c++ - How to destroy a smart pointer prematurely -

i have class has setter method takes unique_ptr argument. unique_ptr saved class member.

class testclass {     std::unique_ptr<tester> sp;      void settester_way1(std::unique_ptr<tester> te) {          auto deleter=std::move(sp);          sp=std::move(te);     }      void settester_way2(std::unique_ptr<tester> te) {          sp=std::move(te);     } }; 

which way correct way set smart pointer? way2 leak original pointer of sp?

way2 fine, when assign unique_ptr existing owned pointer safely deleted.