+2012-10-05 Marc Glisse <marc.glisse@inria.fr>
+
+ PR libstdc++/54686
+ * include/c_std/cstdlib (abs(long long)): Define with
+ __builtin_llabs when we have long long.
+ (abs(long)): Use __builtin_labs.
+ (abs(__int128)): Define when we have __int128.
+ * testsuite/26_numerics/headers/cstdlib/54686.c: New file.
+
2012-10-03 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/53248
#endif // _GLIBCXX_USE_WCHAR_T
inline long
- abs(long __i) { return labs(__i); }
+ abs(long __i) { return __builtin_labs(__i); }
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+ inline long long
+ abs(long long __x) { return __builtin_llabs (__x); }
+#endif
+
+#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
+ inline __int128
+ abs(__int128 __x) { return __x >= 0 ? __x : -__x; }
+#endif
inline ldiv_t
div(long __i, long __j) { return ldiv(__i, __j); }
using ::_Exit;
#endif
- inline long long
- abs(long long __x) { return __x >= 0 ? __x : -__x; }
-
#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
using ::llabs;
using ::__gnu_cxx::lldiv_t;
#endif
using ::__gnu_cxx::_Exit;
- using ::__gnu_cxx::abs;
#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
using ::__gnu_cxx::llabs;
using ::__gnu_cxx::div;
--- /dev/null
+// { dg-do compile }
+// { dg-options "-std=c++11" }
+
+// Copyright (C) 2012 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 <cmath>
+#include <cstdlib>
+#include <type_traits>
+#include <utility>
+
+#ifdef _GLIBCXX_USE_LONG_LONG
+void test01()
+{
+ static_assert (std::is_same<decltype (std::abs (std::declval<long long> ())),
+ long long>::value, "Missing abs(long long)");
+}
+#endif