https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83306
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Wed Nov 28 15:27:11 2018 New Revision: 266565 URL: https://gcc.gnu.org/viewcvs?rev=266565&root=gcc&view=rev Log: PR libstdc++/83306 make filesystem_error no-throw copyable The class API provides no way to modify the members, so we can share them between copies of the same object. Copying becomes a simple reference count update, which doesn't throw. Also adjust the what() string to allow distinguishing between an empty path passed to the constructor, and no path. PR libstdc++/83306 * include/bits/fs_path.h (filesystem_error): Move data members into pimpl class owned by shared_ptr. Remove inline definitions of member functions. * src/filesystem/std-path.cc (filesystem_error::_Impl): Define. (filesystem_error): Define member functions. * testsuite/27_io/filesystem/filesystem_error/cons.cc: New test. * testsuite/27_io/filesystem/filesystem_error/copy.cc: New test. Added: trunk/libstdc++-v3/testsuite/27_io/filesystem/filesystem_error/ trunk/libstdc++-v3/testsuite/27_io/filesystem/filesystem_error/cons.cc trunk/libstdc++-v3/testsuite/27_io/filesystem/filesystem_error/copy.cc Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/bits/fs_path.h trunk/libstdc++-v3/src/filesystem/std-path.cc
