Author: faridz
Date: Tue May 29 04:44:13 2007
New Revision: 542494
URL: http://svn.apache.org/viewvc?view=rev&rev=542494
Log:
2007-05-29 Farid Zaripov <[EMAIL PROTECTED]>
STDCXX-378
* dynatype.cpp: Restored dynatype::operator T&(); dynatype::operator
T() const
renamed to dynatype::operator const T&() const.
Modified:
incubator/stdcxx/trunk/examples/tutorial/dynatype.cpp
Modified: incubator/stdcxx/trunk/examples/tutorial/dynatype.cpp
URL:
http://svn.apache.org/viewvc/incubator/stdcxx/trunk/examples/tutorial/dynatype.cpp?view=diff&rev=542494&r1=542493&r2=542494
==============================================================================
--- incubator/stdcxx/trunk/examples/tutorial/dynatype.cpp (original)
+++ incubator/stdcxx/trunk/examples/tutorial/dynatype.cpp Tue May 29 04:44:13
2007
@@ -88,13 +88,20 @@
(this->*p_remove)();
}
- // retrieve a value of the concrete type from an instance of
+ // retrieve a reference to the concrete type from an instance of
// dynatype throws std::bad_cast if the types don't match exactly
template <class T>
- operator T () const {
+ operator T& () {
if (map<T>::get ().end () == map<T>::get ().find (this))
throw std::bad_cast ();
return map<T>::get () [this];
+ }
+
+ // retrieve a const reference to the concrete type from an instance of
+ // dynatype throws std::bad_cast if the types don't match exactly
+ template <class T>
+ operator const T& () const {
+ return static_cast<T&> (*const_cast<dynatype*> (this));
}
// assign a value of any type to an instance of dynatype
