diff --git a/CHANGELOG.md b/CHANGELOG.md
index e1a6a150..06ee5a94 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ Version 62:
 * Add server-framework tests
 * Doc fixes and tidy
 * Tidy up namespaces in examples
+* Clear the error faster
 
 --------------------------------------------------------------------------------
 
diff --git a/extras/beast/test/fail_counter.hpp b/extras/beast/test/fail_counter.hpp
index 29a601ef..8c577cbe 100644
--- a/extras/beast/test/fail_counter.hpp
+++ b/extras/beast/test/fail_counter.hpp
@@ -149,7 +149,7 @@ public:
             ec = ec_;
             return true;
         }
-        ec = {};
+        ec.assign(0, ec.category());
         return false;
     }
 };
diff --git a/extras/beast/test/pipe_stream.hpp b/extras/beast/test/pipe_stream.hpp
index 8d1a019f..b4069024 100644
--- a/extras/beast/test/pipe_stream.hpp
+++ b/extras/beast/test/pipe_stream.hpp
@@ -196,7 +196,7 @@ public:
         teardown(websocket::teardown_tag,
             stream&, boost::system::error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         template<class TeardownHandler>
@@ -368,7 +368,7 @@ read_some(MutableBufferSequence const& buffers,
     std::size_t bytes_transferred;
     if(in_.b.size() > 0)
     {   
-        ec = {};
+        ec.assign(0, ec.category());
         bytes_transferred = buffer_copy(
             buffers, in_.b.data(), read_max_);
         in_.b.consume(bytes_transferred);
@@ -480,7 +480,7 @@ write_some(
     else
         out_.cv.notify_all();
     ++nwrite;
-    ec = {};
+    ec.assign(0, ec.category());
     return bytes_transferred;
 }
 
diff --git a/extras/beast/test/string_iostream.hpp b/extras/beast/test/string_iostream.hpp
index 77a634bd..d735d59c 100644
--- a/extras/beast/test/string_iostream.hpp
+++ b/extras/beast/test/string_iostream.hpp
@@ -73,7 +73,7 @@ public:
             buffers, buffer_prefix(read_max_, cb_));
         if(n > 0)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             cb_ = cb_ + n;
         }
         else
@@ -119,7 +119,7 @@ public:
     write_some(
         ConstBufferSequence const& buffers, error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         using boost::asio::buffer_size;
         using boost::asio::buffer_cast;
         auto const n = buffer_size(buffers);
@@ -151,7 +151,7 @@ public:
         string_iostream& stream,
             boost::system::error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
     }
 
     template<class TeardownHandler>
diff --git a/extras/beast/test/string_istream.hpp b/extras/beast/test/string_istream.hpp
index 86f1af52..2e610f79 100644
--- a/extras/beast/test/string_istream.hpp
+++ b/extras/beast/test/string_istream.hpp
@@ -70,7 +70,7 @@ public:
             buffers, cb_, read_max_);
         if(n > 0)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             cb_ = cb_ + n;
         }
         else
@@ -116,7 +116,7 @@ public:
     write_some(ConstBufferSequence const& buffers,
         error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         return boost::asio::buffer_size(buffers);
     }
 
@@ -139,7 +139,7 @@ public:
         string_istream& stream,
             boost::system::error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
     }
 
     template<class TeardownHandler>
diff --git a/extras/beast/test/string_ostream.hpp b/extras/beast/test/string_ostream.hpp
index 7a44fb49..530d623a 100644
--- a/extras/beast/test/string_ostream.hpp
+++ b/extras/beast/test/string_ostream.hpp
@@ -93,7 +93,7 @@ public:
     write_some(
         ConstBufferSequence const& buffers, error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         using boost::asio::buffer_size;
         using boost::asio::buffer_cast;
         auto const n =
@@ -127,7 +127,7 @@ public:
         string_ostream& stream,
             boost::system::error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
     }
 
