From ee5245d4030cdc712b5826add1e7454ef7e23e1d Mon Sep 17 00:00:00 2001
From: paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 28 Aug 2006 13:26:22 +0000
Subject: [PATCH] 2006-08-28 Paolo Carlini <pcarlini@suse.de> Roger
Sayle <roger@eyesopen.com>
* testsuite/25_algorithms/nth_element/2.cc: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116508 138bc75d-0d04-0410-961f-82ee72b054a4
---
libstdc++-v3/ChangeLog | 5 ++
.../testsuite/25_algorithms/nth_element/2.cc | 75 +++++++++++++++++++
2 files changed, 80 insertions(+)
create mode 100644 libstdc++-v3/testsuite/25_algorithms/nth_element/2.cc
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 843e5fccfbf3..3feaa99932e3 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2006-08-28 Paolo Carlini <pcarlini@suse.de>
+ Roger Sayle <roger@eyesopen.com>
+
+ * testsuite/25_algorithms/nth_element/2.cc: New.
+
2006-08-27 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/28830
diff --git a/libstdc++-v3/testsuite/25_algorithms/nth_element/2.cc b/libstdc++-v3/testsuite/25_algorithms/nth_element/2.cc
new file mode 100644
index 000000000000..ed8635033b8c
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/nth_element/2.cc
@@ -0,0 +1,75 @@
+// Copyright (C) 2006 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.
+
+// 25.3.2 [lib.alg.nth.element]
+
+#include <vector>
+#include <algorithm>
+#include <testsuite_hooks.h>
+
+void
+test_set(std::vector<int>& v, int size)
+{
+ v.clear();
+
+ for (int i = 0; i < size; i += 4)
+ {
+ v.push_back(i / 2);
+ v.push_back((size - 2) - (i / 2));
+ }
+ for (int i = 1; i < size; i += 2)
+ v.push_back(i);
+}
+
+void
+do_test01(int size)
+{
+ bool test __attribute__((unused)) = true;
+
+ std::vector<int> v, s;
+
+ for (int j = 0; j < size; ++j)
+ {
+ test_set(v, size);
+ s = v;
+ std::sort(s.begin(), s.end());
+
+ std::nth_element(v.begin(), v.begin() + j, v.end());
+
+ VERIFY( v[j] == s[j] );
+
+ for (int i = 0; i < j; ++i)
+ VERIFY( !(v[j] < v[i]) );
+
+ for (int i = j; i < v.size(); ++i)
+ VERIFY( !(v[i] < v[j]) );
+ }
+}
+
+void
+test01()
+{
+ for (int size = 4; size <= 1 << 10; size <<= 1)
+ do_test01(size);
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--
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