re PR libstdc++/60519 (Debug mode should check comparators for irreflexivity)

2015-08-24  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/60519
	* include/debug/formatter.h (_Debug_msg_id::__msg_irreflexive_ordering):
	New enum entry.
	* include/debug/functions.h (_Irreflexive_checker): New.
	(__is_irreflexive, __is_irreflexive_pred): New.
	* include/debug/macros.h
	(__glibcxx_check_irreflexive, __glibcxx_check_irreflexive_pred): New
	macros.
	(__glibcxx_check_irreflexive2, __glibcxx_check_irreflexive_pred2): New
	macros limited to post-C++11 mode.
	* include/debug/debug.h
	(__glibcxx_requires_irreflexive, __glibcxx_requires_irreflexive_pred):
	New macros, use latter.
	(__glibcxx_requires_irreflexive2, __glibcxx_requires_irreflexive_pred2):
	Likewise.
	* include/bits/stl_algo.h
	(partial_sort_copy): Add irreflexive debug check.
	(partial_sort_copy): Likewise.
	(lower_bound): Likewise.
	(upper_bound): Likewise.
	(equal_range): Likewise.
	(binary_search): Likewise.
	(inplace_merge): Likewise.
	(includes): Likewise.
	(next_permutation): Likewise.
	(prev_permutation): Likewise.
	(is_sorted_until): Likewise.
	(minmax_element): Likewise.
	(partial_sort): Likewise.
	(nth_element): Likewise.
	(sort): Likewise.
	(merge): Likewise.
	(stable_sort): Likewise.
	(set_union): Likewise.
	(set_intersection): Likewise.
	(set_difference): Likewise.
	(set_symmetric_difference): Likewise.
	(min_element): Likewise.
	(max_element): Likewise.
	* include/bits/stl_algobase.h
	(lower_bound): Likewise.
	(lexicographical_compare): Likewise.
	* include/bits/stl_heap.h
	(push_heap): Likewise.
	(pop_heap): Likewise.
	(make_heap): Likewise.
	(sort_heap): Likewise.
	(is_heap_until): Likewise.
	* testsuite/25_algorithms/lexicographical_compare/debug/
	irreflexive_neg.cc: New.
	* testsuite/25_algorithms/lower_bound/debug/irreflexive.cc: New.
	* testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
	New.

From-SVN: r227189

1 files changed, 43 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc b/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc
new file mode 100644
index 00000000000..0218a269e19
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc
@@ -0,0 +1,43 @@
+// Copyright (C) 2015 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/>.
+//
+// { dg-require-debug-mode "" }
+// { dg-do run { xfail *-*-* } }
+
+#include <algorithm>
+
+bool
+bad_lower(int lhs, int rhs)
+{
+  if (lhs == 0)
+    return true;
+
+  return lhs < rhs;
+}
+
+void test01()
+{
+  int ins[] { 0, 1, 2, 3 };
+  int outs[] { 9, 9 };
+  std::partial_sort_copy(ins, ins + 4, outs, outs + 2, bad_lower);
+}
+
+int main()
+{
+  test01();
+  return 0;
+}