diff --git a/src/ipc.cpp b/src/ipc.cpp
index bb58e6a..1828dd7 100644
--- a/src/ipc.cpp
+++ b/src/ipc.cpp
@@ -43,7 +43,7 @@ struct msg_t<0, AlignSize> {
 
 template <std::size_t DataSize, std::size_t AlignSize>
 struct msg_t {
-    msg_t<0, AlignSize> head_ {};
+    msg_t<0, AlignSize> head_ { 0, 0, 0, false };
     std::aligned_storage_t<DataSize, AlignSize> data_ {};
 
     msg_t() = default;
diff --git a/src/platform/detail.h b/src/platform/detail.h
index 5d89962..4f6e723 100644
--- a/src/platform/detail.h
+++ b/src/platform/detail.h
@@ -17,10 +17,21 @@
 #ifdef IPC_UNUSED_
 #   error "IPC_UNUSED_ has been defined."
 #endif
+#ifdef IPC_FALLTHROUGH_
+#   error "IPC_FALLTHROUGH_ has been defined."
+#endif
+#ifdef IPC_STBIND_
+#   error "IPC_STBIND_ has been defined."
+#endif
 
 #if __cplusplus >= 201703L
-#   define IPC_UNUSED_ [[maybe_unused]]
+
+#define IPC_UNUSED_      [[maybe_unused]]
+#define IPC_FALLTHROUGH_ [[fallthrough]]
+#define IPC_STBIND_(A, B, ...) auto [A, B] = __VA_ARGS__
+
 #else /*__cplusplus < 201703L*/
+
 #if defined(_MSC_VER)
 #   define IPC_UNUSED_ __pragma(warning(suppress: 4100 4101 4189))
 #elif defined(__GNUC__)
@@ -28,19 +39,14 @@
 #else
 #   define IPC_UNUSED_
 #endif
-#endif/*__cplusplus < 201703L*/
 
-#ifdef IPC_STBIND_
-#   error "IPC_STBIND_ has been defined."
-#endif
+#define IPC_FALLTHROUGH_
+
+#define IPC_STBIND_(A, B, ...)       \
+    auto tp___ = __VA_ARGS__         \
+    auto A     = std::get<0>(tp___); \
+    auto B     = std::get<1>(tp___)
 
-#if __cplusplus >= 201703L
-#   define IPC_STBIND_(A, B, ...) auto [A, B] = __VA_ARGS__
-#else /*__cplusplus < 201703L*/
-#   define IPC_STBIND_(A, B, ...) \
-    auto tp___ = __VA_ARGS__      \
-    auto A     = std::get<0>(tp);    \
-    auto B     = std::get<1>(tp)
 #endif/*__cplusplus < 201703L*/
 
 #if __cplusplus >= 201703L
diff --git a/src/prod_cons.h b/src/prod_cons.h
index 2f44e98..016f465 100644
--- a/src/prod_cons.h
+++ b/src/prod_cons.h
@@ -6,7 +6,7 @@
 #include <type_traits>
 
 #include "def.h"
-
+#include "platform/detail.h"
 #include "circ/elem_def.h"
 
 namespace ipc {
@@ -363,7 +363,7 @@ struct prod_cons_impl<wr<relat::multi , relat::multi, trans::broadcast>> {
                 return true;
             case 1:
                 el->f_ct_.store(cur + N - 1, std::memory_order_release);
-                [[fallthrough]];
+                IPC_FALLTHROUGH_;
             default:
                 if (el->rc_.compare_exchange_weak(
                             cur_rc, cur_rc + rc_incr - 1, std::memory_order_release)) {