Eric Fiselier | 4e7d536 | 2014-10-23 04:12:28 +0000 | [diff] [blame^] | 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 | // shared_ptr |
| 13 | |
| 14 | // template<class T, class A, class... Args> |
| 15 | // shared_ptr<T> allocate_shared(const A& a, Args&&... args); |
| 16 | |
| 17 | #define _LIBCPP_HAS_NO_VARIADICS |
| 18 | #include <memory> |
| 19 | #include <new> |
| 20 | #include <cstdlib> |
| 21 | #include <cassert> |
| 22 | #include "test_allocator.h" |
| 23 | #include "min_allocator.h" |
| 24 | |
| 25 | struct Zero |
| 26 | { |
| 27 | static int count; |
| 28 | Zero() {++count;} |
| 29 | Zero(Zero const &) {++count;} |
| 30 | ~Zero() {--count;} |
| 31 | }; |
| 32 | |
| 33 | int Zero::count = 0; |
| 34 | |
| 35 | struct One |
| 36 | { |
| 37 | static int count; |
| 38 | int value; |
| 39 | explicit One(int v) : value(v) {++count;} |
| 40 | One(One const & o) : value(o.value) {++count;} |
| 41 | ~One() {--count;} |
| 42 | }; |
| 43 | |
| 44 | int One::count = 0; |
| 45 | |
| 46 | |
| 47 | struct Two |
| 48 | { |
| 49 | static int count; |
| 50 | int value; |
| 51 | Two(int v, int) : value(v) {++count;} |
| 52 | Two(Two const & o) : value(o.value) {++count;} |
| 53 | ~Two() {--count;} |
| 54 | }; |
| 55 | |
| 56 | int Two::count = 0; |
| 57 | |
| 58 | struct Three |
| 59 | { |
| 60 | static int count; |
| 61 | int value; |
| 62 | Three(int v, int, int) : value(v) {++count;} |
| 63 | Three(Three const & o) : value(o.value) {++count;} |
| 64 | ~Three() {--count;} |
| 65 | }; |
| 66 | |
| 67 | int Three::count = 0; |
| 68 | |
| 69 | template <class Alloc> |
| 70 | void test() |
| 71 | { |
| 72 | int const bad = -1; |
| 73 | { |
| 74 | std::shared_ptr<Zero> p = std::allocate_shared<Zero>(Alloc()); |
| 75 | assert(Zero::count == 1); |
| 76 | } |
| 77 | assert(Zero::count == 0); |
| 78 | { |
| 79 | int const i = 42; |
| 80 | std::shared_ptr<One> p = std::allocate_shared<One>(Alloc(), i); |
| 81 | assert(One::count == 1); |
| 82 | assert(p->value == i); |
| 83 | } |
| 84 | assert(One::count == 0); |
| 85 | { |
| 86 | int const i = 42; |
| 87 | std::shared_ptr<Two> p = std::allocate_shared<Two>(Alloc(), i, bad); |
| 88 | assert(Two::count == 1); |
| 89 | assert(p->value == i); |
| 90 | } |
| 91 | assert(Two::count == 0); |
| 92 | { |
| 93 | int const i = 42; |
| 94 | std::shared_ptr<Three> p = std::allocate_shared<Three>(Alloc(), i, bad, bad); |
| 95 | assert(Three::count == 1); |
| 96 | assert(p->value == i); |
| 97 | } |
| 98 | assert(Three::count == 0); |
| 99 | } |
| 100 | |
| 101 | int main() |
| 102 | { |
| 103 | { |
| 104 | int i = 67; |
| 105 | int const bad = -1; |
| 106 | std::shared_ptr<Two> p = std::allocate_shared<Two>(test_allocator<Two>(54), i, bad); |
| 107 | assert(test_allocator<Two>::alloc_count == 1); |
| 108 | assert(Two::count == 1); |
| 109 | assert(p->value == 67); |
| 110 | } |
| 111 | assert(Two::count == 0); |
| 112 | assert(test_allocator<Two>::alloc_count == 0); |
| 113 | |
| 114 | test<bare_allocator<void> >(); |
| 115 | #if __cplusplus >= 201103L |
| 116 | test<min_allocator<void> >(); |
| 117 | #endif |
| 118 | } |