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| author | Paolo Carlini <pcarlini@suse.de> | 2004-05-14 17:01:49 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2004-05-14 17:01:49 +0000 |
| commit | 394ef95eafc76d2b28c833cec76984953f3308d3 (patch) | |
| tree | c01de593f8968a43cb28ad388afc1f6c5d2f5f09 | |
| parent | a01a235c76298c4f4e67e8128c416fe24724c865 (diff) | |
| download | gcc-394ef95eafc76d2b28c833cec76984953f3308d3.zip gcc-394ef95eafc76d2b28c833cec76984953f3308d3.tar.gz gcc-394ef95eafc76d2b28c833cec76984953f3308d3.tar.bz2 | |
re PR libstdc++/15361 (bitset<>::_Find_next fails)
2004-05-14 Paolo Carlini <pcarlini@suse.de>
Ivan Godard <igodard@pacbell.net>
PR libstdc++/15361
* include/std/std_bitset.h (_Base_bitset<_Nw>::_M_do_find_next): Fix.
* testsuite/23_containers/bitset/ext/15361.cc: New.
Co-Authored-By: Ivan Godard <igodard@pacbell.net>
From-SVN: r81852
| -rw-r--r-- | libstdc++-v3/ChangeLog | 7 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/std_bitset.h | 6 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc | 40 |
3 files changed, 50 insertions, 3 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index f4cf9ae..6b44761 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,10 @@ +2004-05-14 Paolo Carlini <pcarlini@suse.de> + Ivan Godard <igodard@pacbell.net> + + PR libstdc++/15361 + * include/std/std_bitset.h (_Base_bitset<_Nw>::_M_do_find_next): Fix. + * testsuite/23_containers/bitset/ext/15361.cc: New. + 2004-05-13 Benjamin Kosnik <bkoz@redhat.com> PR libstdc++/15046 diff --git a/libstdc++-v3/include/std/std_bitset.h b/libstdc++-v3/include/std/std_bitset.h index fba62c1..01e3f90 100644 --- a/libstdc++-v3/include/std/std_bitset.h +++ b/libstdc++-v3/include/std/std_bitset.h @@ -1,6 +1,6 @@ // <bitset> -*- C++ -*- -// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. +// Copyright (C) 2001, 2002, 2003, 2004 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 @@ -290,7 +290,7 @@ namespace _GLIBCXX_STD ++__prev; // check out of bounds - if ( __prev >= _Nw * _GLIBCXX_BITSET_BITS_PER_WORD ) + if (__prev >= _Nw * _GLIBCXX_BITSET_BITS_PER_WORD) return __not_found; // search first word @@ -298,7 +298,7 @@ namespace _GLIBCXX_STD _WordT __thisword = _M_w[__i]; // mask off bits below bound - __thisword >>= __prev + 1; + __thisword &= (~static_cast<_WordT>(0)) << _S_whichbit(__prev); if (__thisword != static_cast<_WordT>(0)) return __i * _GLIBCXX_BITSET_BITS_PER_WORD diff --git a/libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc b/libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc new file mode 100644 index 0000000..e42d649 --- /dev/null +++ b/libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc @@ -0,0 +1,40 @@ +// Copyright (C) 2004 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +#include <bitset> +#include <testsuite_hooks.h> + +// libstdc++/15361 +void test01() +{ + using namespace std; + bool test __attribute__((unused)) = true; + + bitset<256> b; + b.set(225); + b.set(226); + + VERIFY( b._Find_first() == 225 ); + VERIFY( b._Find_next(225) == 226 ); +} + +int main() +{ + test01(); + return 0; +} |