Added half to the marshalling structures in the C# generator. (#854)

src/Generator/Generators/CSharp/CSharpSources.cs

@@ -637,8 +637,7 @@ namespace CppSharp.Generators.CSharp
                 coreType = arrayType.Type.Desugar();
             // we do not support the primitives below yet because their representation in C# is problematic
             if (coreType.IsPrimitiveType(PrimitiveType.Int128) ||
-                coreType.IsPrimitiveType(PrimitiveType.UInt128) ||
+                coreType.IsPrimitiveType(PrimitiveType.UInt128))
-                coreType.IsPrimitiveType(PrimitiveType.Half))
                 return;
 
             TypePrinterResult retType = TypePrinter.VisitFieldDecl(

src/Generator/Generators/CSharp/CSharpTypePrinter.cs

@@ -514,7 +514,8 @@ namespace CppSharp.Generators.CSharp
                     return GetIntString(primitive, Context.TargetInfo);
                 case PrimitiveType.Int128: return "__int128";
                 case PrimitiveType.UInt128: return "__uint128_t";
-                case PrimitiveType.Half: return "__fp16";
+                case PrimitiveType.Half: return new TypePrinterResult { Type = "fixed byte",
+                    NameSuffix = $"[{Context.TargetInfo.HalfWidth}]"};
                 case PrimitiveType.Float: return "float";
                 case PrimitiveType.Double: return "double";
                 case PrimitiveType.LongDouble: return new TypePrinterResult { Type = "fixed byte",

tests/Common/Common.h

@@ -7,12 +7,6 @@
 #include <string>
 #include <vector>
 
-class TestPrimitiveTypes
-{
-public:
-    long double longDouble;
-};
-
 class DLL_API IgnoredType
 {
     class IgnoredNested