From ec606bbf144945b7329b76ac3f3dd9ee0c7a8f9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Herv=C3=A9=20Br=C3=B6nnimann?= <hervebronnimann@mac.com>
Date: Thu, 1 Jul 2004 19:23:33 +0000
Subject: [PATCH] Change pair<T,T> to tuple<T,T> in return type of minmax()

[SVN r23307]
---
 include/boost/algorithm/minmax.hpp | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/boost/algorithm/minmax.hpp b/include/boost/algorithm/minmax.hpp
index 1c15222..e4936e3 100644
--- a/include/boost/algorithm/minmax.hpp
+++ b/include/boost/algorithm/minmax.hpp
@@ -30,7 +30,8 @@
  */
 
 #include <utility> // for std::pair and std::make_pair
-#include <boost/ref.hpp> // for boost::cref
+#include <boost/ref.hpp> // for using pairs with boost::cref
+#include <boost/tuple/tuple.hpp> // for using pairs with boost::cref
 
 namespace boost {
 
@@ -56,15 +57,15 @@ namespace boost {
   } // namespace detail
 
   template <typename T>
-  std::pair< boost::reference_wrapper<T const>, reference_wrapper<T const> >
+  tuple< T const&, T const& >
   minmax(T const& a, T const& b) {
-    return (b<a) ? std::make_pair(cref(b),cref(a)) : std::make_pair(cref(a),cref(b));
+    return (b<a) ? make_tuple(cref(b),cref(a)) : make_tuple(cref(a),cref(b));
   }
 
   template <typename T, class BinaryPredicate>
-  std::pair< boost::reference_wrapper<T const>, reference_wrapper<T const> >
+  tuple< T const&, T const& >
   minmax(T const& a, T const& b, BinaryPredicate comp) {
-    return comp(b,a) ? std::make_pair(cref(b),cref(a)) : std::make_pair(cref(a),cref(b));
+    return comp(b,a) ? make_tuple(cref(b),cref(a)) : make_tuple(cref(a),cref(b));
   }
 
   namespace detail {  // common base for the two minmax_element overloads