https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85343
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Tue Aug 14 12:09:57 2018 New Revision: 263535 URL: https://gcc.gnu.org/viewcvs?rev=263535&root=gcc&view=rev Log: PR libstdc++/85343 overload __throw_ios_failure to take errno [ios::failure] p2: "When throwing ios_base::failure exceptions, implementations should provide values of ec that identify the specific reason for the failure." This adds a new overload of __throw_ios_failure that can be passed errno, to store error_code(errno, system_category()) in the exception object. PR libstdc++/85343 * acinclude.m4 (libtool_VERSION): Bump version. * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add new symbol version. Export new symbol. * configure: Regenerate. * doc/xml/manual/abi.xml: Document new versions. * include/bits/fstream.tcc (basic_filebuf<C, T>::underflow) (basic_filebuf<C, T>::xsgetn): Pass errno to __throw_ios_failure. * include/bits/functexcept.h (__throw_ios_failure(const char*, int)): Declare new overload. * src/c++11/cxx11-ios_failure.cc (__ios_failure): Add new constructor and static member function. (__throw_ios_failure(const char*, int)): Define. * src/c++98/ios_failure.cc [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure(const char*, int)): Define. * testsuite/util/testsuite_abi.cc: Update known and latest versions. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/config/abi/pre/gnu.ver trunk/libstdc++-v3/doc/xml/manual/abi.xml trunk/libstdc++-v3/include/bits/fstream.tcc trunk/libstdc++-v3/include/bits/functexcept.h trunk/libstdc++-v3/src/c++11/cxx11-ios_failure.cc trunk/libstdc++-v3/src/c++98/ios_failure.cc
