Casting a container of shared_ptr
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by Jamie Cook
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Published on 2010-05-06T15:05:26Z
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2010/05/06
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Hi all,
I have a method
void foo(list<shared_ptr<Base>>& myList);
Which I'm trying to call with a two different types of lists, one of DerivedClass1 and one of DerivedClass2
list<shared_ptr<DerivedClass1>> myList1;
foo(myList1);
list<shared_ptr<DerivedClass2>> myList2;
foo(myList2);
However this obviously generates a compiler error
error: a reference of type "std::list<boost::shared_ptr<Base>, std::allocator<boost::shared_ptr<Base>>> &" (not const-qualified) cannot be initialized with a value of type "std::list<boost::shared_ptr<DerivedClass1>, std::allocator<boost::shared_ptr<DerivedClass1>>>"
Is there any easy way to cast a container of shared_ptr? Of alternate containers that can accomplish this?
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