1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <memory> 10 11 // template<class Y> explicit shared_ptr(Y* p); 12 13 #include <memory> 14 #include <cassert> 15 16 #include "test_macros.h" 17 18 struct A 19 { 20 static int count; 21 22 A() {++count;} 23 A(const A&) {++count;} 24 ~A() {--count;} 25 }; 26 27 int A::count = 0; 28 29 int main(int, char**) 30 { 31 { 32 A* ptr = new A; 33 std::shared_ptr<A> p(ptr); 34 assert(A::count == 1); 35 assert(p.use_count() == 1); 36 assert(p.get() == ptr); 37 } 38 assert(A::count == 0); 39 { 40 A* ptr = new A; 41 std::shared_ptr<void> p(ptr); 42 assert(A::count == 1); 43 assert(p.use_count() == 1); 44 assert(p.get() == ptr); 45 } 46 assert(A::count == 0); 47 48 #if TEST_STD_VER > 14 49 { 50 std::shared_ptr<A[8]> pA(new A[8]); 51 assert(pA.use_count() == 1); 52 assert(A::count == 8); 53 } 54 assert(A::count == 0); 55 56 { 57 std::shared_ptr<A[]> pA(new A[8]); 58 assert(pA.use_count() == 1); 59 assert(A::count == 8); 60 } 61 assert(A::count == 0); 62 #endif 63 64 return 0; 65 } 66