1*bb611c8fSApple OSS Distributions // 2*bb611c8fSApple OSS Distributions // Tests for 3*bb611c8fSApple OSS Distributions // intrusive_shared_ptr& operator=(std::nullptr_t); 4*bb611c8fSApple OSS Distributions // 5*bb611c8fSApple OSS Distributions 6*bb611c8fSApple OSS Distributions #include <libkern/c++/intrusive_shared_ptr.h> 7*bb611c8fSApple OSS Distributions #include <darwintest.h> 8*bb611c8fSApple OSS Distributions #include "test_policy.h" 9*bb611c8fSApple OSS Distributions 10*bb611c8fSApple OSS Distributions struct T { 11*bb611c8fSApple OSS Distributions int i; 12*bb611c8fSApple OSS Distributions }; 13*bb611c8fSApple OSS Distributions 14*bb611c8fSApple OSS Distributions template <typename T> 15*bb611c8fSApple OSS Distributions static void 16*bb611c8fSApple OSS Distributions tests() 17*bb611c8fSApple OSS Distributions { 18*bb611c8fSApple OSS Distributions T obj{3}; 19*bb611c8fSApple OSS Distributions 20*bb611c8fSApple OSS Distributions // Assign nullptr to non-null 21*bb611c8fSApple OSS Distributions { 22*bb611c8fSApple OSS Distributions tracked_shared_ptr<T> ptr(&obj, libkern::retain); 23*bb611c8fSApple OSS Distributions tracking_policy::reset(); 24*bb611c8fSApple OSS Distributions tracked_shared_ptr<T>& ref = (ptr = nullptr); 25*bb611c8fSApple OSS Distributions CHECK(tracking_policy::releases == 1); 26*bb611c8fSApple OSS Distributions CHECK(tracking_policy::retains == 0); 27*bb611c8fSApple OSS Distributions CHECK(&ref == &ptr); 28*bb611c8fSApple OSS Distributions CHECK(ptr.get() == nullptr); 29*bb611c8fSApple OSS Distributions } 30*bb611c8fSApple OSS Distributions 31*bb611c8fSApple OSS Distributions // Assign nullptr to null 32*bb611c8fSApple OSS Distributions { 33*bb611c8fSApple OSS Distributions tracked_shared_ptr<T> ptr = nullptr; 34*bb611c8fSApple OSS Distributions tracking_policy::reset(); 35*bb611c8fSApple OSS Distributions tracked_shared_ptr<T>& ref = (ptr = nullptr); 36*bb611c8fSApple OSS Distributions CHECK(tracking_policy::releases == 0); 37*bb611c8fSApple OSS Distributions CHECK(tracking_policy::retains == 0); 38*bb611c8fSApple OSS Distributions CHECK(&ref == &ptr); 39*bb611c8fSApple OSS Distributions CHECK(ptr.get() == nullptr); 40*bb611c8fSApple OSS Distributions } 41*bb611c8fSApple OSS Distributions } 42*bb611c8fSApple OSS Distributions 43*bb611c8fSApple OSS Distributions T_DECL(assign_nullptr, "intrusive_shared_ptr.assign.nullptr") { 44*bb611c8fSApple OSS Distributions tests<T>(); 45*bb611c8fSApple OSS Distributions tests<T const>(); 46*bb611c8fSApple OSS Distributions } 47