     template<class TeardownHandler>
diff --git a/include/beast/core/impl/buffered_read_stream.ipp b/include/beast/core/impl/buffered_read_stream.ipp
index 428db15a..725c8db0 100644
--- a/include/beast/core/impl/buffered_read_stream.ipp
+++ b/include/beast/core/impl/buffered_read_stream.ipp
@@ -227,7 +227,7 @@ read_some(MutableBufferSequence const& buffers,
     }
     else
     {
-        ec = {};
+        ec.assign(0, ec.category());
     }
     auto bytes_transferred =
         buffer_copy(buffers, sb_.data());
diff --git a/include/beast/http/buffer_body.hpp b/include/beast/http/buffer_body.hpp
index 4de08315..485e87df 100644
--- a/include/beast/http/buffer_body.hpp
+++ b/include/beast/http/buffer_body.hpp
@@ -112,7 +112,7 @@ struct buffer_body
         void
         init(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         boost::optional<
@@ -128,13 +128,13 @@ struct buffer_body
                 }
                 else
                 {
-                    ec = {};
+                    ec.assign(0, ec.category());
                 }
                 return boost::none;
             }
             if(body_.data)
             {
-                ec = {};
+                ec.assign(0, ec.category());
                 toggle_ = true;
                 return {{const_buffers_type{
                     body_.data, body_.size}, body_.more}};
@@ -142,14 +142,14 @@ struct buffer_body
             if(body_.more)
                 ec = error::need_buffer;
             else
-                ec = {};
+                ec.assign(0, ec.category());
             return boost::none;
         }
 
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
@@ -173,7 +173,7 @@ struct buffer_body
         void
         init(boost::optional<std::uint64_t>, error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         template<class ConstBufferSequence>
@@ -189,7 +189,7 @@ struct buffer_body
                 ec = error::need_buffer;
                 return;
             }
-            ec = {};
+            ec.assign(0, ec.category());
             auto const bytes_transferred =
                 buffer_copy(boost::asio::buffer(
                     body_.data, body_.size), buffers);
@@ -201,7 +201,7 @@ struct buffer_body
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
diff --git a/include/beast/http/detail/basic_parser.hpp b/include/beast/http/detail/basic_parser.hpp
index dd9018f9..ed1fd9be 100644
--- a/include/beast/http/detail/basic_parser.hpp
+++ b/include/beast/http/detail/basic_parser.hpp
@@ -389,14 +389,14 @@ protected:
         {
             if(it == last)
             {
-                ec = {};
+                ec.assign(0, ec.category());
                 return nullptr;
             }
             if(*it == '\r')
             {
                 if(++it == last)
                 {
-                    ec = {};
+                    ec.assign(0, ec.category());
                     return nullptr;
                 }
                 if(*it != '\n')
@@ -404,7 +404,7 @@ protected:
                     ec = error::bad_line_ending;
                     return nullptr;
                 }
-                ec = {};
+                ec.assign(0, ec.category());
                 return ++it;
             }
             // VFALCO Should we handle the legacy case
@@ -425,14 +425,14 @@ protected:
         {
             if(it == last)
             {
-                ec = {};
+                ec.assign(0, ec.category());
                 return nullptr;
             }
             if(*it == '\r')
             {
                 if(++it == last)
                 {
-                    ec = {};
+                    ec.assign(0, ec.category());
                     return nullptr;
                 }
                 if(*it != '\n')
@@ -442,7 +442,7 @@ protected:
                 }
                 if(++it == last)
                 {
-                    ec = {};
+                    ec.assign(0, ec.category());
                     return nullptr;
                 }
                 if(*it != '\r')
@@ -452,7 +452,7 @@ protected:
                 }
                 if(++it == last)
                 {
-                    ec = {};
+                    ec.assign(0, ec.category());
                     return nullptr;
                 }
                 if(*it != '\n')
@@ -460,7 +460,7 @@ protected:
                     ec = error::bad_line_ending;
                     return nullptr;
                 }
-                ec = {};
+                ec.assign(0, ec.category());
                 return ++it;
             }
             // VFALCO Should we handle the legacy case
diff --git a/include/beast/http/dynamic_body.hpp b/include/beast/http/dynamic_body.hpp
index e6bb94f4..eb4d7586 100644
--- a/include/beast/http/dynamic_body.hpp
+++ b/include/beast/http/dynamic_body.hpp
@@ -61,20 +61,20 @@ struct basic_dynamic_body
         void
         init(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         boost::optional<std::pair<const_buffers_type, bool>>
         get(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             return {{body_.data(), false}};
         }
 
