Merge pull request #435 from redboltz/fix_433

Fix 433

include/msgpack/v1/adaptor/map.hpp

@@ -70,6 +70,7 @@ struct convert<type::assoc_vector<K, V, Compare, Alloc> > {
     msgpack::object const& operator()(msgpack::object const& o, type::assoc_vector<K, V, Compare, Alloc>& v) const {
         if (o.type != msgpack::type::MAP) { throw msgpack::type_error(); }
         v.resize(o.via.map.size);
+        if (o.via.map.size != 0) {
             msgpack::object_kv* p = o.via.map.ptr;
             msgpack::object_kv* const pend = o.via.map.ptr + o.via.map.size;
             std::pair<K, V>* it(&v.front());
@@ -78,6 +79,7 @@ struct convert<type::assoc_vector<K, V, Compare, Alloc> > {
                 p->val.convert(it->second);
             }
             std::sort(v.begin(), v.end(), type::detail::pair_first_less<K, V, Compare, Alloc>());
+        }
         return o;
     }
 };
@@ -192,14 +194,22 @@ struct object_with_zone<std::map<K, V, Compare, Alloc> > {
         }
         else {
             uint32_t size = checked_get_container_size(v.size());
+
             msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
             typename std::map<K, V, Compare, Alloc>::const_iterator it(v.begin());
             do {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
                 p->key = msgpack::object(it->first, o.zone);
                 p->val = msgpack::object(it->second, o.zone);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
                 ++p;
                 ++it;
             } while(p < pend);

include/msgpack/v1/adaptor/vector_char.hpp

@@ -31,11 +31,29 @@ struct convert<std::vector<char, Alloc> > {
         switch (o.type) {
         case msgpack::type::BIN:
             v.resize(o.via.bin.size);
+            if (o.via.bin.size != 0) {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
                 std::memcpy(&v.front(), o.via.bin.ptr, o.via.bin.size);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+            }
             break;
         case msgpack::type::STR:
             v.resize(o.via.str.size);
+            if (o.via.str.size != 0) {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
                 std::memcpy(&v.front(), o.via.str.ptr, o.via.str.size);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+            }
             break;
         default:
             throw msgpack::type_error();
@@ -51,7 +69,9 @@ struct pack<std::vector<char, Alloc> > {
     msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::vector<char, Alloc>& v) const {
         uint32_t size = checked_get_container_size(v.size());
         o.pack_bin(size);
+        if (size != 0) {
             o.pack_bin_body(&v.front(), size);
+        }
 
         return o;
     }
@@ -62,7 +82,9 @@ struct object<std::vector<char, Alloc> > {
     void operator()(msgpack::object& o, const std::vector<char, Alloc>& v) const {
         uint32_t size = checked_get_container_size(v.size());
         o.type = msgpack::type::BIN;
+        if (size != 0) {
             o.via.bin.ptr = &v.front();
+        }
         o.via.bin.size = size;
     }
 };
@@ -72,11 +94,13 @@ struct object_with_zone<std::vector<char, Alloc> > {
     void operator()(msgpack::object::with_zone& o, const std::vector<char, Alloc>& v) const {
         uint32_t size = checked_get_container_size(v.size());
         o.type = msgpack::type::BIN;
+        o.via.bin.size = size;
+        if (size != 0) {
             char* ptr = static_cast<char*>(o.zone.allocate_align(size));
             o.via.bin.ptr = ptr;
-        o.via.bin.size = size;
             std::memcpy(ptr, &v.front(), size);
         }
+    }
 };
 
 } // namespace adaptor

include/msgpack/v1/adaptor/vector_unsigned_char.hpp

@@ -31,11 +31,29 @@ struct convert<std::vector<unsigned char, Alloc> > {
         switch (o.type) {
         case msgpack::type::BIN:
             v.resize(o.via.bin.size);
+            if (o.via.bin.size != 0) {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
                 std::memcpy(&v.front(), o.via.bin.ptr, o.via.bin.size);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+            }
             break;
         case msgpack::type::STR:
             v.resize(o.via.str.size);
+            if (o.via.str.size != 0) {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
                 std::memcpy(&v.front(), o.via.str.ptr, o.via.str.size);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+            }
             break;
         default:
             throw msgpack::type_error();
@@ -51,7 +69,9 @@ struct pack<std::vector<unsigned char, Alloc> > {
     msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::vector<unsigned char, Alloc>& v) const {
         uint32_t size = checked_get_container_size(v.size());
         o.pack_bin(size);
+        if (size != 0) {
             o.pack_bin_body(reinterpret_cast<char const*>(&v.front()), size);
+        }
 
