BoxedValue

BoxedValue class

Represents a boxed value. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument.

template<class T>class BoxedValue : public System::BoxedValueBase

Template parameters

ParameterDescription
TType of the boxed value represented by the class

Methods

MethodDescription
BoxedValue(const T&)Constructs an object that represents the specified value boxed.
bool Equals(ptr) overrideDetermines the equality of the boxed values represented by the current and specified objects.
static std::enable_if<IsSmartPtr<T1>::value&&IsSmartPtr<T2>::value, bool>::type Equals(T1 const&, T2 const&)Compares reference type objects in C# style.
static bool Equals(float const&, float const&)Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN.
static bool Equals(double const&, double const&)Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN.
virtual bool FastCast(const Details::FastRttiBase&, void **) constFor internal purposes only.
Detail::SmartPtrCounter * GetCounter()Gets reference counter data structure associated with the object.
int GetHashCode() const overrideReturns a hash code for the current object.
const System::TypeInfo& GetType() const overrideGets actual type of object.
TypeCode GetTypeCode() const overrideReturns the value representing the type of the boxed value represented by the current object.
uint64_t GetUnsignedLongLongValue() overrideAlways returns 0.
virtual bool Is(const TypeInfo&) constCheck if object represents an instance of type described by targetType. Analog of C# ‘is’ operator.
bool is() constDetermines if the type of the boxed value represented by the current object is V.
bool IsBoxedEnum() overrideDetermines if current object represents a boxed value of enum type.
void Lock()Implements C# lock() statement locking. Call directly or use LockContext sentry object.
virtual ptr MemberwiseClone() constAnalog of C# Object.MemberwiseClone() method. Enables cloning custom types.
Object()Creates object. Initializes all internal data structures.
Object(Object const&)Copy constructor. Doesn’t copy anything, really, just initializes new object and enables copy constructing subclasses.
Object& operator=(Object const&)Assignment operator. Doesn’t copy anything, really, just initializes new object and enables copy constructing subclasses.
static SharedPtr<Object> Parse(const TypeInfo&, const String&, bool)Boxes the value of enumeration constant of the specified enumeration with the specified name. A parameter specifies if the case should be ignored when interpreting the string specifying the name of the enumeration constant.
static SharedPtr<Object> Parse(const TypeInfo&, const String&)Boxes the value of enumeration constant of the specified enumeration with the specified name.
static bool ReferenceEquals(ptr const&, ptr const&)Compares objects by reference.
static std::enable_if<!IsSmartPtr<T>::value, bool>::type ReferenceEquals(T const&, T const&)Compares objects by reference.
static std::enable_if<!IsSmartPtr<T>::value, bool>::type ReferenceEquals(T const&, std::nullptr_t)Reference-compares value type object with nullptr.
bool ReferenceEquals(String const&, std::nullptr_t)Specialization of Object::ReferenceEquals for case of string and nullptr.
bool ReferenceEquals(String const&, String const&)Specialization of Object::ReferenceEquals for case of strings.
int RemovedSharedRefs(int)Decreases shared reference count by specified value.
virtual void SetTemplateWeakPtr(uint32_t)Set n’th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode.
int SharedCount() constGets current value of shared reference counter.
Object * SharedRefAdded()Increments shared reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
int SharedRefRemovedSafe()Decrements and returns shared reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
String ToString() const overrideConverts boxed value represented by current object to string.
static const TypeInfo& Type()Implements C# typeof(System.Object) construct.
const T& unbox() constUnboxes the value represented by the current object.
void Unlock()Implements C# lock() statement unlocking. Call directly or use LockContext sentry object.
Detail::SmartPtrCounter * WeakRefAdded()Increments weak reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
void WeakRefRemoved()Decrements weak reference count. Shouldn’t be called directly; instead, use smart pointers or ThisProtector.
virtual ~Object()Destroys object. Frees all internal data structures.

See Also