tuple (tuple(const tuple&)): Define explicitly-defaulted.

2010-06-10  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/tuple (tuple(const tuple&)): Define explicitly-defaulted.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Tweak dg-warning
	line number.

From-SVN: r160539

libstdc++-v3/ChangeLog

 2010-06-10  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	* include/std/tuple (tuple(const tuple&)): Define explicitly-defaulted.
+	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Tweak dg-warning
+	line number.
+
+2010-06-10  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	PR libstdc++/44487
 	* include/bits/stl_pair.h (pair(pair&&)): Remove.
 	(pair(pair<_U1, _U2>&&): Use forward, consistently with Bullet 5

libstdc++-v3/include/std/tuple

@@ -238,8 +238,7 @@ namespace std
         tuple(_UElements&&... __elements)
 	: _Inherited(std::forward<_UElements>(__elements)...) {	}
 
-      tuple(const tuple& __in)
-      : _Inherited(static_cast<const _Inherited&>(__in)) { }
+      tuple(const tuple&) = default;
 
       tuple(tuple&& __in)
       : _Inherited(static_cast<_Inherited&&>(__in)) { }
@@ -321,8 +320,7 @@ namespace std
         tuple(_U1&& __a1, _U2&& __a2)
 	: _Inherited(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { }
 
-      tuple(const tuple& __in)
-      : _Inherited(static_cast<const _Inherited&>(__in)) { }
+      tuple(const tuple&) = default;
 
       tuple(tuple&& __in)
       : _Inherited(static_cast<_Inherited&&>(__in)) { }

libstdc++-v3/testsuite/20_util/weak_ptr/comparison/cmp_neg.cc

@@ -44,7 +44,7 @@ main()
 // { dg-warning "note" "" { target *-*-* } 324 }
 // { dg-warning "note" "" { target *-*-* } 423 }
 // { dg-warning "note" "" { target *-*-* } 862 }
-// { dg-warning "note" "" { target *-*-* } 512 }
+// { dg-warning "note" "" { target *-*-* } 510 }
 // { dg-warning "note" "" { target *-*-* } 1005 }
 // { dg-warning "note" "" { target *-*-* } 340 }
 // { dg-warning "note" "" { target *-*-* } 290 }