diff --git a/include/boost/core/detail/sp_thread_pause.hpp b/include/boost/core/detail/sp_thread_pause.hpp
index e6d0327..01be1a0 100644
--- a/include/boost/core/detail/sp_thread_pause.hpp
+++ b/include/boost/core/detail/sp_thread_pause.hpp
@@ -17,6 +17,8 @@
 // Distributed under the Boost Software License, Version 1.0
 // https://www.boost.org/LICENSE_1_0.txt
 
+#include <boost/config.hpp>
+
 #if defined(__has_builtin)
 # if __has_builtin(__builtin_ia32_pause) && !defined(_INTEL_COMPILER)
 #  define BOOST_CORE_HAS_BUILTIN_IA32_PAUSE
@@ -56,7 +58,7 @@ namespace boost
 namespace core
 {
 
-inline void sp_thread_pause()
+BOOST_FORCEINLINE void sp_thread_pause() BOOST_NOEXCEPT
 {
     BOOST_CORE_SP_PAUSE();
 }
diff --git a/include/boost/core/detail/sp_thread_sleep.hpp b/include/boost/core/detail/sp_thread_sleep.hpp
index 0d26c83..8442094 100644
--- a/include/boost/core/detail/sp_thread_sleep.hpp
+++ b/include/boost/core/detail/sp_thread_sleep.hpp
@@ -36,7 +36,7 @@ namespace core
 namespace detail
 {
 
-inline void sp_thread_sleep()
+inline void sp_thread_sleep() BOOST_NOEXCEPT
 {
     Sleep( 1 );
 }
@@ -65,7 +65,7 @@ namespace boost
 namespace core
 {
 
-inline void sp_thread_sleep()
+inline void sp_thread_sleep() BOOST_NOEXCEPT
 {
 #if defined(BOOST_HAS_PTHREADS)
 
@@ -109,7 +109,7 @@ namespace boost
 namespace core
 {
 
-inline void sp_thread_sleep()
+inline void sp_thread_sleep() BOOST_NOEXCEPT
 {
     sp_thread_yield();
 }
diff --git a/include/boost/core/detail/sp_thread_yield.hpp b/include/boost/core/detail/sp_thread_yield.hpp
index c19e7e6..efe6ea0 100644
--- a/include/boost/core/detail/sp_thread_yield.hpp
+++ b/include/boost/core/detail/sp_thread_yield.hpp
@@ -36,7 +36,7 @@ namespace core
 namespace detail
 {
 
-inline void sp_thread_yield()
+inline void sp_thread_yield() BOOST_NOEXCEPT
 {
     Sleep( 0 );
 }
@@ -66,7 +66,7 @@ namespace boost
 namespace core
 {
 
-inline void sp_thread_yield()
+inline void sp_thread_yield() BOOST_NOEXCEPT
 {
     sched_yield();
 }
@@ -87,7 +87,7 @@ namespace boost
 namespace core
 {
 
-inline void sp_thread_yield()
+inline void sp_thread_yield() BOOST_NOEXCEPT
 {
     sp_thread_pause();
 }