feladat5 almost done, needs unit tests

feladat5/UnitTest1/UnitTest1.vcxproj

@@ -77,6 +77,7 @@
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LinkIncremental>true</LinkIncremental>
+    <IncludePath>C:\Users\danit\Desktop\2026-27-cpp-homework\feladat5\feladat5;$(IncludePath)</IncludePath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <LinkIncremental>true</LinkIncremental>
@@ -142,7 +143,8 @@
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
-      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>C:\Users\danit\Desktop\2026-27-cpp-homework\feladat5\feladat5\x64\Debug;$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>CMyString;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -179,6 +181,11 @@
   <ItemGroup>
     <ClInclude Include="pch.h" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\feladat5\feladat5.vcxproj">
+      <Project>{30d9e2e3-47ad-44f5-b8ba-07a26ba06d5e}</Project>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

feladat5/feladat5.slnx

@@ -3,5 +3,6 @@
     <Platform Name="x64" />
     <Platform Name="x86" />
   </Configurations>
-  <Project Path="feladat5/feladat5.vcxproj" />
+  <Project Path="feladat5/feladat5.vcxproj" Id="30d9e2e3-47ad-44f5-b8ba-07a26ba06d5e" />
+  <Project Path="UnitTest1/UnitTest1.vcxproj" />
 </Solution>

feladat5/feladat5/CMyString.cpp

@@ -1,6 +1,32 @@
 // Tóth Dániel Mátyás | IFPQYY | v1
 #include "CMyString.h"
 #include "CMyStringException.h"
+#include <iostream>
+
+static int strLength(const char* str) {
+	if (str == nullptr)
+	{
+		return 0;
+	}
+	int cnt = 0;
+	while (str[cnt])
+	{
+		cnt++;
+	}
+	return cnt;
+}
+
+static void CopyStr(char* dest, const char* src, size_t length) {
+	if (dest == nullptr || src == nullptr) {
+		throw new bad_exception;
+	}
+	size_t i;
+	for (i = 0; i < length; i++)
+	{
+		dest[i] = src[i];
+	}
+	dest[i] = '\0';
+}
 
