+2008-06-28 Paolo Carlini <paolo.carlini@oracle.com>
+
+ * include/bits/stl_algo.h (partition_point): Add in C++0x mode.
+ * include/bits/algorithmfwd.h: Add.
+ * testsuite/25_algorithms/headers/algorithm/synopsis.cc: Update.
+ * testsuite/25_algorithms/partition_point/1.cc: New.
+ * testsuite/25_algorithms/partition_point/check_type.cc: Likewise.
+ * testsuite/25_algorithms/partition_point/requirements/
+ explicit_instantiation/2.cc: Likewise.
+ * testsuite/25_algorithms/partition_point/requirements/
+ explicit_instantiation/pod.cc: Likewise.
+
2008-06-28 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/36660
partial_sort_copy
partition
partition_copy (C++0x)
+ partition_point (C++0x)
pop_heap
prev_permutation
push_heap
typename _OIter2, typename _Predicate>
pair<_OIter1, _OIter2>
partition_copy(_IIter, _IIter, _OIter1, _OIter2, _Predicate);
+
+ template<typename _FIter, typename _Predicate>
+ _FIter
+ partition_point(_FIter, _FIter, _Predicate);
#endif
template<typename _RAIter>
__first = std::find_if_not(__first, __last, __pred);
return std::none_of(__first, __last, __pred);
}
+
+ /**
+ * @brief Find the partition point of a partitioned range.
+ * @param first An iterator.
+ * @param last Another iterator.
+ * @param pred A predicate.
+ * @return An iterator @p mid such that @p all_of(first, mid, pred)
+ * and @p none_of(mid, last, pred) are both true.
+ */
+ template<typename _ForwardIterator, typename _Predicate>
+ _ForwardIterator
+ partition_point(_ForwardIterator __first, _ForwardIterator __last,
+ _Predicate __pred)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
+ __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate,
+ typename iterator_traits<_ForwardIterator>::value_type>)
+
+ // A specific debug-mode test will be necessary...
+ __glibcxx_requires_valid_range(__first, __last);
+
+ typedef typename iterator_traits<_ForwardIterator>::difference_type
+ _DistanceType;
+
+ _DistanceType __len = std::distance(__first, __last);
+ _DistanceType __half;
+ _ForwardIterator __middle;
+
+ while (__len > 0)
+ {
+ __half = __len >> 1;
+ __middle = __first;
+ std::advance(__middle, __half);
+ if (__pred(*__middle))
+ {
+ __first = __middle;
+ ++__first;
+ __len = __len - __half - 1;
+ }
+ else
+ __len = __half;
+ }
+ return __first;
+ }
#endif
template<typename _IIter, typename _Predicate>
bool
is_partitioned(_IIter, _IIter, _Predicate);
+
+ template<typename _FIter, typename _Predicate>
+ _FIter
+ partition_point(_FIter, _FIter, _Predicate);
#endif
template<typename _FIter1, typename _FIter2>
--- /dev/null
+// { dg-options "-std=gnu++0x" }
+
+// 2008-06-28 Paolo Carlini <paolo.carlini@oracle.com>
+
+// Copyright (C) 2008 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.
+
+#include <algorithm>
+#include <testsuite_hooks.h>
+#include <testsuite_iterators.h>
+
+using __gnu_test::test_container;
+using __gnu_test::forward_iterator_wrapper;
+
+typedef test_container<int, forward_iterator_wrapper> Container;
+int array[] = {0, 0, 1, 1, 1, 1};
+
+bool
+predicate(const int& i)
+{ return i == 0; }
+
+void
+test1()
+{
+ bool test __attribute__((unused)) = true;
+
+ Container con(array, array);
+
+ forward_iterator_wrapper<int> mid =
+ std::partition_point(con.begin(), con.end(), predicate);
+
+ VERIFY( std::all_of(con.begin(), mid, predicate) );
+ VERIFY( std::none_of(mid, con.end(), predicate) );
+}
+
+void
+test2()
+{
+ bool test __attribute__((unused)) = true;
+
+ Container con(array, array + 1);
+
+ forward_iterator_wrapper<int> mid =
+ std::partition_point(con.begin(), con.end(), predicate);
+
+ VERIFY( std::all_of(con.begin(), mid, predicate) );
+ VERIFY( std::none_of(mid, con.end(), predicate) );
+}
+
+void
+test3()
+{
+ bool test __attribute__((unused)) = true;
+
+ Container con(array, array + 6);
+
+ forward_iterator_wrapper<int> mid =
+ std::partition_point(con.begin(), con.end(), predicate);
+
+ VERIFY( std::all_of(con.begin(), mid, predicate) );
+ VERIFY( std::none_of(mid, con.end(), predicate) );
+}
+
+int
+main()
+{
+ test1();
+ test2();
+ test3();
+ return 0;
+}
--- /dev/null
+// 2008-06-28 Paolo Carlini <paolo.carlini@oracle.com>
+
+// Copyright (C) 2008 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.
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <algorithm>
+#include <testsuite_iterators.h>
+
+struct X { };
+
+using __gnu_test::forward_iterator_wrapper;
+
+bool
+pred_function(const X&)
+{ return true; }
+
+struct pred_obj
+{
+ bool
+ operator()(const X&)
+ { return true; }
+};
+
+forward_iterator_wrapper<X>
+test1(forward_iterator_wrapper<X>& begin,
+ forward_iterator_wrapper<X>& end)
+{ return std::partition_point(begin, end, pred_function); }
+
+forward_iterator_wrapper<X>
+test2(forward_iterator_wrapper<X>& begin,
+ forward_iterator_wrapper<X>& end)
+{ return std::partition_point(begin, end, pred_obj()); }
--- /dev/null
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2008-06-28 Paolo Carlini <paolo.carlini@oracle.com>
+
+// Copyright (C) 2008 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.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <algorithm>
+#include <functional>
+#include <testsuite_api.h>
+
+namespace std
+{
+ using __gnu_test::NonDefaultConstructible;
+
+ typedef NonDefaultConstructible value_type;
+ typedef value_type* iterator_type;
+ typedef std::pointer_to_unary_function<value_type, bool> predicate_type;
+
+ template iterator_type partition_point(iterator_type, iterator_type, predicate_type);
+}
--- /dev/null
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2008-06-28 Paolo Carlini <paolo.carlini@oracle.com>
+
+// Copyright (C) 2008 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.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <algorithm>
+#include <testsuite_character.h>
+
+namespace std
+{
+ using __gnu_test::pod_int;
+
+ typedef pod_int value_type;
+ typedef value_type* iterator_type;
+ typedef std::pointer_to_unary_function<value_type, bool> predicate_type;
+
+ template iterator_type partition_point(iterator_type, iterator_type, predicate_type);
+}
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