* include/debug/macros.h (__glibcxx_check_non_empty_range): Define.
* include/debug/debug.h (__glibcxx_requires_non_empty_range): Define.
* include/debug/formatter.h (__msg_non_empty_range): Add.
* src/debug.cc: Message text for __msg_non_empty_range.
* include/bits/stl_heap.h (pop_heap): Check for non-empty range.
* testsuite/25_algorithms/pop_heap/empty_neg.cc: New.
From-SVN: r181970
+2011-12-03 Jonathan Wakely <jwakely.gcc@gmail.com>
+
+ * include/debug/macros.h (__glibcxx_check_non_empty_range): Define.
+ * include/debug/debug.h (__glibcxx_requires_non_empty_range): Define.
+ * include/debug/formatter.h (__msg_non_empty_range): Add.
+ * src/debug.cc: Message text for __msg_non_empty_range.
+ * include/bits/stl_heap.h (pop_heap): Check for non-empty range.
+ * testsuite/25_algorithms/pop_heap/empty_neg.cc: New.
+
2011-12-03 Jonathan Wakely <jwakely.gcc@gmail.com>
* doc/xml/manual/utilities.xml: Remove outdated text.
// Heap implementation -*- C++ -*-
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
-// Free Software Foundation, Inc.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+// 2011 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
* @brief Pop an element off a heap.
* @param __first Start of heap.
* @param __last End of heap.
+ * @pre [__first, __last) is a valid, non-empty range.
* @ingroup heap_algorithms
*
* This operation pops the top of the heap. The elements __first
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
__glibcxx_function_requires(_LessThanComparableConcept<_ValueType>)
+ __glibcxx_requires_non_empty_range(__first, __last);
__glibcxx_requires_valid_range(__first, __last);
__glibcxx_requires_heap(__first, __last);
// Debugging support implementation -*- C++ -*-
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
# define _GLIBCXX_DEBUG_ONLY(_Statement) ;
# define __glibcxx_requires_cond(_Cond,_Msg)
# define __glibcxx_requires_valid_range(_First,_Last)
+# define __glibcxx_requires_non_empty_range(_First,_Last)
# define __glibcxx_requires_sorted(_First,_Last)
# define __glibcxx_requires_sorted_pred(_First,_Last,_Pred)
# define __glibcxx_requires_sorted_set(_First1,_Last1,_First2)
# define __glibcxx_requires_cond(_Cond,_Msg) _GLIBCXX_DEBUG_VERIFY(_Cond,_Msg)
# define __glibcxx_requires_valid_range(_First,_Last) \
__glibcxx_check_valid_range(_First,_Last)
+# define __glibcxx_requires_non_empty_range(_First,_Last) \
+ __glibcxx_check_non_empty_range(_First,_Last)
# define __glibcxx_requires_sorted(_First,_Last) \
__glibcxx_check_sorted(_First,_Last)
# define __glibcxx_requires_sorted_pred(_First,_Last,_Pred) \
__msg_erase_after_bad,
__msg_valid_range2,
// unordered sequence local iterators
- __msg_local_iter_compare_bad
+ __msg_local_iter_compare_bad,
+ __msg_non_empty_range
};
class _Error_formatter
._M_iterator(_First, #_First) \
._M_iterator(_Last, #_Last))
+// Verify that [_First, _Last) forms a non-empty iterator range.
+#define __glibcxx_check_non_empty_range(_First,_Last) \
+_GLIBCXX_DEBUG_VERIFY(_First != _Last, \
+ _M_message(__gnu_debug::__msg_non_empty_range) \
+ ._M_iterator(_First, #_First) \
+ ._M_iterator(_Last, #_Last))
+
/** Verify that we can insert into *this with the iterator _Position.
* Insertion into a container at a specific position requires that
* the iterator be nonsingular, either dereferenceable or past-the-end,
", \"%2.name;\" shall be before and not equal to \"%3.name;\"",
// std::unordered_container::local_iterator
"attempt to compare local iterators from different unordered container"
- " buckets"
+ " buckets",
+ "function requires a non-empty iterator range [%1.name;, %2.name;)"
};
void
--- /dev/null
+// Copyright (C) 2011 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 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 COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 25.3.6 Heap operations [lib.alg.heap.operations]
+
+// { dg-require-debug-mode "" }
+// { dg-do run { xfail *-*-* } }
+
+#include <algorithm>
+
+void
+test01()
+{
+ int i = 0;
+ std::pop_heap(&i, &i);
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}