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[v3] Add std::tuple tests
- From: Paolo Carlini <pcarlini at suse dot de>
- To: Gcc Patch List <gcc-patches at gcc dot gnu dot org>
- Cc: libstdc++ <libstdc++ at gcc dot gnu dot org>
- Date: Mon, 24 Dec 2007 17:26:44 +0100
- Subject: [v3] Add std::tuple tests
Hi,
tested x86_64-linux, committed to mainline.
Paolo.
////////////////
2007-12-24 Paolo Carlini <pcarlini@suse.de>
* testsuite/20_util/tuple/cons/big_tuples.cc: New.
* testsuite/20_util/tuple/cons/constructor.cc: Likewise.
* testsuite/20_util/tuple/cons/assignment.cc: Likewise.
* testsuite/20_util/tuple/tuple_element.cc: Likewise.
* testsuite/20_util/tuple/tuple_size.cc: Likewise.
* testsuite/20_util/tuple/comparison_operators/comparisons.cc:
Likewise.
* testsuite/20_util/tuple/element_access/get.cc: Likewise.
* testsuite/20_util/tuple/creation_functions/23978.cc: Likewise.
* testsuite/20_util/tuple/creation_functions/tie.cc: Likewise.
* testsuite/20_util/tuple/creation_functions/make_tuple.cc: Likewise.
* testsuite/20_util/tuple/requirements/explicit_instantiation.cc:
Fix header file and namespace.
* testsuite/tr1/6_containers/tuple/cons/big_tuples.cc: Minor tweaks.
* testsuite/tr1/6_containers/tuple/cons/constructor.cc: Likewise.
* testsuite/tr1/6_containers/tuple/cons/assignment.cc: Likewise.
* testsuite/tr1/6_containers/tuple/tuple_element.cc: Likewise.
* testsuite/tr1/6_containers/tuple/tuple_size.cc: Likewise.
* testsuite/tr1/6_containers/tuple/comparison_operators/
comparisons.cc: Likewise.
* testsuite/tr1/6_containers/tuple/element_access/get.cc: Likewise.
* testsuite/tr1/6_containers/tuple/creation_functions/tie.cc: Likewise.
* testsuite/tr1/6_containers/tuple/creation_functions/make_tuple.cc:
Likewise.
Index: testsuite/tr1/6_containers/tuple/cons/big_tuples.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/cons/big_tuples.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/cons/big_tuples.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -33,6 +33,8 @@
void
test_constructors()
{
+ bool test __attribute__((unused)) = true;
+
int x1=0,x2=0;
const int &z1=x1;
Index: testsuite/tr1/6_containers/tuple/cons/constructor.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/cons/constructor.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/cons/constructor.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -29,6 +29,8 @@
int
main()
{
+ bool test __attribute__((unused)) = true;
+
int x1=0,x2=0;
const int &z1=x1;
Index: testsuite/tr1/6_containers/tuple/cons/assignment.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/cons/assignment.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/cons/assignment.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -28,6 +28,8 @@
int
main()
{
+ bool test __attribute__((unused)) = true;
+
tuple<> ta;
tuple<> tb;
ta = tb;
Index: testsuite/tr1/6_containers/tuple/tuple_element.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/tuple_element.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/tuple_element.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -31,7 +31,7 @@
int
main()
{
- // As foo isn't constructable from anything else, this
+ // As foo isn't constructible from anything else, this
// lets us check if type is returning foo when it should
foo q1;
tuple_element<0,tuple<foo,void,int> >::type q2(q1);
Index: testsuite/tr1/6_containers/tuple/tuple_size.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/tuple_size.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/tuple_size.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -28,6 +28,8 @@
int
main()
{
+ bool test __attribute__((unused)) = true;
+
VERIFY(tuple_size<tuple<> >::value == 0);
VERIFY(tuple_size<tuple<int> >::value == 1);