 CMyString::CMyString() {
 	m_nDataLength = 0;
@@ -23,20 +49,22 @@ CMyString::CMyString(const char* psz) {
 		m_nAllocLength = m_nDataLength + 1;
 	}
 	m_pchData = new char[m_nAllocLength];
-	int i = 0;
+	CopyStr(m_pchData, psz, m_nDataLength);
-	while (i < m_nAllocLength)
-	{
-		m_pchData[i] = psz[i];
-		i++;
-	}
-	m_pchData[i] = '\0';
 }
-CMyString::CMyString(char ch, size_t repeat = 1) {
+CMyString::CMyString(char ch, size_t repeat) {
-	m_nDataLength = repeat;
+	if (ch == '\0')
-	m_nAllocLength = repeat + 1;
+	{
+		m_nDataLength = 0;
+		m_nAllocLength = 1;
+	}
+	else
+	{
+		m_nDataLength = repeat;
+		m_nAllocLength = repeat + 1;
+	}
 	m_pchData = new char[m_nAllocLength];
 	int i = 0;
-	while (i < repeat)
+	while (i < m_nDataLength)
 	{
 		m_pchData[i] = ch;
 		i++;
@@ -56,55 +84,153 @@ CMyString::CMyString(const CMyString& str) {
 	m_pchData = new char[m_nAllocLength];
 	int i = 0;
 	const char* cont = str.c_str();
-	while (cont[i])
+	while (cont[i]) // will never be a nullptr
 	{
 		m_pchData[i] = cont[i];
 		i++;
 	}
-	m_pchData[i] = '\0';
+	m_pchData[i] = '\0'; //i will never go over nAllocLength
 }
 CMyString::~CMyString() {
 	delete m_pchData;
 }
 size_t CMyString::size() const {
-
+	return m_nDataLength;
 }
 size_t CMyString::capacity() const {
-
+	return m_nDataLength;
 }
 const char* CMyString::c_str() const {
-
+	return m_pchData;
 }
 void CMyString::clear() {
-
+	m_nDataLength = 0;
+	m_pchData[0] = '\0';
 }
 char CMyString::getat(size_t index) const {
-
+	if (index >= m_nDataLength)
+	{
+		throw new CMyStringException(CMyStringException::ErrOutOfRange);
+	}
+	return m_pchData[index];
 }
 void CMyString::setat(size_t index, char ch) {
-
+	if (index >= m_nDataLength)
+	{
+		throw new CMyStringException(CMyStringException::ErrOutOfRange);
+	}
+	if (ch == '\0')
+	{
+		throw new CMyStringException(CMyStringException::ErrInvalidChar);
+	}
+	m_pchData[index] = ch;
 }
 void CMyString::reserve(size_t newcapacity) {
-
+	if (newcapacity < m_nAllocLength)
+	{
+		throw new CMyStringException(CMyStringException::ErrUnexpected);
+	}
+	char* tmp = m_pchData;
+	m_pchData = new char[newcapacity];
+	CopyStr(m_pchData, tmp, m_nDataLength);
+	delete tmp;
 }
 void CMyString::erase(size_t pos, size_t count) {
-
+	if (pos >= m_nDataLength)
+	{
+		throw new CMyStringException(CMyStringException::ErrOutOfRange);
+	}
+	if (pos + count > m_nDataLength)
+	{
+		count = m_nDataLength - pos;
+	}
+	for (size_t i = 0; i < count; i++)
+	{
+		m_pchData[pos + i] = '\0';
+	}
 }
 bool CMyString::empty() const {
 	return m_nDataLength == 0;
 }
 void CMyString::display() const {
-
+	if (!empty())
+	{
+		cout << m_pchData;
+	}
 }
 void CMyString::shrink_to_fill() {
-
+	m_nAllocLength = m_nDataLength + 1;
+	char* tmp = m_pchData;
+	m_pchData = new char[m_nAllocLength];
+	CopyStr(m_pchData, tmp, m_nDataLength);
+	delete tmp;
 }
 void CMyString::reverse() {
-
+	if (!empty())
+	{
+		for (size_t i = 0; i < m_nDataLength / 2; i++)
+		{
+			int j = m_nDataLength - i - 1;
+			char tmp = m_pchData[i];
+			m_pchData[i] = m_pchData[j];
+			m_pchData[j] = tmp;
+		}
+	}
 }
-void CMyString::append(const char* psz, unsigned offset = 0, unsigned count = -0) {
+void CMyString::append(const char* psz, unsigned offset, unsigned count) {
-
+	if (psz == nullptr || psz == m_pchData)
+	{
+		return;
+	}
+	int len = strLength(psz);
+	if (count == ~0)
+	{
+		count = len;
+	}
+	if (len < (count - offset))
+	{
+		throw new CMyStringException(CMyStringException::ErrOutOfRange);
+	}
+	if (count + m_nDataLength > m_nAllocLength)
+	{
+		char* tmp = m_pchData;
+		m_nAllocLength = (count + m_nDataLength) * 2;
+		m_pchData = new char[m_nAllocLength];
+		CopyStr(m_pchData, tmp, m_nDataLength);
+		delete tmp;
+	}
+	int i = m_nDataLength;
+	int j = offset;
+	while (j < count)
+	{
+		m_pchData[i++] = psz[j++];
+	}
+	m_nDataLength = i;
+	m_pchData[i] = '\0';
 }
 CMyString& CMyString::operator=(const CMyString& str) {
-
+	if (m_pchData != str.c_str())
+	{
+		if (!str.empty())
+		{
+			if (str.capacity() > m_nAllocLength)
+			{
+				m_nAllocLength = str.capacity();
+				char* cpy = m_pchData;
+				m_pchData = new char[m_nAllocLength];
+				delete cpy;
+			}
+			CopyStr(m_pchData, str.c_str(), m_nDataLength);
+			m_nDataLength = str.size();
+		}
+		else
+		{
+			m_nDataLength = 0;
+			m_nAllocLength = 1;
+			delete m_pchData;
+			m_pchData = new char[m_nAllocLength];
+			m_pchData[0] = '\0';
+		}
+	}
+	return *this;
 }

