From ab2358913cc21643f0e0f0c2d32f832d17c32f49 Mon Sep 17 00:00:00 2001
From: Jens Maurer <jens.maurer@gmx.net>
Date: Sun, 18 Feb 2001 16:16:02 +0000
Subject: [PATCH] use ice_not<> instead of logical not "!" to work around
 problems with early EDG (for example, IRIX CC and Compaq C++)

[SVN r9255]
---
 include/boost/type_traits/object_traits.hpp | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/include/boost/type_traits/object_traits.hpp b/include/boost/type_traits/object_traits.hpp
index 662dd6f..ca8c624 100644
--- a/include/boost/type_traits/object_traits.hpp
+++ b/include/boost/type_traits/object_traits.hpp
@@ -40,8 +40,8 @@ struct is_object
 {
    BOOST_DECL_MC(bool, value,
       (::boost::type_traits::ice_and<
-         !::boost::is_reference<T>::value,
-         !::boost::is_void<T>::value
+         ::boost::type_traits::ice_not< ::boost::is_reference<T>::value>::value,
+         ::boost::type_traits::ice_not< ::boost::is_void<T>::value>::value
       >::value));
 };
 
@@ -72,11 +72,11 @@ struct is_class
 {
    BOOST_DECL_MC(bool, value,
       (::boost::type_traits::ice_and<
-         !::boost::is_union<T>::value,
-         !::boost::is_scalar<T>::value,
-         !::boost::is_array<T>::value,
-         !::boost::is_reference<T>::value,
-         !::boost::is_void<T>::value
+         ::boost::type_traits::ice_not< ::boost::is_union<T>::value >::value,
+         ::boost::type_traits::ice_not< ::boost::is_scalar<T>::value >::value,
+         ::boost::type_traits::ice_not< ::boost::is_array<T>::value >::value,
+         ::boost::type_traits::ice_not< ::boost::is_reference<T>::value>::value,
+         ::boost::type_traits::ice_not< ::boost::is_void<T>::value >::value
       >::value));
 };
 
@@ -150,7 +150,7 @@ struct has_trivial_copy
             ::boost::is_POD<T>::value,
             BOOST_HAS_TRIVIAL_COPY(T)
          >::value,
-      !::boost::is_volatile<T>::value
+      ::boost::type_traits::ice_not< ::boost::is_volatile<T>::value >::value
       >::value));
 };
 
@@ -168,8 +168,8 @@ struct has_trivial_assign
             ::boost::is_POD<T>::value,
             BOOST_HAS_TRIVIAL_ASSIGN(T)
          >::value,
-      !::boost::is_const<T>::value,
-      !::boost::is_volatile<T>::value
+      ::boost::type_traits::ice_not< ::boost::is_const<T>::value >::value,
+      ::boost::type_traits::ice_not< ::boost::is_volatile<T>::value >::value
       >::value));
 };