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Diffstat (limited to 'libstdc++-v3/testsuite/25_algorithms/minmax/3.cc')
-rw-r--r-- | libstdc++-v3/testsuite/25_algorithms/minmax/3.cc | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc b/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc new file mode 100644 index 000000000..0e99d51d2 --- /dev/null +++ b/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc @@ -0,0 +1,55 @@ +// { dg-options "-std=gnu++0x" } + +// 2008-09-16 Chris Fairles <chris.fairles@gmail.com> + +// Copyright (C) 2008, 2009, 2010 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/>. + +#include <algorithm> +#include <functional> +#include <testsuite_hooks.h> + +struct compare_counter + : std::binary_function<int, int, bool> +{ + static int count; + + bool operator()(int a, int b) const + { + ++count; + return a < b; + } +}; + +int compare_counter::count = 0; + +void test01() +{ + bool test __attribute__((unused)) = true; + + std::minmax({1, 2, 3, 4, 5, 6, 7, 8}, compare_counter()); + + // If N is the number of arguments in the minmax function call, + // 25.3.7 specifies that at most 3N/2 comparisons are allowed. + VERIFY(compare_counter::count <= (3 * 8 / 2)); +} + +int main() +{ + test01(); + return 0; +} |