diff --git a/example/is_integral.cpp b/example/is_integral.cpp
index cb8652b..d63b64b 100644
--- a/example/is_integral.cpp
+++ b/example/is_integral.cpp
@@ -10,21 +10,22 @@
  * See http://www.boost.org for most recent version.
  */
 
-// This example demonstrates the usage of preprocessor lists for generating C++ code.
+/* This example demonstrates the usage of preprocessor lists for generating C++ code. */
 
 #include <boost/preprocessor/list/for_each.hpp>
 #include <boost/preprocessor/tuple/to_list.hpp>
 #include <boost/preprocessor/empty.hpp>
 
-// List of integral types. (Strictly speaking, wchar_t should be on the list.)
+/* List of integral types. (Strictly speaking, wchar_t should be on the list.) */
 #define INTEGRAL_TYPES\
   BOOST_PP_TUPLE_TO_LIST(9,(char, signed char, unsigned char, short, unsigned short, int, unsigned, long, unsigned long))
 
-// Template for testing whether a type is an integral type.
+/* Template for testing whether a type is an integral type. */
 template<class T> struct is_integral {enum {value = false};};
 
-// Macro for defining a specialization of is_integral<> template.
-// NOTE: CV is invoked so that it is possible to pass empty cv-qualifiers.
+/* Macro for defining a specialization of is_integral<> template.
+ * NOTE: CV is invoked so that it is possible to pass empty cv-qualifiers.
+ */
 #define IS_INTEGRAL_SPECIALIZATION(_,CV,T)\
   template<> struct is_integral<CV() T> {enum {value = true};};