Fixed build error and updated asio

Author: smasherprog

include/asio.hpp

@@ -62,6 +62,7 @@
 #include "asio/handler_continuation_hook.hpp"
 #include "asio/handler_invoke_hook.hpp"
 #include "asio/handler_type.hpp"
+#include "asio/high_resolution_timer.hpp"
 #include "asio/io_context.hpp"
 #include "asio/io_context_strand.hpp"
 #include "asio/io_service.hpp"
@@ -117,12 +118,14 @@
 #include "asio/signal_set_service.hpp"
 #include "asio/socket_acceptor_service.hpp"
 #include "asio/socket_base.hpp"
+#include "asio/steady_timer.hpp"
 #include "asio/strand.hpp"
 #include "asio/stream_socket_service.hpp"
 #include "asio/streambuf.hpp"
 #include "asio/system_context.hpp"
 #include "asio/system_error.hpp"
 #include "asio/system_executor.hpp"
+#include "asio/system_timer.hpp"
 #include "asio/thread.hpp"
 #include "asio/thread_pool.hpp"
 #include "asio/time_traits.hpp"

include/asio/buffer.hpp

@@ -28,13 +28,13 @@
 #include "asio/detail/throw_exception.hpp"
 #include "asio/detail/type_traits.hpp"
 
-#if defined(ASIO_MSVC)
+#if defined(ASIO_MSVC) && (ASIO_MSVC >= 1700)
 # if defined(_HAS_ITERATOR_DEBUGGING) && (_HAS_ITERATOR_DEBUGGING != 0)
 #  if !defined(ASIO_DISABLE_BUFFER_DEBUGGING)
 #   define ASIO_ENABLE_BUFFER_DEBUGGING
 #  endif // !defined(ASIO_DISABLE_BUFFER_DEBUGGING)
 # endif // defined(_HAS_ITERATOR_DEBUGGING)
-#endif // defined(ASIO_MSVC)
+#endif // defined(ASIO_MSVC) && (ASIO_MSVC >= 1700)
 
 #if defined(__GNUC__)
 # if defined(_GLIBCXX_DEBUG)
@@ -1920,7 +1920,8 @@ inline std::size_t buffer_copy_1(const mutable_buffer& target,
   std::size_t target_size = target.size();
   std::size_t source_size = source.size();
   std::size_t n = target_size < source_size ? target_size : source_size;
-  memcpy(target.data(), source.data(), n);
+  if (n > 0)
+    memcpy(target.data(), source.data(), n);
   return n;
 }
 

include/asio/coroutine.hpp

@@ -289,7 +289,7 @@ class coroutine_ref
       bail_out_of_coroutine: \
       break; \
     } \
-    else case 0:
+    else /* fall-through */ case 0:
 
 #define ASIO_CORO_YIELD_IMPL(n) \
   for (_coro_value = (n);;) \
@@ -301,12 +301,12 @@ class coroutine_ref
     else \
       switch (_coro_value ? 0 : 1) \
         for (;;) \
-          case -1: if (_coro_value) \
+          /* fall-through */ case -1: if (_coro_value) \
             goto terminate_coroutine; \
           else for (;;) \
-            case 1: if (_coro_value) \
+            /* fall-through */ case 1: if (_coro_value) \
               goto bail_out_of_coroutine; \
-            else case 0:
+            else /* fall-through */ case 0:
 
 #define ASIO_CORO_FORK_IMPL(n) \
   for (_coro_value = -(n);; _coro_value = (n)) \