diff --git a/include/boost/type_traits/has_post_increment.hpp b/include/boost/type_traits/has_post_increment.hpp
index 30d49f4..085b2d5 100644
--- a/include/boost/type_traits/has_post_increment.hpp
+++ b/include/boost/type_traits/has_post_increment.hpp
@@ -13,6 +13,8 @@
 #define BOOST_TT_TRAIT_OP ++
 #define BOOST_TT_FORBIDDEN_IF\
    ::boost::type_traits::ice_or<\
+      /* bool */\
+      ::boost::is_same< bool, Lhs_nocv >::value,\
       /* void* */\
       ::boost::type_traits::ice_and<\
          ::boost::is_pointer< Lhs_noref >::value,\
diff --git a/include/boost/type_traits/has_pre_increment.hpp b/include/boost/type_traits/has_pre_increment.hpp
index d863630..fcb946d 100644
--- a/include/boost/type_traits/has_pre_increment.hpp
+++ b/include/boost/type_traits/has_pre_increment.hpp
@@ -13,6 +13,8 @@
 #define BOOST_TT_TRAIT_OP ++
 #define BOOST_TT_FORBIDDEN_IF\
    ::boost::type_traits::ice_or<\
+      /* bool */\
+      ::boost::is_same< bool, Rhs_nocv >::value,\
       /* void* */\
       ::boost::type_traits::ice_and<\
          ::boost::is_pointer< Rhs_noref >::value,\
diff --git a/test/has_post_increment_test.cpp b/test/has_post_increment_test.cpp
index 9707e75..f96e884 100644
--- a/test/has_post_increment_test.cpp
+++ b/test/has_post_increment_test.cpp
@@ -29,16 +29,16 @@ void specific() {
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< void, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< void, int & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< void, int const & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, void >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const & >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const & >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const & >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, void >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, bool >::value), 0);
@@ -49,16 +49,16 @@ void specific() {
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, int & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, int const & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool & >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, void >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const & >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const & >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const & >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const &, void >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const &, bool >::value), 0);
diff --git a/test/has_pre_increment_test.cpp b/test/has_pre_increment_test.cpp
index 08a13b8..deeb9fe 100644
--- a/test/has_pre_increment_test.cpp
+++ b/test/has_pre_increment_test.cpp
@@ -29,16 +29,16 @@ void specific() {
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< void, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< void, int & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< void, int const & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, void >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool & >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const & >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool & >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, bool const & >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const & >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool, int const & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, void >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, bool >::value), 0);
@@ -49,16 +49,16 @@ void specific() {
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, int & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const, int const & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool & >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, void >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool & >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const & >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int >::value), 1);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool & >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, bool const & >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int >::value), 0);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int & >::value), 0);
-   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const & >::value), 1);
+   BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool &, int const & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const & >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const &, void >::value), 0);
    BOOST_CHECK_INTEGRAL_CONSTANT((::boost::BOOST_TT_TRAIT_NAME< bool const &, bool >::value), 0);