VERIFY(tuple_size<tuple<void> >::value == 1);
Index: testsuite/tr1/6_containers/tuple/comparison_operators/comparisons.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/comparison_operators/comparisons.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/comparison_operators/comparisons.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -25,6 +25,8 @@
using namespace std::tr1;
+bool test __attribute__((unused)) = true;
+
#define TEST1(x) VERIFY( x == x && !(x != x) && x <= x && !(x < x) )
int
Index: testsuite/tr1/6_containers/tuple/element_access/get.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/element_access/get.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/element_access/get.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -28,6 +28,8 @@
int
main()
{
+ bool test __attribute__((unused)) = true;
+
int j=1;
const int k=2;
tuple<int,int &,const int&> a(0,j,k);
Index: testsuite/tr1/6_containers/tuple/creation_functions/tie.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/creation_functions/tie.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/creation_functions/tie.cc (working copy)
@@ -1,6 +1,6 @@
// 2004-09-23 Chris Jefferson <chris@bubblescope.net>
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@@ -28,6 +28,8 @@
int
main()
{
+ bool test __attribute__((unused)) = true;
+
int x1 = 0;
int x2 = 0;
int y1 = 0;
Index: testsuite/tr1/6_containers/tuple/creation_functions/make_tuple.cc
===================================================================
--- testsuite/tr1/6_containers/tuple/creation_functions/make_tuple.cc (revision 131158)
+++ testsuite/tr1/6_containers/tuple/creation_functions/make_tuple.cc (working copy)
@@ -29,6 +29,8 @@
int
main()
{
+ bool test __attribute__((unused)) = true;
+
int i=0;
make_tuple(1,2,4.0);
make_tuple(ref(i)) = tuple<int>(1);
Index: testsuite/20_util/tuple/cons/big_tuples.cc
===================================================================
--- testsuite/20_util/tuple/cons/big_tuples.cc (revision 0)
+++ testsuite/20_util/tuple/cons/big_tuples.cc (revision 0)
@@ -0,0 +1,105 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+// A simple class without conversions to check some things
+struct foo
+{ };
+
+void
+test_constructors()
+{
+ bool test __attribute__((unused)) = true;
+
+ int x1=0,x2=0;
+ const int &z1=x1;
+
+ // Test empty constructor
+ tuple<> ta;
+ tuple<int,int> tb;
+ // Test construction from values
+ tuple<int,int> tc(x1,x2);
+ tuple<int,int&> td(x1,x2);
+ tuple<const int&> te(z1);
+ x1=1;
+ x2=1;
+ VERIFY(get<0>(td) == 0 && get<1>(td) == 1 && get<0>(te) == 1);
+
+ // Test identical tuple copy constructor
+ tuple<int,int> tf(tc);
+ tuple<int,int> tg(td);
+ tuple<const int&> th(te);
+ // Test different tuple copy constructor
+ tuple<int,double> ti(tc);
+ tuple<int,double> tj(td);
+ // Test constructing from a pair
+ pair<int,int> pair1(1,1);
+ const pair<int,int> pair2(pair1);
+ tuple<int,int> tl(pair1);
+ tuple<int,const int&> tm(pair1);
+ tuple<int,int> tn(pair2);
+ tuple<int,const int&> to(pair2);
+}
+
+int
+main(void)
+{
+ //test construction
+ typedef tuple<int,int,int,int,int,int,int,int,int,int> type1;
+ type1 a(0, 0, 0, 0, 0, 0, 0, 0, 0, 1);
+ type1 b(0, 0, 0, 0, 0, 0, 0, 0, 0, 2);
+ type1 c(a);
+ typedef tuple<int,int,int,int,int,int,int,int,int,char> type2;
+ type2 d(0, 0, 0, 0, 0, 0, 0, 0, 0, 3);
+ type1 e(d);
+ typedef tuple<foo,int,int,int,int,int,int,int,int,foo> type3;
+ // get
+ VERIFY(get<9>(a)==1 && get<9>(b)==2);
+ // comparisons
+ VERIFY(a==a && !(a!=a) && a<=a && a>=a && !(a<a) && !(a>a));
+ VERIFY(!(a==b) && a!=b && a<=b && a<b && !(a>=b) && !(a>b));
+ //tie
+ {
+ int i = 0;
+ tie(ignore, ignore, ignore, ignore, ignore, ignore, ignore, ignore,
+ ignore, i) = a;
