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[Bug libstdc++/81751] __basic_file::sync() may flush _all_ files
- From: "redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 09 Aug 2017 17:52:43 +0000
- Subject: [Bug libstdc++/81751] __basic_file::sync() may flush _all_ files
- Auto-submitted: auto-generated
- References: <bug-81751-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81751
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Wed Aug 9 17:52:10 2017
New Revision: 250993
URL: https://gcc.gnu.org/viewcvs?rev=250993&root=gcc&view=rev
Log:
PR libstdc++/81751 don't call fflush(NULL)
PR libstdc++/79820
PR libstdc++/81751
* config/io/basic_file_stdio.cc (sys_open(FILE*, ios_base::openmode)):
Call fflush on the stream instead of calling sync() while _M_cfile is
null. Restore original value of errno.
* testsuite/ext/stdio_filebuf/char/79820.cc: New.
* testsuite/ext/stdio_filebuf/char/81751.cc: New.
Added:
trunk/libstdc++-v3/testsuite/ext/stdio_filebuf/char/79820.cc
trunk/libstdc++-v3/testsuite/ext/stdio_filebuf/char/81751.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/config/io/basic_file_stdio.cc