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r164529 - in /trunk/libstdc++-v3: ChangeLog con...
- From: paolo at gcc dot gnu dot org
- To: libstdc++-cvs at gcc dot gnu dot org
- Date: Wed, 22 Sep 2010 19:40:44 -0000
- Subject: r164529 - in /trunk/libstdc++-v3: ChangeLog con...
Author: paolo
Date: Wed Sep 22 19:40:43 2010
New Revision: 164529
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164529
Log:
2010-09-22 David Krauss <potswa@mac.com>
PR libstdc++/45628
* include/bits/fstream.tcc (basic_filebuf::underflow): Add state
transition to avoid modality requiring seekoff(0,ios::cur).
(basic_filebuf::pbackfail): Likewise.
(basic_filebuf::overflow): Likewise.
(basic_filebuf::_M_seek): Avoid minor unnecessary conversion.
(basic_filebuf::seekoff): Remove code to _M_get_ext_pos; make
(0, ios::cur) a special case preserving buffer contents.
(basic_filebuf::_M_get_ext_pos): New function to obtain status
about codecvt extern_t buffer for overflow and seekoff.
* include/std/fstream (basic_filebuf::_M_get_ext_pos): Likewise.
* config/abi/pre/gnu.ver: Export new symbols.
* testsuite/27_io/basic_filebuf/seekoff/char/45628-1.cc: New,
verifies that seekoff(0, ios::cur) preserves buffers.
* testsuite/27_io/basic_filebuf/seekoff/char/45628-2.cc: Likewise.
for codecvt case. More lenient as it may still flush put area.
* testsuite/27_io/basic_filebuf/seekoff/char/4.cc: Modify to
check that seekoff is not required between read and write.
* testsuite/27_io/basic_filebuf/seekoff/wchar_t/4.cc: Likewise.
* testsuite/27_io/basic_filebuf/sync/wchar_t/1.cc: Remove.
* testsuite/27_io/basic_filebuf/sync/wchar_t/1.cc: Likewise.
* testsuite/util/testsuite_character.h (codecvt::do_length): Comply
with 22.2.1.5.2/10 "Returns ... the LARGEST value in the range..."
Added:
trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/45628-2.cc
trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/char/45628-1.cc
Removed:
trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/sync/char/1.cc
trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/sync/wchar_t/
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/config/abi/pre/gnu.ver
trunk/libstdc++-v3/include/bits/fstream.tcc
trunk/libstdc++-v3/include/std/fstream
trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/char/4.cc
trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/4.cc
trunk/libstdc++-v3/testsuite/util/testsuite_character.h