C++智能指针shared_ptr

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void PrintIfString?(constany&Any){

if(cons tshared_ptr* s=

any_cast>(&Any)){

cout<<**s<<endl;

}

}

int main(int argc,char* argv[])

{

std::vectorStuff;

shared_ptrSharedString1?

(new string("Shareme.Bytheway,Boost.anyisanotherusefulBoostlibrary"));

shared_ptrSharedString2?

(SharedString1?);

shared_ptrSharedInt1?

(newint(42));

shared_ptrSharedInt2?

(SharedInt1?);

Stuff.push_back(SharedString1?);

Stuff.push_back(SharedString2?);

Stuff.push_back(SharedInt1?);

Stuff.push_back(SharedInt2?);

//Printthestrings

for_each(Stuff.begin(),Stuff.end(),

PrintIfString?);

Stuff.clear();

//Thepointeesoftheshared_ptr‘s

//willbereleasedonleavingscope

//shared_ptr的pointee离开这个范围后将被释放

return0;

}