i have template
template <typename t, size_t maxsiz = 6> class array; and have adaptor template
template <typename t, template <typename> class container = std::vector> class stack; what want use array stack so
stack<int, array> s; however, default constructor of array not fulfill requirements made stack, need specialize stack array. ideally, want specialize ctor of stack<t, array>, can give inner array member right argument @ initialization.
i have tried this
template <typename t> class stack<t, array>::stack() : container(0) { } // container name of wrapped container it, however, has problems. first, wont compile (yeah...), , second, want able give array different size, this
stack<int, array<int, 13>> stack; or functionally equivalent (compile time constant size of array). how 1 accomplish this?
update
so i've done bit more digging, , apparently can't partially specialize member function without corresponding partial specialization of entire class. explains why attempt not work.
rather change stack work array, should provide adapter array works stack:
template <typename t> struct stackarray : array<t> { stackarray() : array<t>(0) { } // else needs change here }; that let do:
stack<int, stackarray> s; also, stack template incorrect. cannot use std::vector default template template <typename> class container std::vector takes two template arguments. more useful if made it:
template <typename t, typename container = std::vector<t>> struct stack { .. }; as add maxsiz argument stackarray , like:
stack<int, stackarray<int, 13>> s; this how std::priority_queue , std::stack designed.
