VS

string5.vcxproj

 <?xml version="1.0" encoding="utf-8"?>
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
       <Configuration>Debug</Configuration>
@@ -14,18 +14,19 @@
     <ProjectGuid>{82AFFF26-CC4E-40EA-9A70-39F4765ABFC0}</ProjectGuid>
     <ProjectGuid>{82AFFF26-CC4E-40EA-9A70-39F4765ABFC0}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>string5</RootNamespace>
     <RootNamespace>string5</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0.17763.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v110</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v110</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   </PropertyGroup>
@@ -47,8 +48,7 @@
   </PropertyGroup>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
     <ClCompile>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;MEMTRACE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;MEMTRACE;%(PreprocessorDefinitions)</PreprocessorDefinitions>

string5.vcxproj.filters

@@ -21,15 +21,15 @@
     <ClInclude Include="memtrace.h">
     <ClInclude Include="memtrace.h">
       <Filter>Header Files</Filter>
       <Filter>Header Files</Filter>
     </ClInclude>
     </ClInclude>
-    <ClInclude Include="string2.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="rendez.h">
     <ClInclude Include="rendez.h">
       <Filter>Header Files</Filter>
       <Filter>Header Files</Filter>
     </ClInclude>
     </ClInclude>
     <ClInclude Include="rendez_u8.h">
     <ClInclude Include="rendez_u8.h">
       <Filter>Header Files</Filter>
       <Filter>Header Files</Filter>
     </ClInclude>
     </ClInclude>
+    <ClInclude Include="string5.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   </ItemGroup>
   <ItemGroup>
   <ItemGroup>
     <ClCompile Include="memtrace.cpp">
     <ClCompile Include="memtrace.cpp">
@@ -38,10 +38,10 @@
     <ClCompile Include="rendez.cpp">
     <ClCompile Include="rendez.cpp">
       <Filter>Source Files</Filter>
       <Filter>Source Files</Filter>
     </ClCompile>
     </ClCompile>
-    <ClCompile Include="string2.cpp">
+    <ClCompile Include="string5.cpp">
       <Filter>Source Files</Filter>
       <Filter>Source Files</Filter>
     </ClCompile>
     </ClCompile>
-    <ClCompile Include="string2_test.cpp">
+    <ClCompile Include="string5_test.cpp">
       <Filter>Source Files</Filter>
       <Filter>Source Files</Filter>
     </ClCompile>
     </ClCompile>
   </ItemGroup>
   </ItemGroup>

string5.vcxproj.user

+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
\ No newline at end of file

string5_test.cpp

@@ -15,7 +15,7 @@
 #include "memtrace.h"     // a standard header-ek után kell lennie
 #include "memtrace.h"     // a standard header-ek után kell lennie
 #include "gtest_lite.h"
 #include "gtest_lite.h"
 #include "string5.h"
 #include "string5.h"
-#if ELKESZUT >= 12 && !defined(CPORTA)
+#if ELKESZULT >= 12 && !defined(CPORTA)
 # include "rendez.h"
 # include "rendez.h"
 #endif
 #endif