1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <memory> 11 12 // template<class D, class A> shared_ptr(nullptr_t, D d, A a); 13 14 #include <memory> 15 #include <cassert> 16 #include "deleter_types.h" 17 #include "test_allocator.h" 18 #include "min_allocator.h" 19 20 struct A 21 { 22 static int count; 23 24 A() {++count;} 25 A(const A&) {++count;} 26 ~A() {--count;} 27 }; 28 29 int A::count = 0; 30 31 int main() 32 { 33 { 34 std::shared_ptr<A> p(nullptr, test_deleter<A>(3), test_allocator<A>(5)); 35 assert(A::count == 0); 36 assert(p.use_count() == 1); 37 assert(p.get() == 0); 38 test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p); 39 assert(test_deleter<A>::count == 1); 40 assert(test_deleter<A>::dealloc_count == 0); 41 assert(d); 42 assert(d->state() == 3); 43 assert(test_allocator<A>::count == 1); 44 assert(test_allocator<A>::alloc_count == 1); 45 } 46 assert(A::count == 0); 47 assert(test_deleter<A>::count == 0); 48 assert(test_deleter<A>::dealloc_count == 1); 49 assert(test_allocator<A>::count == 0); 50 assert(test_allocator<A>::alloc_count == 0); 51 test_deleter<A>::dealloc_count = 0; 52 // Test an allocator with a minimal interface 53 { 54 std::shared_ptr<A> p(nullptr, test_deleter<A>(1), bare_allocator<void>()); 55 assert(A::count == 0); 56 assert(p.use_count() == 1); 57 assert(p.get() == 0); 58 test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p); 59 assert(test_deleter<A>::count ==1); 60 assert(test_deleter<A>::dealloc_count == 0); 61 assert(d); 62 assert(d->state() == 1); 63 } 64 assert(A::count == 0); 65 assert(test_deleter<A>::count == 0); 66 assert(test_deleter<A>::dealloc_count == 1); 67 test_deleter<A>::dealloc_count = 0; 68 #if TEST_STD_VER >= 11 69 // Test an allocator that returns class-type pointers 70 { 71 std::shared_ptr<A> p(nullptr, test_deleter<A>(1), min_allocator<void>()); 72 assert(A::count == 0); 73 assert(p.use_count() == 1); 74 assert(p.get() == 0); 75 test_deleter<A>* d = std::get_deleter<test_deleter<A> >(p); 76 assert(test_deleter<A>::count ==1); 77 assert(test_deleter<A>::dealloc_count == 0); 78 assert(d); 79 assert(d->state() == 1); 80 } 81 assert(A::count == 0); 82 assert(test_deleter<A>::count == 0); 83 assert(test_deleter<A>::dealloc_count == 1); 84 #endif 85 } 86