Re: [Boost-users] How to return a Null pointer for shared_ptr

Use return IntPtr(); This will also return NULL if IntPtr is a typedef of a raw pointer type. Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode On Tue, Dec 1, 2009 at 5:12 PM, hce wrote:

Hi,

I defined a shared_ptr in to a map table. How can I return a NULL pointer in a function to search the table if it is not found as following example?

typedef shared_ptr<int> IntPtr; typedef std::map MapTable;

MapTable mt;

IntPtr search(const std::string& key) {    MapTable::const_iterator it = mt.find(key);    if (it == mt.end()) {         return NULL; // can't compile it??    }    return it->second; }

Thank you.

Kind regards,

Jupiter _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users