Fixed code generation for global functions (and added a test).

src/Generator/Generators/CLI/CLITextTemplate.cs

@@ -81,9 +81,15 @@ namespace CppSharp.Generators.CLI
 
         public string QualifiedIdentifier(Declaration decl)
         {
+            var ids = new List<string>();
+
             if (Options.GenerateLibraryNamespace)
-                return string.Format("{0}::{1}", Options.OutputNamespace, decl.QualifiedName);
+                ids.Add(Options.OutputNamespace);
-            return string.Format("{0}", decl.QualifiedName);
+
+            if (!string.IsNullOrWhiteSpace(decl.QualifiedName))
+                ids.Add(decl.QualifiedName);
+
+            return string.Join("::", ids);
         }
 
         public string GetMethodName(Method method)

src/Generator/Generators/CSharp/CSharpTextTemplate.cs

@@ -231,7 +231,7 @@ namespace CppSharp.Generators.CSharp
             if (context.HasFunctions)
             {
                 PushBlock(CSharpBlockKind.Functions);
-                WriteLine("public unsafe partial class {0}{1}", Options.OutputNamespace,
+                WriteLine("public unsafe partial class {0}",
                     TranslationUnit.FileNameWithoutExtension);
                 WriteStartBraceIndent();
 

tests/Basic/Basic.Tests.cs

@@ -234,5 +234,12 @@ public class BasicTests : GeneratorTestFixture
         Assert.AreEqual(2, (int)@class);
         Assert.AreEqual(3, (short)@class);
     }
+
+    [Test]
+    public void TestFunctions()
+    {
+        var ret = Basic.basic.Function();
+        Assert.That(ret, Is.EqualTo(5));
+    }
 }
  

tests/Basic/Basic.h

@@ -334,3 +334,9 @@ public:
 	operator int() { return 2; }
 	operator short() { return 3; }
 };
+
+// Tests global static function generation
+DLL_API int Function()
+{
+    return 5;
+}