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
@@ -100,7 +100,7 @@ struct basic_dynamic_body
         init(boost::optional<
             std::uint64_t> const&, error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         template<class ConstBufferSequence>
@@ -122,14 +122,14 @@ struct basic_dynamic_body
                 ec = error::buffer_overflow;
                 return;
             }
-            ec = {};
+            ec.assign(0, ec.category());
             body_.commit(buffer_copy(*b, buffers));
         }
 
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
diff --git a/include/beast/http/empty_body.hpp b/include/beast/http/empty_body.hpp
index 59b31d5d..684cac53 100644
--- a/include/beast/http/empty_body.hpp
+++ b/include/beast/http/empty_body.hpp
@@ -64,20 +64,20 @@ struct empty_body
         void
         init(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         boost::optional<std::pair<const_buffers_type, bool>>
         get(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             return boost::none;
         }
 
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
@@ -98,7 +98,7 @@ struct empty_body
         init(boost::optional<std::uint64_t> const&,
             error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         template<class ConstBufferSequence>
@@ -112,7 +112,7 @@ struct empty_body
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
diff --git a/include/beast/http/impl/basic_parser.ipp b/include/beast/http/impl/basic_parser.ipp
index 73bb48ea..9a76272c 100644
--- a/include/beast/http/impl/basic_parser.ipp
+++ b/include/beast/http/impl/basic_parser.ipp
@@ -94,7 +94,7 @@ put(ConstBufferSequence const& buffers,
     auto const last = buffers.end();
     if(p == last)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         return 0;
     }
     if(std::next(p) == last)
@@ -198,7 +198,7 @@ loop:
         break;
 
     case state::complete:
-        ec = {};
+        ec.assign(0, ec.category());
         goto done;
     }
     if(p < p1 && ! is_done() && eager())
@@ -228,7 +228,7 @@ put_eof(error_code& ec)
             ec = error::partial_message;
             return;
         }
-        ec = {};
+        ec.assign(0, ec.category());
         return;
     }
     impl().on_complete(ec);
@@ -793,7 +793,7 @@ do_field(field f,
                 continue;
             }
         }
-        ec = {};
+        ec.assign(0, ec.category());
         return;
     }
 
@@ -832,7 +832,7 @@ do_field(field f,
             return;
         }
 
-        ec = {};
+        ec.assign(0, ec.category());
         len_ = v;
         f_ |= flagContentLength;
         return;
@@ -855,7 +855,7 @@ do_field(field f,
             return;
         }
 
-        ec = {};
+        ec.assign(0, ec.category());
         auto const v = token_list{value};
         auto const p = std::find_if(v.begin(), v.end(),
             [&](typename token_list::value_type const& s)
@@ -874,12 +874,12 @@ do_field(field f,
     // Upgrade
     if(f == field::upgrade)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         f_ |= flagUpgrade;
         return;
     }
 
-    ec = {};
+    ec.assign(0, ec.category());
 }
 
 } // http
diff --git a/include/beast/http/impl/read.ipp b/include/beast/http/impl/read.ipp
index b0108719..04885a25 100644
--- a/include/beast/http/impl/read.ipp
+++ b/include/beast/http/impl/read.ipp
@@ -121,7 +121,7 @@ operator()(error_code ec, std::size_t bytes_transferred)
             if(p_.got_some())
             {
                 // caller sees EOF on next read
-                ec = {};
+                ec.assign(0, ec.category());
                 p_.put_eof(ec);
                 if(ec)
                     goto upcall;
@@ -139,7 +139,7 @@ operator()(error_code ec, std::size_t bytes_transferred)
         b_.consume(p_.put(b_.data(), ec));
         if(! ec || ec != http::error::need_more)
             goto do_upcall;
-        ec = {};
+        ec.assign(0, ec.category());
 
