From: Peter Doerfler <gcc@pdoerfler.com>
Date: Sat, 13 May 2006 10:49:40 +0000 (+0000)
Subject: hashtable (identity<>::operator(), [...]): Return by const ref.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6c4e9c60adf9e31a6433095dc3c8e21466296ad8;p=gcc.git

hashtable (identity<>::operator(), [...]): Return by const ref.

2006-05-13  Peter Doerfler  <gcc@pdoerfler.com>

	* include/tr1/hashtable (identity<>::operator(),
	extract1st<>::operator()): Return by const ref.

From-SVN: r113737
---

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 342a71a18a1..cbd081d364f 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2006-05-13  Peter Doerfler  <gcc@pdoerfler.com>
+
+	* include/tr1/hashtable (identity<>::operator(),
+	extract1st<>::operator()): Return by const ref.
+
 2006-05-10  Steve Ellcey  <sje@cup.hp.com>
 
 	* testsuite/lib/libstdc++.exp (check_v3_target_cxa_atexit):
diff --git a/libstdc++-v3/include/tr1/hashtable b/libstdc++-v3/include/tr1/hashtable
index ad34a9c9a59..9455ed6405f 100644
--- a/libstdc++-v3/include/tr1/hashtable
+++ b/libstdc++-v3/include/tr1/hashtable
@@ -404,7 +404,7 @@ namespace Internal
   template<typename T>
     struct identity
     {
-      T
+      const T&
       operator()(const T& t) const
       { return t; }
     };
@@ -412,7 +412,7 @@ namespace Internal
   template<typename Pair>
     struct extract1st
     {
-      typename Pair::first_type
+      const typename Pair::first_type&
       operator()(const Pair& p) const
       { return p.first; }
     };