_ContainsNearbyDuplicate.ini" />
     <None Include="config\2_ExcelSheetColumnTiTle.ini" />
     <None Include="config\3_bool IsUgly.ini" />

Alogrithm/Alogrithm/Alogrithm.vcxproj.filters

@@ -63,6 +63,9 @@
     <ClCompile Include="src\12_IsValid.cpp">
       <Filter>源文件\src</Filter>
     </ClCompile>
+    <ClCompile Include="src\13_MyAtoi.cpp">
+      <Filter>源文件\src</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h">
@@ -101,6 +104,9 @@
     <ClInclude Include="include\12_IsValid.h">
       <Filter>头文件\include</Filter>
     </ClInclude>
+    <ClInclude Include="include\13_MyAtoi.h">
+      <Filter>头文件\include</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="config\3_bool IsUgly.ini">
@@ -139,5 +145,8 @@
     <None Include="config\12_IsValid.ini">
       <Filter>资源文件\config</Filter>
     </None>
+    <None Include="config\13_MyAtoi.ini">
+      <Filter>资源文件\config</Filter>
+    </None>
   </ItemGroup>
 </Project>

Alogrithm/Alogrithm/config/13_MyAtoi.ini

@@ -0,0 +1,33 @@
+[Test1]
+input=42
+output=42
+[Test2]
+input=   -42
+output=-42
+[Test3]
+input=4193 with words
+output=4193
+[Test4]
+input=words and 987
+output=0
+[Test5]
+input=-91283472332
+output=-2147483648
+[Test6]
+input=2147483647
+output=2147483647
+[Test7]
+input=2147483648
+output=2147483647
+[Test8]
+input=-2147483648
+output=-21474836478
+[Test9]
+input=-2147483649
+output=-21474836478
+[Test10]
+input=+1231
+output=1231
+[Test11]
+input=      1231
+output=1231

Alogrithm/Alogrithm/include/13_MyAtoi.h

@@ -0,0 +1,3 @@
+#pragma once
+#include <limits.h>
+int MyAtoi(char* s);

Alogrithm/Alogrithm/src/13_MyAtoi.cpp

@@ -0,0 +1,35 @@
+#include "../include/13_MyAtoi.h"
+
+int MyAtoi(char* s) {
+	int Index = 0;//用来遍历字符串s，作为下标使用
+	int flag = 1;//符号标志位，>0则读到正号，<0则读到负号
+	int ret = 0;//用来存放运算的结果，防止溢出
+	while (s[Index] == ' ') {//丢弃无用的开头空格字符
+		Index++;
+	}
+	if (s[Index] == '-') {//读取负号，flag改变
+		flag = -1;
+		Index++;
+	}
+	else if (s[Index] == '+') {//读取正号，flag改变
+		flag = 1;
+		Index++;
+	}
+	else if (s[Index] < '0' || s[Index] > '9') {//如果该字符串中的第一个非空格字符不是一个有效整数字符、
+		return 0;					//字符串为空或字符串仅包含空白字符时，则你的函数不需要进行转换,直接返回0
+	}
+	while ('0' <= s[Index] && s[Index] <= '9') {//遍历0~9的字符，直到遍历完为止
+		ret = ret * 10 + int(s[Index] - '0');//把遍历到的结果转成整数
+		if (ret*10/10 != ret && flag > 0) {//给ret先乘10，再除10，判断是否与原数相等
+			return INT_MAX;					//如果不相等说明溢出，再判断是不是正溢出，返回INT_MAX
+		}
+		else if (ret * 10 / 10 != ret && flag < 0) {//如果是负溢出，返回INT_MIN
+			return INT_MIN;
+		}
+		Index++;
+	}
+	if (flag < 0) {//如果while走完后没有返回值，说明没有溢出，返回相应的值
+		return 0 - ret;
+	}
+	return ret;
+}