     do_read:
         try
@@ -570,7 +570,7 @@ read_header(
     parser.eager(false);
     if(parser.is_header_done())
     {
-        ec = {};
+        ec.assign(0, ec.category());
         return;
     }
     do
@@ -649,7 +649,7 @@ read(
     parser.eager(true);
     if(parser.is_done())
     {
-        ec = {};
+        ec.assign(0, ec.category());
         return;
     }
     do
diff --git a/include/beast/http/impl/write.ipp b/include/beast/http/impl/write.ipp
index bcfb4ab2..287f6b31 100644
--- a/include/beast/http/impl/write.ipp
+++ b/include/beast/http/impl/write.ipp
@@ -56,7 +56,7 @@ class write_some_op
         operator()(error_code& ec,
             ConstBufferSequence const& buffer)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             invoked = true;
             return op_.s_.async_write_some(
                 buffer, std::move(op_));
@@ -213,7 +213,7 @@ class write_op
         operator()(error_code& ec,
             ConstBufferSequence const& buffer)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             invoked = true;
             return op_.s_.async_write_some(
                 buffer, std::move(op_));
@@ -537,7 +537,7 @@ write_some(SyncWriteStream& stream, serializer<
     detail::write_some_lambda<SyncWriteStream> f{stream};
     if(sr.is_done())
     {
-        ec = {};
+        ec.assign(0, ec.category());
         return;
     }
     sr.get(ec, f);
@@ -609,7 +609,7 @@ write_header(SyncWriteStream& stream, serializer<
     sr.split(true);
     if(sr.is_header_done())
     {
-        ec = {};
+        ec.assign(0, ec.category());
         return;
     }
     detail::write_lambda<SyncWriteStream> f{stream};
@@ -680,7 +680,7 @@ write(SyncWriteStream& stream, serializer<
     sr.split(false);
     if(sr.is_done())
     {
-        ec = {};
+        ec.assign(0, ec.category());
         return;
     }
     detail::write_lambda<SyncWriteStream> f{stream};
@@ -808,7 +808,7 @@ public:
     operator()(error_code& ec,
         ConstBufferSequence const& buffers) const
     {
-        ec = {};
+        ec.assign(0, ec.category());
         if(os_.fail())
             return;
         std::size_t bytes_transferred = 0;
@@ -868,7 +868,7 @@ operator<<(std::ostream& os,
         if(os.fail())
             break;
         if(ec == error::end_of_stream)
-            ec = {};
+            ec.assign(0, ec.category());
         if(ec)
         {
             os.setstate(std::ios::failbit);
diff --git a/include/beast/http/parser.hpp b/include/beast/http/parser.hpp
index 73af94ac..c6c4ec46 100644
--- a/include/beast/http/parser.hpp
+++ b/include/beast/http/parser.hpp
@@ -185,7 +185,7 @@ private:
     on_request(verb method, string_view method_str,
         string_view target, int version, error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         m_.target(target);
         if(method != verb::unknown)
             m_.method(method);
@@ -199,7 +199,7 @@ private:
         string_view reason,
             int version, error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         m_.result(code);
         m_.version = version;
         m_.reason(reason);
@@ -209,14 +209,14 @@ private:
     on_field(field name, string_view name_string,
         string_view value, error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
         m_.insert(name, name_string, value);
     }
 
     void
     on_header(error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
     }
 
     void
@@ -239,7 +239,7 @@ private:
     on_chunk(std::uint64_t,
         string_view, error_code& ec)
     {
-        ec = {};
+        ec.assign(0, ec.category());
     }
 
     void
@@ -248,7 +248,7 @@ private:
         if(wr_)
             wr_->finish(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 };
 
