![책임연구원
2010/2011, 마비노기2
2006/2009, 마비노기 영웅전
테크니컬 디렉터
2004/2005, 마비노기
2003/2004, 프로젝트 T2
2001/2003, Oz World
[ɡ̊ɪm̚ ʨæːsɤk̚]
/ɡim ɟɛːzʌɡ/](https://image.slidesharecdn.com/ndc11cc-130522011025-phpapp01/85/NDC-2011-C-C-4-320.jpg)
![Property (cont.)
Indexed property ≠ index operator []
int this[int index]
{
get { return array[index]; }
set { array[index] = value; }
}
VS .NET VS .NET 2003 VS 2005 VS 2008 Rx](https://image.slidesharecdn.com/ndc11cc-130522011025-phpapp01/85/NDC-2011-C-C-15-320.jpg)
![Enumerations
Value types
string[] Enum.GetNames()
TEnum[] Enum.GetValues()
TEnum Enum.Parse(string s)
bool Enum.TryParse(
string s, out TEnum @enum)
TEnum TEnum.MaxValue { get; }
TEnum TEnum.MinValue { get; }
VS .NET VS .NET 2003 VS 2005 VS 2008 Rx](https://image.slidesharecdn.com/ndc11cc-130522011025-phpapp01/85/NDC-2011-C-C-24-320.jpg)
![Partial Classes
// Generated.Designer.cs
[CLSCompliant]
partial class Generated : ICloneable
{ … }
// Generated.cs
[Serializable]
partial class Generated : IDisposable
{ … }
VS .NET VS .NET 2003 VS 2005 VS 2008 Rx](https://image.slidesharecdn.com/ndc11cc-130522011025-phpapp01/85/NDC-2011-C-C-36-320.jpg)
![Implicitly Type Local
Variables and Arrays
// C# 2.0
Dictionary<string, object> dict =
new Dictionary<string, object>();
Type[] types = new Type[]
{ typeof(int) };
// C# 3.0
var dict =
new Dictionary<string, object>();
var types = new[] { typeof(int) };
VS .NET VS .NET 2003 VS 2005 VS 2008 Rx](https://image.slidesharecdn.com/ndc11cc-130522011025-phpapp01/85/NDC-2011-C-C-45-320.jpg)
NDC 2011, C++ 프로그래머를 위한 C#
- 1. C++ 프로그래머를 위한 C# ㈜넥슨 신규개발3본부 개발1실 GTR팀 성능연구유닛 김재석
- 4. 책임연구원 2010/2011, 마비노기2 2006/2009, 마비노기 영웅전 테크니컬 디렉터 2004/2005, 마비노기 2003/2004, 프로젝트 T2 2001/2003, Oz World [ɡ̊ɪm̚ ʨæːsɤk̚] /ɡim ɟɛːzʌɡ/
- 5. Agenda Visual Studio .NET Rainer .NET Framework 1.0 C# 1.0 Visual Studio .NET 2003 Everett .NET Framework 1.1, C# 1.2 Visual Studio 2005 Whidbey .NET Framework 2.0, C# 2,0 .NET Framework 3.0 WinFX Visual Studio 2008 Orcas .NET Framework 3.5, C# 3.0 Visual Studio 2010 Dev10 .NET Framework 4.0, C# 4.0 Reactive Extensions for .NET Framework 3.5 SP1
- 6. Visual Studio .NET Rainer .NET Framework 1.0 / C# 1.0 VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 7. C# 1.0 – Managed Code Common Type System Classes Structures Enumerations Interfaces Delegates Attributes Directives Visual Studio® .NET VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 8. Common Type System Primitive Types Field Method Property Event VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 9. Primitive Types Byte Int16 Int32 Int64 Single Double Boolean Char Decimal IntPtr String VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 10. Field // C# const int constant = 0; readonly int readOnlyField; // C++ static const int constant = 0; const int readOnlyField; mutable int mutableField; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 11. Field (cont.) Field ≠ variable default(T) if not initialized • null if reference type • 0 if value type VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 12. Method Member function with CV-qualifier class Object { public: String ToString() const { return const_cast<Object*>(this) ->ToString(); } virtual String ToString(); }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 13. Method (cont.) // C# void CallByRef(ref int value); bool TryGetValue(out int value); // C++ void CallByRef(int& value); bool TryGetValue(/*out*/int& value); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 14. Property Get Method/Set Method ≠ reference to type // C# variable = obj.PropertyName; obj.PropertyName = value // C++ variable = obj->get_PropertyName(); obj->setPropertyName(value); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 15. Property (cont.) Indexed property ≠ index operator [] int this[int index] { get { return array[index]; } set { array[index] = value; } } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 16. Property (cont.) Implementation: lazy evaluation class class Property<typename T> { operator T() const; Property& operator=(const T& value); Property& operator=(const Property& value); }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 17. Property (cont.) VC 7.1 or higher: property extended storage- class modifier virtual TypeName get_PropertyName(); virtual void set_PropertyName(const TypeName& value); __declspec(property(get=get_Property Name, put=set_PropertyName)) TypeName PropertyName; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 18. Event Multicast delegate // C# obj.EventName += someDelegate; obj.EventName -= someDelegate; if (obj.EventName != null) obj.EventName(); // C++ obj->add_EventName(someDelegate); obj->remove_EventName(someDelegate); obj->raise_EventName(); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 19. Classes Finalizer ≠ destructor