Fix long lines.
diff --git a/asio/include/asio/detail/config.hpp b/asio/include/asio/detail/config.hpp
index 8892334..afb7094 100644
--- a/asio/include/asio/detail/config.hpp
+++ b/asio/include/asio/detail/config.hpp
@@ -545,11 +545,15 @@
 
 // Microsoft Visual C++'s secure C runtime library.
 #if !defined(ASIO_DISABLE_SECURE_RTL)
-# if defined(ASIO_MSVC) && (ASIO_MSVC >= 1400) && !defined(UNDER_CE)
+# if defined(ASIO_MSVC) \
+  && (ASIO_MSVC >= 1400) \
+  && !defined(UNDER_CE)
 #  if !defined(ASIO_HAS_SECURE_RTL)
 #   define ASIO_HAS_SECURE_RTL 1
 #  endif // !defined(ASIO_HAS_SECURE_RTL)
-# endif // defined(ASIO_MSVC) && (ASIO_MSVC >= 1400) && !defined(UNDER_CE)
+# endif // defined(ASIO_MSVC)
+        // && (ASIO_MSVC >= 1400)
+        // && !defined(UNDER_CE)
 #endif // !defined(ASIO_DISABLE_SECURE_RTL)
 
 // Handler hooking. Disabled for ancient Borland C++ and gcc compilers.
diff --git a/asio/include/asio/detail/win_fenced_block.hpp b/asio/include/asio/detail/win_fenced_block.hpp
index 695497f..189328a 100644
--- a/asio/include/asio/detail/win_fenced_block.hpp
+++ b/asio/include/asio/detail/win_fenced_block.hpp
@@ -44,7 +44,8 @@
 #if defined(__BORLANDC__)
     LONG barrier = 0;
     ::InterlockedExchange(&barrier, 1);
-#elif defined(ASIO_MSVC) && ((ASIO_MSVC < 1400) || !defined(MemoryBarrier))
+#elif defined(ASIO_MSVC) \
+  && ((ASIO_MSVC < 1400) || !defined(MemoryBarrier))
 # if defined(_M_IX86)
 #  pragma warning(push)
 #  pragma warning(disable:4793)
@@ -63,7 +64,8 @@
 #if defined(__BORLANDC__)
     LONG barrier = 0;
     ::InterlockedExchange(&barrier, 1);
-#elif defined(ASIO_MSVC) && ((ASIO_MSVC < 1400) || !defined(MemoryBarrier))
+#elif defined(ASIO_MSVC) \
+  && ((ASIO_MSVC < 1400) || !defined(MemoryBarrier))
 # if defined(_M_IX86)
 #  pragma warning(push)
 #  pragma warning(disable:4793)
diff --git a/asio/src/tests/unit/read_at.cpp b/asio/src/tests/unit/read_at.cpp
index cb034cb..3e4f64e 100644
--- a/asio/src/tests/unit/read_at.cpp
+++ b/asio/src/tests/unit/read_at.cpp
@@ -92,7 +92,8 @@
   }
 
   template <typename Mutable_Buffers>
-  size_t read_some_at(asio::uint64_t offset, const Mutable_Buffers& buffers)
+  size_t read_some_at(asio::uint64_t offset,
+      const Mutable_Buffers& buffers)
   {
     return asio::buffer_copy(buffers,
         asio::buffer(data_, length_) + offset,
diff --git a/asio/src/tests/unit/write_at.cpp b/asio/src/tests/unit/write_at.cpp
index 8df5eb3..1ef6382 100644
--- a/asio/src/tests/unit/write_at.cpp
+++ b/asio/src/tests/unit/write_at.cpp
@@ -84,7 +84,8 @@
   }
 
   template <typename Const_Buffers>
-  size_t write_some_at(asio::uint64_t offset, const Const_Buffers& buffers)
+  size_t write_some_at(asio::uint64_t offset,
+      const Const_Buffers& buffers)
   {
     return asio::buffer_copy(
         asio::buffer(data_, length_) + offset,