+ VERIFY(i == 1);
+ }
+ //test_assignment
+ a=d;
+ a=b;
+ //make_tuple
+ make_tuple(0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+
+ //tuple_size
+ VERIFY(tuple_size<type3>::value == 10);
+ //tuple_element
+ {
+ foo q1;
+ tuple_element<0,type3>::type q2(q1);
+ tuple_element<9,type3>::type q3(q1);
+ }
+}
Index: testsuite/20_util/tuple/cons/constructor.cc
===================================================================
--- testsuite/20_util/tuple/cons/constructor.cc (revision 0)
+++ testsuite/20_util/tuple/cons/constructor.cc (revision 0)
@@ -0,0 +1,65 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+int
+main()
+{
+ bool test __attribute__((unused)) = true;
+
+ int x1=0,x2=0;
+ const int &z1=x1;
+
+ // Test empty constructor
+ tuple<> ta;
+ tuple<int,int> tb;
+ // Test construction from values
+ tuple<int,int> tc(x1,x2);
+ tuple<int,int&> td(x1,x2);
+ tuple<const int&> te(z1);
+ x1=1;
+ x2=1;
+ VERIFY(get<0>(td) == 0 && get<1>(td) == 1 && get<0>(te) == 1);
+
+ // Test identical tuple copy constructor
+ tuple<int,int> tf(tc);
+ tuple<int,int> tg(td);
+ tuple<const int&> th(te);
+ // Test different tuple copy constructor
+ tuple<int,double> ti(tc);
+ tuple<int,double> tj(td);
+ //tuple<int&, int&> tk(tc);
+ tuple<const int&, const int&> tl(tc);
+ tuple<const int&, const int&> tm(tl);
+ // Test constructing from a pair
+ pair<int,int> pair1(1,1);
+ const pair<int,int> pair2(pair1);
+ tuple<int,int> tn(pair1);
+ tuple<int,const int&> to(pair1);
+ tuple<int,int> tp(pair2);
+ tuple<int,const int&> tq(pair2);
+ return 0;
+}
Index: testsuite/20_util/tuple/cons/assignment.cc
===================================================================
--- testsuite/20_util/tuple/cons/assignment.cc (revision 0)
+++ testsuite/20_util/tuple/cons/assignment.cc (revision 0)
@@ -0,0 +1,53 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+int
+main()
+{
+ bool test __attribute__((unused)) = true;
+
+ tuple<> ta;
+ tuple<> tb;
+ ta = tb;
+
+ tuple<int> tc(1);
+ tuple<int> td(0);
+ td = tc;
+ VERIFY(get<0>(td) == 1);
+
+ int i=0;
+ tuple<int&> te(i);
+ te = tc;
+ VERIFY(i == 1);
+
+ tuple<const int&> tf(tc);
+
+ get<0>(tc) = 2;
+ VERIFY(get<0>(tf) == 2);
+ tuple<double> tg;
+ tg = tc;
+}
Index: testsuite/20_util/tuple/requirements/explicit_instantiation.cc
===================================================================
--- testsuite/20_util/tuple/requirements/explicit_instantiation.cc (revision 131158)
+++ testsuite/20_util/tuple/requirements/explicit_instantiation.cc (working copy)
@@ -28,6 +28,6 @@
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
-#include <tr1/tuple>
+#include <tuple>
-template class std::tr1::tuple<short, int, double>;
+template class std::tuple<short, int, double>;
Index: testsuite/20_util/tuple/tuple_element.cc
===================================================================
--- testsuite/20_util/tuple/tuple_element.cc (revision 0)
+++ testsuite/20_util/tuple/tuple_element.cc (revision 0)
@@ -0,0 +1,38 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+
+using namespace std;
+
+struct foo
+{ };
+
+int
+main()
+{
+ // As foo isn't constructible from anything else, this
+ // lets us check if type is returning foo when it should
+ foo q1;
+ tuple_element<0,tuple<foo,void,int> >::type q2(q1);
+ tuple_element<2,tuple<void,int,foo> >::type q3(q1);
+}
Index: testsuite/20_util/tuple/tuple_size.cc
===================================================================
--- testsuite/20_util/tuple/tuple_size.cc (revision 0)
+++ testsuite/20_util/tuple/tuple_size.cc (revision 0)
@@ -0,0 +1,39 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+int
+main()
+{
+ bool test __attribute__((unused)) = true;
+
+ VERIFY(tuple_size<tuple<> >::value == 0);
