Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 25_algorithms / lower_bound / 2.cc

diff --git a/libstdc++-v3/testsuite/25_algorithms/lower_bound/2.cc b/libstdc++-v3/testsuite/25_algorithms/lower_bound/2.cc
new file mode 100644 (file)
index 0000000..00e8382
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+++ b/libstdc++-v3/testsuite/25_algorithms/lower_bound/2.cc
@@ -0,0 +1,80 @@
+// Copyright (C) 2001, 2009 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 3, 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 COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 25.3.3 [lib.alg.binary.search] Binary search algorithms.
+
+#include <algorithm>
+#include <testsuite_hooks.h>
+
+bool test __attribute__((unused)) = true;
+
+const int A[] = {1, 2, 3, 3, 3, 5, 8};
+const int C[] = {8, 5, 3, 3, 3, 2, 1};
+const int N = sizeof(A) / sizeof(int);
+
+// A comparison, equalivalent to std::greater<int> without the
+// dependency on <functional>.
+struct gt
+{
+    bool
+    operator()(const int& x, const int& y) const
+    { return x > y; }
+};
+
+// Each test performs general-case, bookend, not-found condition,
+// and predicate functional checks.
+
+// 25.3.3.1 lower_bound, with and without comparison predicate
+void
+test01()
+{
+    using std::lower_bound;
+
+    const int first = A[0];
+    const int last = A[N - 1];
+
+    const int* p = lower_bound(A, A + N, 3);
+    VERIFY(p == A + 2);
+
+    const int* q = lower_bound(A, A + N, first);
+    VERIFY(q == A + 0);
+
+    const int* r = lower_bound(A, A + N, last);
+    VERIFY(r == A + N - 1);
+
+    const int* s = lower_bound(A, A + N, 4);
+    VERIFY(s == A + 5);
+
+    const int* t = lower_bound(C, C + N, 3, gt());
+    VERIFY(t == C + 2);
+
+    const int* u = lower_bound(C, C + N, first, gt());
+    VERIFY(u == C + N - 1);
+
+    const int* v = lower_bound(C, C + N, last, gt());
+    VERIFY(v == C + 0);
+
+    const int* w = lower_bound(C, C + N, 4, gt());
+    VERIFY(w == C + 2);
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}