Fixed the generated C# when having a field of type char*.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/Std.cs

@@ -90,7 +90,7 @@ namespace std
         }
     }
 
-    public unsafe partial class _Alloc_construct
+    public unsafe partial class _Has_no_alloc_construct_tag
     {
         [StructLayout(LayoutKind.Explicit, Size = 0)]
         public partial struct Internal
@@ -98,7 +98,7 @@ namespace std
         }
     }
 
-    public unsafe partial class _Alloc_destroy
+    public unsafe partial class _Has_no_alloc_destroy_tag
     {
         [StructLayout(LayoutKind.Explicit, Size = 0)]
         public partial struct Internal

src/CppParser/Bindings/CSharp/x86_64-linux-gnu/Std.cs

@@ -170,7 +170,7 @@ namespace std
             {
                 get
                 {
-                    return ((Internal*) __Instance)->_M_p;
+                    return (sbyte*) ((Internal*) __Instance)->_M_p;
                 }
 
                 set

src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/Std.cs

@@ -90,7 +90,7 @@ namespace std
         }
     }
 
-    public unsafe partial class _Alloc_construct
+    public unsafe partial class _Has_no_alloc_construct_tag
     {
         [StructLayout(LayoutKind.Explicit, Size = 0)]
         public partial struct Internal
@@ -98,7 +98,7 @@ namespace std
         }
     }
 
-    public unsafe partial class _Alloc_destroy
+    public unsafe partial class _Has_no_alloc_destroy_tag
     {
         [StructLayout(LayoutKind.Explicit, Size = 0)]
         public partial struct Internal

src/CppParser/Parser.cpp

@@ -3172,8 +3172,11 @@ AST::Expression* Parser::WalkExpression(clang::Expr* Expr)
     case Stmt::ImplicitCastExprClass:
         return WalkExpression(cast<CastExpr>(Expr)->getSubExprAsWritten());
     case Stmt::CXXOperatorCallExprClass:
+    {
+        auto OperatorCallExpr = cast<CXXOperatorCallExpr>(Expr);
         return new AST::Expression(GetStringFromStatement(Expr), StatementClass::CXXOperatorCallExpr,
-            WalkDeclaration(cast<CXXOperatorCallExpr>(Expr)->getCalleeDecl()));
+            OperatorCallExpr->getCalleeDecl() ? WalkDeclaration(OperatorCallExpr->getCalleeDecl()) : 0);
+    }
     case Stmt::CXXConstructExprClass:
     case Stmt::CXXTemporaryObjectExprClass:
     {

src/Generator/Generators/CSharp/CSharpSources.cs

@@ -1143,7 +1143,9 @@ namespace CppSharp.Generators.CSharp
                 {
                     var final = field.Type.GetFinalPointee().Desugar();
                     if (final.IsPrimitiveType() && !final.IsPrimitiveType(PrimitiveType.Void) &&
-                        !final.IsPrimitiveType(PrimitiveType.Char))
+                        (!final.IsPrimitiveType(PrimitiveType.Char) ||
+                         (!Driver.Options.MarshalCharAsManagedChar &&
+                          !((PointerType) field.Type).QualifiedPointee.Qualifiers.IsConst)))
                         @return = string.Format("({0}*) {1}", field.Type.GetPointee().Desugar(), @return);
                 }
                 WriteLine("return {0};", @return);