diff --git a/include/beast/http/string_body.hpp b/include/beast/http/string_body.hpp
index eaccc9dc..faee6943 100644
--- a/include/beast/http/string_body.hpp
+++ b/include/beast/http/string_body.hpp
@@ -63,13 +63,13 @@ struct string_body
         void
         init(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         boost::optional<std::pair<const_buffers_type, bool>>
         get(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             return {{const_buffers_type{
                 body_.data(), body_.size()}, false}};
         }
@@ -77,7 +77,7 @@ struct string_body
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
@@ -111,7 +111,7 @@ struct string_body
                         errc::not_enough_memory);
                     return;
                 }
-                ec = {};
+                ec.assign(0, ec.category());
                 body_.reserve(static_cast<
                     std::size_t>(*content_length));
             }
@@ -135,7 +135,7 @@ struct string_body
                 ec = error::buffer_overflow;
                 return;
             }
-            ec = {};
+            ec.assign(0, ec.category());
             buffer_copy(boost::asio::buffer(
                 &body_[0] + len, n), buffers);
         }
@@ -143,7 +143,7 @@ struct string_body
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
diff --git a/include/beast/http/string_view_body.hpp b/include/beast/http/string_view_body.hpp
index 2250694e..de57c48c 100644
--- a/include/beast/http/string_view_body.hpp
+++ b/include/beast/http/string_view_body.hpp
@@ -64,20 +64,20 @@ struct string_view_body
         void
         init(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         boost::optional<std::pair<const_buffers_type, bool>>
         get(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             return {{{body_.data(), body_.size()}, false}};
         }
 