GC.ReRegisterForFinalize(this); GC.SuppressFinalize(this); // C# GC.KeepAlive(value); // C++ Pointer<Object> keepAlive(value); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 20. Classes (cont.) Prevent R6025 – Pure virtual function call __forceinline void Release() { if (--referenceCounter == 0) { Finalize(); delete this; } } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 21. Classes (cont.) Type initializer a.k.a. static constructor namespace { class Static : … ; Pointer<Static> _static; } … if (_static == NULL) { _static.CompareExchange(Pointer<Static>( new Static), Pointer<Static>(NULL)); } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 22. Classes (cont.) Sealed class template <typename T> class Sealed { private: friend typename T; Sealed() { } ~Sealed() { } }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 23. Structures Lightweight – Value types Default constructor / finalizer • NEVER let contain unmanaged resources Expert only • Box/Unbox cost VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 24. Enumerations Value types string[] Enum.GetNames() TEnum[] Enum.GetValues() TEnum Enum.Parse(string s) bool Enum.TryParse( string s, out TEnum @enum) TEnum TEnum.MaxValue { get; } TEnum TEnum.MinValue { get; } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 25. Interfaces Virtual inheritance template <> class Task<void> : public Object, public virtual IAsyncResult, public virtual IDisposable { … }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 26. Delegates Closures or managed functors Calling conventions: • cdecl • stdcall • fastcall • thiscall • function object VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 27. Delegates (cont.) #define DEFINE_DELEGATE(TPARAMS, PARAMS, ARGS) template <typename TResult TPARAMS> class delegate<TResult(PARAMS)> … #define DELEGATE_TPARAMS , typename T1 #define DELEGATE_PARAMS T1 arg1 #define DELEGATE_ARGS arg1 DEFINE_DELEGATE(DELEGATE_TPARAMS, DELEGATE_PARAMS, DELEGATE_ARGS); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 28. Attributes template <typename T> class CustomAttribute { public: static const int get_Value() { return value; } private: static int value; }; #define CUSTOM_ATTRIBUTE(Type, _v) int CustomAttribute<Type>::value = _v VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 29. Directives using directive (C#) ≈ using directive (C++) Assemblies are referenced. #include directive (C++) package / import declarations (Java) #define directive defines a symbol assigns a value to a symbol VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 30. Visual Studio .NET 2003 Everett .NET Framework 1.1 / C# 1.2 VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 31. C# 1.2 – Bug Fix IDisposable interface • IEnumerator interface foreach (object obj in collection) // TEnumerator enumerator = // collection.GetEnumerator(); { } // if (enumerator is IDisposable) // enumerator.Dispose(); Visual Studio® .NET 2003 VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 32. Visual Studio 2005 Whidbey .NET Framework 2.0 / C# 2.0 VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 33. C# 2.0 – Generic Generics Iterators Partial Classes Nullable Types Anonymous Methods Static Classes Property Accessor Accessibilities Delegates VS .NET VS .NET 2003 VS 2005 VS 2008 Rx Visual Studio® 2005
- 34. Generics System.Collections.Generic • List<T> std::vector<T> • Queue<T> std::queue<T> • Stack<T> std::stack<T> • LinkedList<T> std::list<T> • Dictionary<TKey, TValue> std::map<Key, T> • HashSet<T> std::set<T> VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 35. Iterators IEnumerable<T> Where<T>( IEnumerable<T> source, Func<T, bool> predicate) { if (source == null) yield break; foreach (T value in source) { if (!predicate(value)) continue; yield return value; } } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 36. Partial Classes // Generated.Designer.cs [CLSCompliant] partial class Generated : ICloneable { … } // Generated.cs [Serializable] partial class Generated : IDisposable { … } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 37. Nullable Types Nullable<T> where T : struct Coalescing operator ?? int? nullable = null; int value = nullable ?? default(int); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 38. Anonymous Methods // C# 2.0 Func<Type, bool> predicate = // nested type in C# 1.2 delegate(Type value) { return value == default(Type); }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 39. Static Classes Classes which are both abstract and sealed. public static class Helper { public static int GetHash(object obj) { return obj.GetHashCode(); } } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 40. Property Accessor Accessibilities // C# 1.2 public Type PropertyName { get { return field; } } internal void SetPropertyName(Type value) { fieldName = value; } // C# 