+ VERIFY(tuple_size<tuple<int> >::value == 1);
+ VERIFY(tuple_size<tuple<void> >::value == 1);
+ typedef tuple<int,const int&,void> test_tuple1;
+ VERIFY(tuple_size<test_tuple1>::value == 3);
+ VERIFY(tuple_size<tuple<tuple<void> > >::value == 1);
+}
Index: testsuite/20_util/tuple/comparison_operators/comparisons.cc
===================================================================
--- testsuite/20_util/tuple/comparison_operators/comparisons.cc (revision 0)
+++ testsuite/20_util/tuple/comparison_operators/comparisons.cc (revision 0)
@@ -0,0 +1,50 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+bool test __attribute__((unused)) = true;
+
+#define TEST1(x) VERIFY( x == x && !(x != x) && x <= x && !(x < x) )
+
+int
+main()
+{
+ int i=0;
+ int j=0;
+ int k=2;
+ tuple<int, int, int> a(0, 0, 0);
+ tuple<int, int, int> b(0, 0, 1);
+ tuple<int& , int& , int&> c(i,j,k);
+ tuple<const int&, const int&, const int&> d(c);
+ TEST1(a);
+ TEST1(b);
+ TEST1(c);
+ TEST1(d);
+ VERIFY(!(a > a) && !(b > b));
+ VERIFY(a >= a && b >= b);
+ VERIFY(a < b && !(b < a) && a <= b && !(b <= a));
+ VERIFY(b > a && !(a > b) && b >= a && !(a >= b));
+}
Index: testsuite/20_util/tuple/element_access/get.cc
===================================================================
--- testsuite/20_util/tuple/element_access/get.cc (revision 0)
+++ testsuite/20_util/tuple/element_access/get.cc (revision 0)
@@ -0,0 +1,45 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+int
+main()
+{
+ bool test __attribute__((unused)) = true;
+
+ int j=1;
+ const int k=2;
+ tuple<int,int &,const int&> a(0,j,k);
+ const tuple<int,int &,const int&> b(1,j,k);
+ VERIFY(get<0>(a)==0 && get<1>(a)==1 && get<2>(a)==2);
+ get<0>(a)=3;
+ get<1>(a)=4;
+ VERIFY(get<0>(a)==3 && get<1>(a)==4);
+ VERIFY(j==4);
+ get<1>(b)=5;
+ VERIFY(get<0>(b)==1 && get<1>(b)==5 && get<2>(b)==2);
+ VERIFY(j==5);
+}
Index: testsuite/20_util/tuple/creation_functions/23978.cc
===================================================================
--- testsuite/20_util/tuple/creation_functions/23978.cc (revision 0)
+++ testsuite/20_util/tuple/creation_functions/23978.cc (revision 0)
@@ -0,0 +1,46 @@
+// { dg-options "-std=gnu++0x" }
+//
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <utility>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+// libstdc++/23978
+void test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ pair<int, int> p(1, 2);
+ int x = 0;
+ int y = 0;
+ tie(x, y) = p;
+ VERIFY( x == 1 && y == 2 );
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}
Index: testsuite/20_util/tuple/creation_functions/tie.cc
===================================================================
--- testsuite/20_util/tuple/creation_functions/tie.cc (revision 0)
+++ testsuite/20_util/tuple/creation_functions/tie.cc (revision 0)
@@ -0,0 +1,43 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+int
+main()
+{
+ bool test __attribute__((unused)) = true;
+
+ int x1 = 0;
+ int x2 = 0;
+ int y1 = 0;
+ int y2 = 0;
+ tuple<int,int> ta(1,1);
+ tuple<const int&,const int&> tc(x1,x2);
+ tie(y1,y2)=ta;
+ VERIFY(y1 == 1 && y2 == 1);
+ tie(y1,y2)=tc;
+ VERIFY(y1 == 0 && y2 == 0);
+}
Index: testsuite/20_util/tuple/creation_functions/make_tuple.cc
===================================================================
--- testsuite/20_util/tuple/creation_functions/make_tuple.cc (revision 0)
+++ testsuite/20_util/tuple/creation_functions/make_tuple.cc (revision 0)
@@ -0,0 +1,38 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Tuple
+
+#include <tuple>
+#include <functional>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+int
+main()
+{
+ bool test __attribute__((unused)) = true;
+
+ int i=0;
+ make_tuple(1,2,4.0);
+ make_tuple(ref(i)) = tuple<int>(1);
+ VERIFY(i == 1);
+}