[Bug libstdc++/59427] Opening with ios::in | ios::app does not allow appending

[paolo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59427

--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Mon Dec  9 23:02:18 2013
New Revision: 205837

URL: http://gcc.gnu.org/viewcvs?rev=205837&root=gcc&view=rev
Log:
2013-12-09  Paolo Carlini  <paolo.carl...@oracle.com>

    PR libstdc++/59427
    * include/bits/fstream.tcc (basic_filebuf<>::overflow,
    basic_filebuf<>::xsputn): Per lwg/596, ios_base::app implies
    ios_base:out.
    * include/std/fstream (basic_filebuf<>::_M_set_buffer): Likewise.
    * testsuite/27_io/basic_filebuf/sputc/char/59427.cc: New.
    * testsuite/27_io/basic_filebuf/sputn/char/59427.cc: Likewise.

Added:
    trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/sputc/char/59427.cc
    trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/sputn/char/59427.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/fstream.tcc
    trunk/libstdc++-v3/include/std/fstream