2.0 public Type PropertyName { get { return fieldName; } internal set { fieldName = value; } } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 41. Delegates string Covariance() … Func<object> function = new Func<object>(Covariance); void Contravariance(object arg); Action<string> action = new Action<string>( Contravariance); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 42. Delegates (cont.) // C# 1.2 Action action = new Action(obj.MethodName); // C# 2.0 Action action = obj.MethodName; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 43. Visual Studio 2008 Orcas .NET Framework 3.5 / C# 3.0 VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 44. C# 3.0 – LINQ Implicitly Type Local Variables and Arrays Object Initializers Collection Initializers Extension Methods Anonymous Types Lambda Expressions Query Keywords Auto-Implemented Properties Partial Method Definitions VS .NET VS .NET 2003 VS 2005 VS 2008 Rx Visual Studio® 2008
- 45. Implicitly Type Local Variables and Arrays // C# 2.0 Dictionary<string, object> dict = new Dictionary<string, object>(); Type[] types = new Type[] { typeof(int) }; // C# 3.0 var dict = new Dictionary<string, object>(); var types = new[] { typeof(int) }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 46. Object Initializers // C# 2.0 SomeKeyValue pair = new SomeKeyValue(); value.Name = “anonymous”; value.Value = null; // C# 3.0 var value = new SomeKeyValue() { Name = “anonymous”, Value = null, }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 47. Collection Initializers // C# 2.0 List<int> list = new List<int>(); list.Add(1); list.Add(2); // C# 3.0 var list = new List<int> { 1, 2 }; VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 48. Extension Methods static class ComponentExtensions { static void DoSomething( this IComponent component, T arg) { … } } ComponentExtensions.Do(component, arg); component.DoSomething(arg); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 49. Anonymous Types foreach (var value in from row in table select new { Type = row.GetType(), Hash = row.GetHashCode(), }) { Console.WriteLine(“{{ Type = {0}, Hash = {1} }}”, value.Type, value.Hash); Console.WriteLine(value); } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 50. Lambda Expressions // C# 2.0 Func<Type, bool> predicate = delegate(Type value) { return value == default(Type); }; // C# 3.0 Func<Type, bool> predicate = value => value == default(Type); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 51. Query Keywords var q = from c in categories join p in products on c.ID equals p.CID orderby c.ID, p.Price descending group p.Price by c.ID into g let cid = g.Key where Predicate(cid) select g.Average(); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 52. Query Keywords (cont.) var q = categories .Join(products, c => c.ID, p => p.CID, (c, p) => new { c = c, p = p }) .OrderBy(_ => _.c.ID) .ThenByDescending(_ => _.p.Price) .GroupBy(_ => _.c.ID, _.p.Price) .Select(g => new { g = g, cid = g.Key }) .Where(_ => Predicate(_.cid)) .Select(_ => _.g.Average()); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 53. Auto-Implemented Properties // C# 2.0 public Type PropertyName { get { return fieldName; } internal set { fieldName = value; } } // C# 3.0 public Type PropertyName { get; internal set; } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 54. Partial Method Definitions // Generated.Designer.cs partial class Generated { Generated() { OnInitialized(); } partial void OnInitialized(); } // Generated.cs partial class Generated { partial void OnInitialized() { … } } VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 55. Reactive Extensions for .NET Framework 3.5 SP1 VS .NET VS .NET 2003 VS 2005 VS 2008 Rx More LINQ with System.Interactive – Getting Started by Bart De Smet
- 56. Reactive Extensions Task Parallel Library ∈ .NET Framework 4.0 Observer Design Pattern VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 57. Task Parallel Library System.Collections.Concurrent • ConcurrentBag<T> tbb::concurrent_vector<T> • ConcurrentQueue<T> tbb::concurrent_queue<T> • ConcurrentStack<T> tbb::concurrent_stack<T> • ConcurrentDictionary<TKey, TValue> tbb::concurrent_hash_map<Key, T> VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 58. Task Parallel Library (cont.) System.Threading.Tasks // C# 3.0 ThreadPool.QueueUserWorkItem( callback, state); // C# 4.0 or Rx Task.Factory.StartNew( action, state); VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 59. Observer Design Pattern VS .NET VS .NET 2003 VS 2005 VS 2008 Rx More LINQ with System.Interactive – Getting Started by Bart De Smet
- 60. Observer Design Pattern (Further reading) Duality of IEnumerable<T> / IObservable<T> Reactive Framework Finally Explained More LINQ with System.Interactive series VS .NET VS .NET 2003 VS 2005 VS 2008 Rx
- 61. Q&A