         void
         finish(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 #endif
diff --git a/include/beast/websocket/detail/pmd_extension.hpp b/include/beast/websocket/detail/pmd_extension.hpp
index 83cf8d6b..33978257 100644
--- a/include/beast/websocket/detail/pmd_extension.hpp
+++ b/include/beast/websocket/detail/pmd_extension.hpp
@@ -378,7 +378,7 @@ inflate(
         if( ec == zlib::error::need_buffers ||
             ec == zlib::error::end_of_stream)
         {
-            ec = {};
+            ec.assign(0, ec.category());
             break;
         }
         if(ec)
@@ -420,7 +420,7 @@ deflate(
                 return false;
             BOOST_ASSERT(zs.avail_out == 0);
             BOOST_ASSERT(zs.total_out == buffer_size(out));
-            ec = {};
+            ec.assign(0, ec.category());
             break;
         }
         if(zs.avail_out == 0)
@@ -444,7 +444,7 @@ deflate(
             zo.write(zs, zlib::Flush::block, ec);
             BOOST_ASSERT(! ec || ec == zlib::error::need_buffers);
             if(ec == zlib::error::need_buffers)
-                ec = {};
+                ec.assign(0, ec.category());
             if(ec)
                 return false;
             if(zs.avail_out >= 6)
@@ -459,7 +459,7 @@ deflate(
             }
         }
     }
-    ec = {};
+    ec.assign(0, ec.category());
     out = buffer(
         buffer_cast<void*>(out), zs.total_out);
     return true;
diff --git a/include/beast/websocket/impl/read.ipp b/include/beast/websocket/impl/read.ipp
index eeb82f30..9300b931 100644
--- a/include/beast/websocket/impl/read.ipp
+++ b/include/beast/websocket/impl/read.ipp
@@ -178,7 +178,7 @@ operator()(error_code ec,
     {
         // Rationale:
         // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
-        ec = {};
+        ec.assign(0, ec.category());
     }
     if(! ec)
     {
@@ -960,7 +960,7 @@ do_close:
         {
             // Rationale:
             // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
-            ec = {};
+            ec.assign(0, ec.category());
         }
         failed_ = ec != 0;
         if(failed_)
@@ -975,7 +975,7 @@ do_close:
         if(ec == boost::asio::error::eof)
         {
             // (See above)
-            ec = {};
+            ec.assign(0, ec.category());
         }
     }
     if(! ec)
diff --git a/include/beast/websocket/impl/stream.ipp b/include/beast/websocket/impl/stream.ipp
index ce791296..1e185adf 100644
--- a/include/beast/websocket/impl/stream.ipp
+++ b/include/beast/websocket/impl/stream.ipp
@@ -302,7 +302,7 @@ do_response(http::header<false> const& res,
         ec = error::handshake_failed;
         return;
     }
-    ec = {};
+    ec.assign(0, ec.category());
     detail::pmd_offer offer;
     pmd_read(offer, res);
     // VFALCO see if offer satisfies pmd_config_,
diff --git a/include/beast/zlib/detail/deflate_stream.hpp b/include/beast/zlib/detail/deflate_stream.hpp
index 5af73a7d..03fdcd33 100644
--- a/include/beast/zlib/detail/deflate_stream.hpp
+++ b/include/beast/zlib/detail/deflate_stream.hpp
@@ -997,7 +997,7 @@ doParams(z_params& zs, int level, Strategy strategy, error_code& ec)
         // Flush the last buffer:
         doWrite(zs, Flush::block, ec);
         if(ec == error::need_buffers && pending_ == 0)
-            ec = {};
+            ec.assign(0, ec.category());
     }
     if(level_ != level)
     {
diff --git a/test/http/basic_parser.cpp b/test/http/basic_parser.cpp
index 10bbe4a7..5d6ba86c 100644
--- a/test/http/basic_parser.cpp
+++ b/test/http/basic_parser.cpp
@@ -225,7 +225,7 @@ public:
                 error_code ec;
                 p.put(buffer(s.data(), i), ec);
                 BEAST_EXPECTS(ec == error::need_more, ec.message());
-                ec = {};
+                ec.assign(0, ec.category());
                 p.put(boost::asio::buffer(s.data(), s.size()), ec);
                 BEAST_EXPECTS(! ec, ec.message());
                 BEAST_EXPECT(p.is_done());
@@ -247,7 +247,7 @@ public:
                 error_code ec;
                 p.put(b1, ec);
                 BEAST_EXPECTS(ec == error::need_more, ec.message());
-                ec = {};
+                ec.assign(0, ec.category());
                 p.put(buffer_cat(b1, b2), ec);
                 BEAST_EXPECTS(! ec, ec.message());
                 p.put_eof(ec);
diff --git a/test/http/doc_snippets.cpp b/test/http/doc_snippets.cpp
index 6605fbca..5fc1bac9 100644
--- a/test/http/doc_snippets.cpp
+++ b/test/http/doc_snippets.cpp
@@ -213,7 +213,7 @@ print_cxx14(message<isRequest, Body, Fields> const& m)
         sr.get(ec,
             [&sr](error_code& ec, auto const& buffer)
             {
-                ec = {};
+                ec.assign(0, ec.category());
                 std::cout << buffers(buffer);
                 sr.consume(boost::asio::buffer_size(buffer));
             });
@@ -240,7 +240,7 @@ struct lambda
     template<class ConstBufferSequence>
     void operator()(error_code& ec, ConstBufferSequence const& buffer) const
     {
-        ec = {};
+        ec.assign(0, ec.category());
         std::cout << buffers(buffer);
         sr.consume(boost::asio::buffer_size(buffer));
     }
@@ -281,7 +281,7 @@ split_print_cxx14(message<isRequest, Body, Fields> const& m)
         sr.get(ec,
             [&sr](error_code& ec, auto const& buffer)
             {
-                ec = {};
+                ec.assign(0, ec.category());
                 std::cout << buffers(buffer);
                 sr.consume(boost::asio::buffer_size(buffer));
             });
@@ -295,7 +295,7 @@ split_print_cxx14(message<isRequest, Body, Fields> const& m)
             sr.get(ec,
                 [&sr](error_code& ec, auto const& buffer)
                 {
-                    ec = {};
+                    ec.assign(0, ec.category());
                     std::cout << buffers(buffer);
                     sr.consume(boost::asio::buffer_size(buffer));
                 });
diff --git a/test/http/parser.cpp b/test/http/parser.cpp
index 6a92e46a..a8436718 100644
--- a/test/http/parser.cpp
+++ b/test/http/parser.cpp
@@ -95,7 +95,7 @@ public:
                 p.put(buffer(s.data(), n), ec);
             s.remove_prefix(used);
             if(ec == error::need_more)
-                ec = {};
+                ec.assign(0, ec.category());
             if(! BEAST_EXPECTS(! ec, ec.message()))
                 continue;
             BEAST_EXPECT(! p.is_done());
@@ -256,7 +256,7 @@ public:
             used = p.put(b.data(), ec);
             b.consume(used);
             BEAST_EXPECT(ec == error::need_more);
-            ec = {};
+            ec.assign(0, ec.category());
             BEAST_EXPECT(! p.is_done());
             ostream(b) <<
                 "\r\n"; // final crlf to end message
@@ -300,7 +300,7 @@ public:
             used = p.put(b.data(), ec);
             BEAST_EXPECTS(ec == error::need_more, ec.message());
             b.consume(used);
-            ec = {};
+            ec.assign(0, ec.category());
             ostream(b) <<
                 "User-Agent: test\r\n"
                 "\r\n";
@@ -321,7 +321,7 @@ public:
         BEAST_EXPECT(ec == error::need_more);
         BEAST_EXPECT(! p.got_some());
         BEAST_EXPECT(used == 0);
-        ec = {};
+        ec.assign(0, ec.category());
         used = p.put(buf("G"), ec);
         BEAST_EXPECT(ec == error::need_more);
         BEAST_EXPECT(p.got_some());
diff --git a/test/http/parser_bench.cpp b/test/http/parser_bench.cpp
index 438eeb7f..9c5a5a33 100644
--- a/test/http/parser_bench.cpp
+++ b/test/http/parser_bench.cpp
@@ -168,7 +168,7 @@ public:
         on_request(verb, string_view,
             string_view, int, error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         void
@@ -176,34 +176,34 @@ public:
             string_view,
                 int, error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         void
         on_field(field,
             string_view, string_view, error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         void
         on_header(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         void
         on_body(boost::optional<std::uint64_t> const&,
             error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         void
         on_data(string_view,
             error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         void
@@ -211,13 +211,13 @@ public:
             string_view,
                 error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
 
