Version 0.0.34. const char* allows null as C# string does, it also immutable like C# string, it should be a better translation for now.

Author: konard

Platform.RegularExpressions.Transformer.CSharpToCpp.Tests/CSharpToCppTransformerTests.cs

@@ -18,7 +18,7 @@ public static void Main(string[] args)
             const string expectedResult = @"class Program
 {
     public:
-    static void Main(char* args[])
+    static void Main(const char* args[])
     {
         printf(""Hello, world!\n"");
     }

Platform.RegularExpressions.Transformer.CSharpToCpp/CSharpToCppTransformer.cs

@@ -132,8 +132,8 @@ public class CSharpToCppTransformer : Transformer
             // void PrintNode(TElement node, StringBuilder sb, int level) override
             (new Regex(@"override ([a-zA-Z0-9 \*\+]+)(\([^\)\r\n]+?\))"), "$1$2 override", null, 0),
             // string
-            // std::string
-            (new Regex(@"(\W)string(\W)"), "$1std::string$2", null, 0),
+            // const char*
+            (new Regex(@"(\W)string(\W)"), "$1const char*$2", null, 0),
             // sbyte
             // std::int8_t
             (new Regex(@"(\W)sbyte(\W)"), "$1std::int8_t$2", null, 0),
@@ -204,8 +204,8 @@ public class CSharpToCppTransformer : Transformer
             // Assert::AreEqual
             (new Regex(@"Assert\.Equal"), "Assert::AreEqual", null, 0),
             // $"Argument {argumentName} is null."
-            // ((std::string)"Argument ").append(argumentName).append(" is null.")
-            (new Regex(@"\$""(?<left>(\\""|[^""\r\n])*){(?<expression>[_a-zA-Z0-9]+)}(?<right>(\\""|[^""\r\n])*)"""), "((std::string)$\"${left}\").append(${expression}).append(\"${right}\")", null, 10),
+            // ((std::string)"Argument ").append(argumentName).append(" is null.").data()
+            (new Regex(@"\$""(?<left>(\\""|[^""\r\n])*){(?<expression>[_a-zA-Z0-9]+)}(?<right>(\\""|[^""\r\n])*)"""), "((std::string)$\"${left}\").append(${expression}).append(\"${right}\").data()", null, 10),
             // $"
             // "
             (new Regex(@"\$"""), "\"", null, 0),

Platform.RegularExpressions.Transformer.CSharpToCpp/Platform.RegularExpressions.Transformer.CSharpToCpp.csproj

@@ -24,7 +24,7 @@
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <LangVersion>latest</LangVersion>
-    <PackageReleaseNotes>std::string is closer by semantic to C# System.String than char*.</PackageReleaseNotes>
+    <PackageReleaseNotes>const char* allows null as C# string does, it also immutable like C# string, it should be a better translation for now.</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup Condition="$(TargetFramework.StartsWith('net4')) AND '$(MSBuildRuntimeType)' == 'Core' AND '$(OS)' != 'Windows_NT'">