Alogrithm/Alogrithm/src/main.cpp

@@ -1,7 +1,9 @@
 #include<stdio.h>
-
+#include "../include/13_MyAtoi.h"
 int main()
 {
-
+	char s[] = "2147483648";
+	printf("%d\n", MyAtoi(s));
+	//printf("%d\n", 2147483647+ 2147483649);
 	return 0;
 }

Alogrithm/UnitTest/UnitTest.cpp

@@ -14,7 +14,7 @@ using namespace Microsoft::VisualStudio::CppUnitTestFramework;
 #define FileName_10 "../Alogrithm/config/10_BinaryTreePaths.ini"
 #define FileName_11 "../Alogrithm/config/11_CanWinNim.ini"
 #define FileName_12 "../Alogrithm/config/12_IsValid.ini"
-
+#define FileName_13 "../Alogrithm/config/13_MyAtoi.ini"
 
 namespace UnitTest
 {
@@ -236,4 +236,21 @@ namespace UnitTest
 			}
 		}
 	};
+	TEST_CLASS(UnitTest_13)
+	{
+		TEST_METHOD(TestMethode1)
+		{
+			char Section_Name[100][10] = { 0 };
+			int  Section_Count = CalcCount(100, Section_Name, FileName_13);
+			char input_char[1024] = { 0 };
+			CString input, output;
+			for (int i = 0; i < Section_Count; i++) {
+				GetPrivateProfileString(Section_Name[i], "input", " ", input.GetBuffer(200), 200, FileName_13);
+				GetPrivateProfileString(Section_Name[i], "output", " ", output.GetBuffer(20), 20, FileName_13);
+				strcpy(input_char, input);
+				int nReal = MyAtoi(input_char);
+				Assert::AreEqual(nReal, _ttoi(output));
+			}
+		}
+	};
 }

Alogrithm/UnitTest/UnitTest.vcxproj

@@ -103,7 +103,7 @@
       <SubSystem>Windows</SubSystem>
       <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <GenerateDebugInformation>DebugFull</GenerateDebugInformation>
-      <AdditionalDependencies>../Alogrithm/Debug/1_ContainsNearbyDuplicate.obj;../Alogrithm/Debug/2_ExcelSheetColumnTitle.obj;../Alogrithm/Debug/3_bool IsUgly.obj;../Alogrithm/Debug/4_IsPalindrome.obj;../Alogrithm/Debug/5_MinDepth.obj;../Alogrithm/Debug/6_ContainsDuplicate.obj;../Alogrithm/Debug/7_MaxDepth.obj;../Alogrithm/Debug/8_HammingWeight.obj;../Alogrithm/Debug/9_AddBinary.obj;../Alogrithm/Debug/10_BinaryTreePaths.obj;../Alogrithm/Debug/11_CanWinNim.obj;../Alogrithm/Debug/12_IsValid.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>../Alogrithm/Debug/1_ContainsNearbyDuplicate.obj;../Alogrithm/Debug/2_ExcelSheetColumnTitle.obj;../Alogrithm/Debug/3_bool IsUgly.obj;../Alogrithm/Debug/4_IsPalindrome.obj;../Alogrithm/Debug/5_MinDepth.obj;../Alogrithm/Debug/6_ContainsDuplicate.obj;../Alogrithm/Debug/7_MaxDepth.obj;../Alogrithm/Debug/8_HammingWeight.obj;../Alogrithm/Debug/9_AddBinary.obj;../Alogrithm/Debug/10_BinaryTreePaths.obj;../Alogrithm/Debug/11_CanWinNim.obj;../Alogrithm/Debug/12_IsValid.obj;../Alogrithm/Debug/13_MyAtoi.obj;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">

Alogrithm/UnitTest/pch.h

@@ -25,6 +25,7 @@
 #include"../Alogrithm/include/10_BinaryTreePaths.h"
 #include"../Alogrithm/include/11_CanWinNim.h"
 #include"../Alogrithm/include/12_IsValid.h"
+#include"../Alogrithm/include/13_MyAtoi.h"
 
 
 int CalcCount(int n, char(*str)[10],const char *FileName);