         void
         on_complete(error_code& ec)
         {
-            ec = {};
+            ec.assign(0, ec.category());
         }
     };
 
diff --git a/test/http/test_parser.hpp b/test/http/test_parser.hpp
index 84a0eb19..c45570f8 100644
--- a/test/http/test_parser.hpp
+++ b/test/http/test_parser.hpp
@@ -59,7 +59,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 
     void
@@ -75,7 +75,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 
     void
@@ -86,7 +86,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 
     void
@@ -96,7 +96,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 
     void
@@ -110,7 +110,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 
     void
@@ -121,7 +121,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 
     void
@@ -132,7 +132,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 
     void
@@ -142,7 +142,7 @@ public:
         if(fc_)
             fc_->fail(ec);
         else
-            ec = {};
+            ec.assign(0, ec.category());
     }
 };
 
diff --git a/test/http/write.cpp b/test/http/write.cpp
index f68b5774..e9fbda6c 100644
--- a/test/http/write.cpp
+++ b/test/http/write.cpp
@@ -57,13 +57,13 @@ public:
             void
             init(error_code& ec)
             {
-                ec = {};
+                ec.assign(0, ec.category());
             }
             
             boost::optional<std::pair<const_buffers_type, bool>>
             get(error_code& ec)
             {
-                ec = {};
+                ec.assign(0, ec.category());
                 return {{const_buffers_type{
                     body_.data(), body_.size()}, false}};
             }
@@ -71,7 +71,7 @@ public:
             void
             finish(error_code& ec)
             {
-                ec = {};
+                ec.assign(0, ec.category());
             }
         };
     };
@@ -112,13 +112,13 @@ public:
             void
             init(error_code& ec)
             {
-                ec = {};
+                ec.assign(0, ec.category());
             }
 
             boost::optional<std::pair<const_buffers_type, bool>>
             get(error_code& ec)
             {
-                ec = {};
+                ec.assign(0, ec.category());
                 body_.read = true;
                 return get(
                     std::integral_constant<bool, isSplit>{},
@@ -128,7 +128,7 @@ public:
             void
             finish(error_code& ec)
             {
-                ec = {};
+                ec.assign(0, ec.category());
             }
 
         private:
diff --git a/test/server/tests.cpp b/test/server/tests.cpp
index 13643447..efd4b456 100644
--- a/test/server/tests.cpp
+++ b/test/server/tests.cpp
@@ -224,7 +224,7 @@ public:
         con.shutdown(ec);
         // VFALCO No idea why we get eof in the normal case
         if(ec == boost::asio::error::eof)
-            ec = {};
+            ec.assign(0, ec.category());
         if(! BEAST_EXPECTS(! ec, ec.message()))
             return;
     }