1 // 2 // Tests for 3 // iterator begin(); 4 // const_iterator begin() const; 5 // 6 // iterator end(); 7 // const_iterator end() const; 8 // 9 10 #include <libkern/c++/safe_allocation.h> 11 #include <darwintest.h> 12 #include "test_utils.h" 13 #include <type_traits> 14 15 struct T { 16 int i; 17 }; 18 19 template <typename T> 20 static void tests()21tests() 22 { 23 using A = test_safe_allocation<T>; 24 25 // Check begin()/end() for a non-null allocation 26 { 27 A array(10, libkern::allocate_memory); 28 T* data = array.data(); 29 test_bounded_ptr<T> begin = array.begin(); 30 test_bounded_ptr<T> end = array.end(); 31 CHECK(begin.discard_bounds() == data); 32 CHECK(end.unsafe_discard_bounds() == data + 10); 33 } 34 { 35 A const array(10, libkern::allocate_memory); 36 T const* data = array.data(); 37 test_bounded_ptr<T const> begin = array.begin(); 38 test_bounded_ptr<T const> end = array.end(); 39 CHECK(begin.discard_bounds() == data); 40 CHECK(end.unsafe_discard_bounds() == data + 10); 41 } 42 43 // Check begin()/end() for a null allocation 44 { 45 A array = nullptr; 46 test_bounded_ptr<T> begin = array.begin(); 47 test_bounded_ptr<T> end = array.end(); 48 CHECK(begin.unsafe_discard_bounds() == nullptr); 49 CHECK(end.unsafe_discard_bounds() == nullptr); 50 CHECK(begin == end); 51 } 52 { 53 A const array = nullptr; 54 test_bounded_ptr<T const> begin = array.begin(); 55 test_bounded_ptr<T const> end = array.end(); 56 CHECK(begin.unsafe_discard_bounds() == nullptr); 57 CHECK(end.unsafe_discard_bounds() == nullptr); 58 CHECK(begin == end); 59 } 60 61 // Check associated types 62 { 63 static_assert(std::is_same_v<typename A::iterator, test_bounded_ptr<T> >); 64 static_assert(std::is_same_v<typename A::const_iterator, test_bounded_ptr<T const> >); 65 } 66 } 67 68 T_DECL(begin_end, "safe_allocation.begin_end", T_META_TAG_VM_PREFERRED) { 69 tests<T>(); 70 tests<T const>(); 71 } 72