I am thinking of how to pass allocator object to STL C++ containers, for example as below
std::allocator<int> intAlloc; vector<int, intAlloc> v1; I do aware of we can do like below
vector<int, std::allocator<int> > v2; I am think of options of how to pass a same allocator object to all vector objects instead of passing allocator type.
As mentioned in comment by Jarod above. I am looking for some thing below which can be achieved by using same allocator object for both vectors.
std::allocator<int> intAlloc; vector<int, std::allocator<int> > v2(intAlloc); vector<int, std::allocator<int> > v2(intAlloc); The allocator is shared between all objects of this type:
Every standard library component that may need to allocate or release storage, from std::string, std::vector, and every container except std::array, to std::shared_ptr and std::function, does so through an Allocator: an object of a class
It is, in other words, impossible to not share the allocator between objects.
std::vector<int, std::allocator<int> > v2(intAlloc);?