         return o;
     }
@@ -62,7 +82,9 @@ struct object<std::vector<unsigned char, Alloc> > {
     void operator()(msgpack::object& o, const std::vector<unsigned char, Alloc>& v) const {
         uint32_t size = checked_get_container_size(v.size());
         o.type = msgpack::type::BIN;
+        if (size != 0) {
             o.via.bin.ptr = reinterpret_cast<char const*>(&v.front());
+        }
         o.via.bin.size = size;
     }
 };
@@ -72,11 +94,13 @@ struct object_with_zone<std::vector<unsigned char, Alloc> > {
     void operator()(msgpack::object::with_zone& o, const std::vector<unsigned char, Alloc>& v) const {
         uint32_t size = checked_get_container_size(v.size());
         o.type = msgpack::type::BIN;
+        o.via.bin.size = size;
+        if (size != 0) {
             char* ptr = static_cast<char*>(o.zone.allocate_align(size));
             o.via.bin.ptr = ptr;
-        o.via.bin.size = size;
             std::memcpy(ptr, &v.front(), size);
         }
+    }
 };
 
 } // namespace adaptor

test/msgpack_container.cpp

@@ -54,6 +54,20 @@ TEST(MSGPACK_STL, simple_buffer_vector)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_vector_empty)
+{
+    typedef vector<int, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::ARRAY);
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_vector_char)
 {
     typedef vector<char, test::allocator<char> > type;
@@ -72,6 +86,20 @@ TEST(MSGPACK_STL, simple_buffer_vector_char)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_vector_char_empty)
+{
+    typedef vector<char, test::allocator<char> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::BIN);
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_vector_unsigned_char)
 {
     typedef vector<unsigned char, test::allocator<unsigned char> > type;
@@ -90,6 +118,20 @@ TEST(MSGPACK_STL, simple_buffer_vector_unsigned_char)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_vector_unsigned_char_empty)
+{
+    typedef vector<unsigned char, test::allocator<unsigned char> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::BIN);
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_vector_uint8_t)
 {
     if (!msgpack::is_same<uint8_t, unsigned char>::value) return;
@@ -109,6 +151,21 @@ TEST(MSGPACK_STL, simple_buffer_vector_uint8_t)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_vector_uint8_t_empty)
+{
+    if (!msgpack::is_same<uint8_t, unsigned char>::value) return;
+    typedef vector<uint8_t, test::allocator<uint8_t> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::BIN);
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_vector_bool)
 {
     typedef vector<bool, test::allocator<bool> > type;
@@ -125,6 +182,20 @@ TEST(MSGPACK_STL, simple_buffer_vector_bool)
     EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
 }
 
+TEST(MSGPACK_STL, simple_buffer_vector_bool_empty)
+{
+    typedef vector<bool, test::allocator<bool> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::ARRAY);
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 
 TEST(MSGPACK_STL, simple_buffer_assoc_vector)
 {
@@ -144,6 +215,19 @@ TEST(MSGPACK_STL, simple_buffer_assoc_vector)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_assoc_vector_empty)
+{
+    typedef msgpack::type::assoc_vector<int, int, test::less<int>, test::allocator<std::pair<int, int> > >type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_map)
 {
     typedef map<int, int, test::less<int>, test::allocator<std::pair<const int, int> > > type;
@@ -161,6 +245,19 @@ TEST(MSGPACK_STL, simple_buffer_map)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_map_empty)
+{
+    typedef map<int, int, test::less<int>, test::allocator<std::pair<const int, int> > > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_deque)
 {
     typedef deque<int, test::allocator<int> > type;
@@ -178,6 +275,19 @@ TEST(MSGPACK_STL, simple_buffer_deque)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_deque_empty)
+{
+    typedef deque<int, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_list)
 {
     typedef list<int, test::allocator<int> > type;
@@ -195,6 +305,19 @@ TEST(MSGPACK_STL, simple_buffer_list)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_list_empty)
+{
+    typedef list<int, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type const& val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_set)
 {
     typedef set<int, test::less<int>, test::allocator<int> > type;
@@ -212,6 +335,19 @@ TEST(MSGPACK_STL, simple_buffer_set)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_set_empty)
+{
+    typedef set<int, test::less<int>, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_STL, simple_buffer_pair)
 {
     for (unsigned int k = 0; k < kLoop; k++) {
@@ -256,6 +392,18 @@ TEST(MSGPACK_STL, simple_buffer_multimap)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_multimap_empty)
+{
+    typedef multimap<int, int, test::less<int>, test::allocator<std::pair<const int, int> > > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 TEST(MSGPACK_STL, simple_buffer_multiset)
 {
     typedef multiset<int, test::less<int>, test::allocator<int> > type;
@@ -283,6 +431,18 @@ TEST(MSGPACK_STL, simple_buffer_multiset)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_multiset_empty)
+{
+    typedef multiset<int, test::less<int>, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 TEST(MSGPACK_TUPLE, simple_tuple)
 {
     msgpack::sbuffer sbuf;
@@ -350,6 +510,18 @@ TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_map)
     }
 }
 
+TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_map_empty)
+{
+    typedef tr1::unordered_map<int, int, test::tr1_hash<int>, test::equal_to<int>, test::allocator<std::pair<const int, int> > > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_multimap)
 {
     typedef tr1::unordered_multimap<int, int, test::tr1_hash<int>, test::equal_to<int>, test::allocator<std::pair<const int, int> > > type;
@@ -379,6 +551,19 @@ TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_multimap)
         EXPECT_TRUE(v1 == v2);
     }
 }
+
+TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_multimap_empty)
+{
+    typedef tr1::unordered_multimap<int, int, test::tr1_hash<int>, test::equal_to<int>, test::allocator<std::pair<const int, int> > > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 #endif
 
 #ifdef MSGPACK_HAS_STD_TR1_UNORDERED_SET
@@ -403,6 +588,18 @@ TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_set)
     }
 }
 
+TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_set_empty)
+{
+    typedef tr1::unordered_set<int, test::tr1_hash<int>, test::equal_to<int>, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_multiset)
 {
     typedef tr1::unordered_multiset<int, test::tr1_hash<int>, test::equal_to<int>, test::allocator<int> > type;
@@ -429,6 +626,19 @@ TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_multiset)
         EXPECT_TRUE(v1 == v2);
     }
 }
+
+TEST(MSGPACK_TR1, simple_buffer_tr1_unordered_multiset_empty)
+{
+    typedef tr1::unordered_multiset<int, test::tr1_hash<int>, test::equal_to<int>, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 #endif
 
 #if defined (MSGPACK_HAS_STD_UNORDERED_MAP) || defined (MSGPACK_HAS_STD_UNORDERED_SET)
@@ -469,6 +679,18 @@ TEST(MSGPACK_TR1, simple_buffer_unordered_map)
     }
 }
 
+TEST(MSGPACK_TR1, simple_buffer_unordered_map_empty)
+{
+    typedef unordered_map<int, int, test::hash<int>, test::equal_to<int>, test::allocator<std::pair<const int, int> > > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 TEST(MSGPACK_TR1, simple_buffer_unordered_multimap)
 {
     typedef unordered_multimap<int, int, test::hash<int>, test::equal_to<int>, test::allocator<std::pair<const int, int> > > type;
@@ -498,6 +720,19 @@ TEST(MSGPACK_TR1, simple_buffer_unordered_multimap)
         EXPECT_TRUE(v1 == v2);
     }
 }
+
+TEST(MSGPACK_TR1, simple_buffer_unordered_multimap_empty)
+{
+    typedef unordered_multimap<int, int, test::hash<int>, test::equal_to<int>, test::allocator<std::pair<const int, int> > > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 #endif
 
 #ifdef MSGPACK_HAS_STD_UNORDERED_SET
@@ -523,6 +758,18 @@ TEST(MSGPACK_TR1, simple_buffer_unordered_set)
     }
 }
 
+TEST(MSGPACK_TR1, simple_buffer_unordered_set_empty)
+{
+    typedef unordered_set<int, test::hash<int>, test::equal_to<int>, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 TEST(MSGPACK_TR1, simple_buffer_unordered_multiset)
 {
     typedef unordered_multiset<int, test::hash<int>, test::equal_to<int>, test::allocator<int> > type;
@@ -549,4 +796,17 @@ TEST(MSGPACK_TR1, simple_buffer_unordered_multiset)
         EXPECT_TRUE(v1 == v2);
     }
 }
+
+TEST(MSGPACK_TR1, simple_buffer_unordered_multiset_empty)
+{
+    typedef unordered_multiset<int, test::hash<int>, test::equal_to<int>, test::allocator<int> > type;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1.size(), val2.size());
+}
+
 #endif

test/msgpack_cpp11.cpp

@@ -76,6 +76,19 @@ TEST(MSGPACK_CPP11, simple_array)
     }
 }
 
+TEST(MSGPACK_CPP11, simple_array_empty)
+{
+    array<int, 0> val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::ARRAY);
+    array<int, 0> val2 = ret.get().as<array<int, 0> >();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_CPP11, simple_buffer_array_char)
 {
     for (unsigned int k = 0; k < kLoop; k++) {
@@ -93,6 +106,19 @@ TEST(MSGPACK_CPP11, simple_buffer_array_char)
     }
 }
 
