File indexing completed on 2021-02-14 13:29:23
0001 #include "FWCore/Utilities/interface/value_ptr.h"
0002
0003 #include <memory>
0004 #include <cassert>
0005 #include <atomic>
0006
0007 class simple {
0008 int i;
0009
0010 public:
0011 static std::atomic<int> count;
0012 static std::atomic<int> count1;
0013 simple() : i(0) {
0014 ++count;
0015 ++count1;
0016 }
0017 explicit simple(int j) : i(j) {
0018 ++count;
0019 ++count1;
0020 }
0021 simple(simple const& s) : i(s.i) {
0022 ++count;
0023 ++count1;
0024 }
0025 ~simple() { --count; }
0026 bool operator==(simple const& o) const { return i == o.i; }
0027 bool isSame(simple const& o) const { return &o == this; }
0028 simple& operator=(simple const& o) {
0029 simple temp(o);
0030 std::swap(*this, temp);
0031 return *this;
0032 }
0033 };
0034
0035 std::atomic<int> simple::count{0};
0036 std::atomic<int> simple::count1{0};
0037
0038 int main() {
0039 assert(simple::count == 0);
0040 {
0041 edm::value_ptr<simple> a(new simple(10));
0042 assert(simple::count == 1);
0043 edm::value_ptr<simple> b(a);
0044 assert(simple::count == 2);
0045
0046 assert(*a == *b);
0047 assert(a->isSame(*b) == false);
0048 }
0049 assert(simple::count == 0);
0050
0051 {
0052 auto c = std::make_unique<simple>(11);
0053 auto d = std::make_unique<simple>(11);
0054 assert(c.get() != nullptr);
0055 assert(d.get() != nullptr);
0056 simple* pc = c.get();
0057 simple* pd = d.get();
0058
0059 edm::value_ptr<simple> e(std::move(c));
0060 assert(c.get() == nullptr);
0061 assert(*d == *e);
0062 assert(e.operator->() == pc);
0063
0064 edm::value_ptr<simple> f;
0065 if (f) {
0066 assert(0);
0067 } else {
0068 }
0069 f = std::move(d);
0070 assert(d.get() == nullptr);
0071 assert(*e == *f);
0072 assert(f.operator->() == pd);
0073 if (f) {
0074 } else {
0075 assert(0);
0076 }
0077
0078 assert(simple::count == 2);
0079 assert(simple::count1 == 4);
0080 }
0081 assert(simple::count == 0);
0082 assert(simple::count1 == 4);
0083 }
