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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/testsuite/25_algorithms/binary_search/2.cc | |
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Diffstat (limited to 'libstdc++-v3/testsuite/25_algorithms/binary_search/2.cc')
-rw-r--r-- | libstdc++-v3/testsuite/25_algorithms/binary_search/2.cc | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/25_algorithms/binary_search/2.cc b/libstdc++-v3/testsuite/25_algorithms/binary_search/2.cc new file mode 100644 index 000000000..19d227215 --- /dev/null +++ b/libstdc++-v3/testsuite/25_algorithms/binary_search/2.cc @@ -0,0 +1,63 @@ +// Copyright (C) 2001, 2007, 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; } +}; + +// 25.3.3.4 binary_search, with and without comparison predicate +void +test04() +{ + using std::binary_search; + + const int first = A[0]; + const int last = A[N - 1]; + + VERIFY(binary_search(A, A + N, 5)); + VERIFY(binary_search(A, A + N, first)); + VERIFY(binary_search(A, A + N, last)); + VERIFY(!binary_search(A, A + N, 4)); + + VERIFY(binary_search(C, C + N, 5, gt())); + VERIFY(binary_search(C, C + N, first, gt())); + VERIFY(binary_search(C, C + N, last, gt())); + VERIFY(!binary_search(C, C + N, 4, gt())); +} + +int +main() +{ + test04(); + return 0; +} |