From fc99f7809e92e922356761380539cf4c388f48b8 Mon Sep 17 00:00:00 2001 From: Luc Hermitte Date: Sat, 18 Sep 2010 03:29:31 +0200 Subject: [PATCH] re PR libstdc++/45713 (sizeof std::bitset == 1) 2010-09-17 Luc Hermitte Paolo Carlini PR libstdc++/45713 * include/std/bitset: Fix _GLIBCXX_BITSET_WORDS macro. * testsuite/23_containers/bitset/45713.cc: New. Co-Authored-By: Paolo Carlini From-SVN: r164388 --- libstdc++-v3/ChangeLog | 7 ++++++ libstdc++-v3/include/std/bitset | 4 +-- .../testsuite/23_containers/bitset/45713.cc | 25 +++++++++++++++++++ 3 files changed, 34 insertions(+), 2 deletions(-) create mode 100644 libstdc++-v3/testsuite/23_containers/bitset/45713.cc diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index aa9d6249248..f74e54f02ed 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,10 @@ +2010-09-17 Luc Hermitte + Paolo Carlini + + PR libstdc++/45713 + * include/std/bitset: Fix _GLIBCXX_BITSET_WORDS macro. + * testsuite/23_containers/bitset/45713.cc: New. + 2010-09-16 Paolo Carlini * include/bits/stl_raw_storage_iter.h (raw_storage_iterator<>:: diff --git a/libstdc++-v3/include/std/bitset b/libstdc++-v3/include/std/bitset index 909ed770735..6fe1235ee89 100644 --- a/libstdc++-v3/include/std/bitset +++ b/libstdc++-v3/include/std/bitset @@ -53,8 +53,8 @@ #define _GLIBCXX_BITSET_BITS_PER_WORD (__CHAR_BIT__ * sizeof(unsigned long)) #define _GLIBCXX_BITSET_WORDS(__n) \ - ((__n) < 1 ? 0 : ((__n) + _GLIBCXX_BITSET_BITS_PER_WORD - 1) \ - / _GLIBCXX_BITSET_BITS_PER_WORD) + ((__n) / _GLIBCXX_BITSET_BITS_PER_WORD + \ + ((__n) % _GLIBCXX_BITSET_BITS_PER_WORD == 0 ? 0 : 1)) _GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD_D) diff --git a/libstdc++-v3/testsuite/23_containers/bitset/45713.cc b/libstdc++-v3/testsuite/23_containers/bitset/45713.cc new file mode 100644 index 00000000000..8d369d63e18 --- /dev/null +++ b/libstdc++-v3/testsuite/23_containers/bitset/45713.cc @@ -0,0 +1,25 @@ +// Copyright (C) 2010 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 +// . + +// { dg-do compile } + +#include + +// libstdc++/45713 +#if __SIZEOF_SIZE_T__ >= 4 +int test[sizeof(std::bitset<0xffffffff>) != 1 ? 1 : -1]; +#endif