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Diffstat (limited to 'libstdc++-v3/testsuite/25_algorithms/partition.cc')
-rw-r--r-- | libstdc++-v3/testsuite/25_algorithms/partition.cc | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/25_algorithms/partition.cc b/libstdc++-v3/testsuite/25_algorithms/partition.cc new file mode 100644 index 00000000000..6623cd3f0ed --- /dev/null +++ b/libstdc++-v3/testsuite/25_algorithms/partition.cc @@ -0,0 +1,73 @@ +// Copyright (C) 2001 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 Pred 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// 25.2.12 [lib.alg.partitions] Partitions. + +#include <algorithm> +#include <functional> +#include <debug_assert.h> + +bool test = true; + +const int A[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17}; +const int B[] = {2, 4, 6, 8, 10, 12, 14, 16, 1, 3, 5, 7, 9, 11, 13, 15, 17}; +const int N = sizeof(A) / sizeof(int); + +struct Pred +{ + bool + operator()(const int& x) const + { return (x % 2) == 0; } +}; + +// 25.2.12 partition() +void +test01() +{ + using std::partition; + + int s1[N]; + std::copy(A, A + N, s1); + + Pred pred; + int* m = partition(s1, s1 + N, pred); + for (const int* i = s1; i < m; ++i) VERIFY(pred(*i)); + for (const int* i = m; i < s1 + N; ++i) VERIFY(!pred(*i)); +} + +// 25.2.12 stable_partition() +void +test02() +{ + using std::stable_partition; + + int s1[N]; + std::copy(A, A + N, s1); + + stable_partition(s1, s1 + N, Pred()); + VERIFY(std::equal(s1, s1 + N, B)); +} + +int +main(int argc, char* argv[]) +{ + test01(); + test02(); + + return !test; +} |