From cf5f69c2161bca7a927db6f2ae4e2258c6874eac Mon Sep 17 00:00:00 2001
From: Daniel James <daniel@calamity.org.uk>
Date: Wed, 17 Jun 2009 21:23:42 +0000
Subject: [PATCH] Try to avoid using special macro handling code.

[SVN r54025]
---
 .../hash/detail/float_functions.hpp           | 38 +------------------
 1 file changed, 2 insertions(+), 36 deletions(-)

diff --git a/include/boost/functional/hash/detail/float_functions.hpp b/include/boost/functional/hash/detail/float_functions.hpp
index f766ec9..199123d 100644
--- a/include/boost/functional/hash/detail/float_functions.hpp
+++ b/include/boost/functional/hash/detail/float_functions.hpp
@@ -100,7 +100,8 @@ namespace BOOST_HASH_DETECT_FLOAT_FUNCTIONS {
 #define BOOST_HASH_CALL_FLOAT_FUNC(cpp_func, c99_func, type1, type2)    \
 namespace BOOST_HASH_DETECT_FLOAT_FUNCTIONS {                           \
     template <class Float>                                              \
-    boost::hash_detail::not_found c99_func(Float, type2);               \
+    boost::hash_detail::not_found c99_func                              \
+        BOOST_PREVENT_MACRO_SUBSTITUTION (Float, type2);                \
 }                                                                       \
                                                                         \
 namespace boost {                                                       \
@@ -163,48 +164,13 @@ namespace boost {                                                       \
     }                                                                   \
 }
 
-#define BOOST_HASH_CALL_FLOAT_MACRO(cpp_func, c99_func, type1, type2)   \
-namespace boost {                                                       \
-    namespace hash_detail {                                             \
-                                                                        \
-        template <>                                                     \
-        struct call_##cpp_func<type1> {                                 \
-            typedef type1 float_type;                                   \
-            inline type1 operator()(type1 x, type2 y) const {           \
-                return c99_func(x, y);                                  \
-            }                                                           \
-        };                                                              \
-    }                                                                   \
-}
-
-#if defined(ldexpf)
-BOOST_HASH_CALL_FLOAT_MACRO(ldexp, ldexpf, float, int)
-#else
 BOOST_HASH_CALL_FLOAT_FUNC(ldexp, ldexpf, float, int)
-#endif
-
-#if defined(ldexpl)
-BOOST_HASH_CALL_FLOAT_MACRO(ldexp, ldexpl, long double, int)
-#else
 BOOST_HASH_CALL_FLOAT_FUNC(ldexp, ldexpl, long double, int)
-#endif
-
-#if defined(frexpf)
-BOOST_HASH_CALL_FLOAT_MACRO(frexp, frexpf, float, int*)
-#else
 BOOST_HASH_CALL_FLOAT_FUNC(frexp, frexpf, float, int*)
-#endif
-
-#if defined(frexpl)
-BOOST_HASH_CALL_FLOAT_MACRO(frexp, frexpl, long double, int*)
-#else
 BOOST_HASH_CALL_FLOAT_FUNC(frexp, frexpl, long double, int*)
-#endif
 
-#undef BOOST_HASH_CALL_FLOAT_MACRO
 #undef BOOST_HASH_CALL_FLOAT_FUNC
 
-
 namespace boost
 {
     namespace hash_detail