feladat5/feladat5/CMyString.h

@@ -19,7 +19,7 @@ public:
 	void display() const;
 	void shrink_to_fill();
 	void reverse();
-	void append(const char* psz, unsigned offset = 0, unsigned count = -0);
+	void append(const char* psz, unsigned offset = 0, unsigned count = ~0);
 	CMyString& operator=(const CMyString& str);
 private:
 	char* m_pchData;

feladat5/feladat5/CMyStringException.cpp

@@ -1,2 +1,36 @@
 // Tóth Dániel Mátyás | IFPQYY | v1
 #include "CMyStringException.h"
+
+static int strLength(const char* str) {
+	if (str == nullptr)
+	{
+		return 0;
+	}
+	int cnt = 0;
+	while (str[cnt])
+	{
+		cnt++;
+	}
+	return cnt;
+}
+
+static void CopyStr(char* dest, const char* src, size_t length) {
+	if (dest == nullptr || src == nullptr) {
+		return;
+	}
+	size_t i;
+	for (i = 0; i < length; i++)
+	{
+		dest[i] = src[i];
+	}
+	dest[i] = '\0';
+}
+
+CMyStringException::CMyStringException(const char* input) {
+	int len = strLength(input);
+	msg = unique_ptr<char[]>(new char[len+1]);
+	CopyStr(msg.get(), input, len);
+}
+const char* CMyStringException::what() {
+	return msg.get();
+}

feladat5/feladat5/CMyStringException.h

@@ -1,9 +1,15 @@
 // Tóth Dániel Mátyás | IFPQYY | v1
 #pragma once
+#include <memory>
+using namespace std;
 class CMyStringException {
 public:
-	CMyStringException(char* input);
+	CMyStringException(const char* input);
 	const char* what(void);
+	static constexpr const char* ErrOutOfRange = "Hiba: index hiba!";
+	static constexpr const char* ErrInvalidChar = "Hiba: érvénytelen karakter!";
+	static constexpr const char* ErrCount = "Hiba: karakterek száma 0!";
+	static constexpr const char* ErrUnexpected = "Hiba: Nem várt hiba!";
 private:
-	char* msg;
+	unique_ptr<char[]> msg;
 };

feladat5/feladat5/feladat5.vcxproj

@@ -17,7 +17,6 @@
       <Configuration>Release</Configuration>
       <Platform>x64</Platform>
     </ProjectConfiguration>
-
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <VCProjectVersion>18.0</VCProjectVersion>
@@ -53,27 +52,24 @@
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
-
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
   </ImportGroup>
-  <ImportGroup Label="Shared" >
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
   </ImportGroup>
-    <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-      <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    </ImportGroup>
-    <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-      <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    </ImportGroup>
-    <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-      <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    </ImportGroup>
-    <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-      <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    </ImportGroup>
-
   <PropertyGroup Label="UserMacros" />
-
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
@@ -84,10 +80,10 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
     <Manifest>
-       <EnableSegmentHeap>true</EnableSegmentHeap>
+      <EnableSegmentHeap>true</EnableSegmentHeap>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -102,10 +98,10 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
     <Manifest>
-       <EnableSegmentHeap>true</EnableSegmentHeap>
+      <EnableSegmentHeap>true</EnableSegmentHeap>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -118,10 +114,10 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
     <Manifest>
-       <EnableSegmentHeap>true</EnableSegmentHeap>
+      <EnableSegmentHeap>true</EnableSegmentHeap>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -136,15 +132,22 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
     <Manifest>
-       <EnableSegmentHeap>true</EnableSegmentHeap>
+      <EnableSegmentHeap>true</EnableSegmentHeap>
     </Manifest>
   </ItemDefinitionGroup>
-
+  <ItemGroup>
-  <ItemGroup></ItemGroup>
+    <ClCompile Include="CMyString.cpp" />
+    <ClCompile Include="CMyStringException.cpp" />
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="CMyString.h" />
+    <ClInclude Include="CMyStringException.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

feladat5/feladat5/feladat5.vcxproj.filters

@@ -14,4 +14,23 @@
       <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
     </Filter>
   </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="main.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="CMyString.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="CMyStringException.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="CMyString.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="CMyStringException.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>