+TEST(MSGPACK_CPP11, simple_buffer_array_char_empty)
+{
+    array<char, 0> val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::BIN);
+    array<char, 0> val2 = ret.get().as<array<char, 0> >();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 TEST(MSGPACK_CPP11, simple_buffer_array_unsigned_char)
 {
     if (!msgpack::is_same<uint8_t, unsigned char>::value) return;
@@ -111,6 +137,20 @@ TEST(MSGPACK_CPP11, simple_buffer_array_unsigned_char)
     }
 }
 
+TEST(MSGPACK_CPP11, simple_buffer_array_unsigned_char_empty)
+{
+    if (!msgpack::is_same<uint8_t, unsigned char>::value) return;
+    array<unsigned char, 0> val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    EXPECT_EQ(ret.get().type, msgpack::type::BIN);
+    array<unsigned char, 0> val2 = ret.get().as<array<unsigned char, 0> >();
+    EXPECT_EQ(val1.size(), val2.size());
+    EXPECT_TRUE(equal(val1.begin(), val1.end(), val2.begin()));
+}
+
 // strong typedefs
 namespace test {
 
@@ -158,6 +198,18 @@ TEST(MSGPACK_STL, simple_buffer_forward_list)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_forward_list_empty)
+{
+    using type = forward_list<int, test::allocator<int>>;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type >();
+    EXPECT_EQ(val1, val2);
+}
+
 TEST(MSGPACK_STL, simple_buffer_unordered_map)
 {
     using type = unordered_map<int, int, test::hash<int>, test::equal_to<int>, test::map_allocator<int, int>>;
@@ -174,6 +226,18 @@ TEST(MSGPACK_STL, simple_buffer_unordered_map)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_unordered_map_empty)
+{
+    using type = unordered_map<int, int, test::hash<int>, test::equal_to<int>, test::map_allocator<int, int>>;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type >();
+    EXPECT_EQ(val1, val2);
+}
+
 TEST(MSGPACK_STL, simple_buffer_unordered_multimap)
 {
     using type = unordered_multimap<int, int, test::hash<int>, test::equal_to<int>, test::map_allocator<int, int>>;
@@ -194,6 +258,19 @@ TEST(MSGPACK_STL, simple_buffer_unordered_multimap)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_unordered_multimap_empty)
+{
+    using type = unordered_multimap<int, int, test::hash<int>, test::equal_to<int>, test::map_allocator<int, int>>;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type >();
+
+    EXPECT_EQ(val1, val2);
+}
+
 TEST(MSGPACK_STL, simple_buffer_unordered_set)
 {
     using type = unordered_set<int, test::hash<int>, test::equal_to<int>, test::set_allocator<int>>;
@@ -210,6 +287,18 @@ TEST(MSGPACK_STL, simple_buffer_unordered_set)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_unordered_set_empty)
+{
+    using type = unordered_set<int, test::hash<int>, test::equal_to<int>, test::set_allocator<int>>;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type>();
+    EXPECT_EQ(val1, val2);
+}
+
 TEST(MSGPACK_STL, simple_buffer_unordered_multiset)
 {
     using type = unordered_multiset<int, test::hash<int>, test::equal_to<int>, test::set_allocator<int>>;
@@ -226,6 +315,18 @@ TEST(MSGPACK_STL, simple_buffer_unordered_multiset)
     }
 }
 
+TEST(MSGPACK_STL, simple_buffer_unordered_multiset_empty)
+{
+    using type = unordered_multiset<int, test::hash<int>, test::equal_to<int>, test::set_allocator<int>>;
+    type val1;
+    msgpack::sbuffer sbuf;
+    msgpack::pack(sbuf, val1);
+    msgpack::unpacked ret;
+    msgpack::unpack(ret, sbuf.data(), sbuf.size());
+    type val2 = ret.get().as<type >();
+    EXPECT_EQ(val1, val2);
+}
+
 TEST(MSGPACK_USER_DEFINED, simple_buffer_enum_class_member)
 {
     TestEnumClassMemberClass val1;