https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84159
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Tue May 15 12:57:25 2018 New Revision: 260257 URL: https://gcc.gnu.org/viewcvs?rev=260257&root=gcc&view=rev Log: PR libstdc++/84159 fix appending strings to paths The path::operator/=(const Source&) and path::append overloads were still following the semantics of the Filesystem TS not C++17. Only the path::operator/=(const path&) overload was correct. This change adds more tests for path::operator/=(const path&) and adds new tests to verify that the other append operations have equivalent behaviour. PR libstdc++/84159 * include/bits/fs_path.h (path::operator/=, path::append): Construct temporary path before calling _M_append. (path::_M_append): Change parameter to path and implement C++17 semantics. * testsuite/27_io/filesystem/path/append/path.cc: Add helper function and more examples from the standard. * testsuite/27_io/filesystem/path/append/source.cc: New. * testsuite/27_io/filesystem/path/decompose/filename.cc: Add comment. * testsuite/27_io/filesystem/path/nonmember/append.cc: New. Added: branches/gcc-8-branch/libstdc++-v3/testsuite/27_io/filesystem/path/append/source.cc branches/gcc-8-branch/libstdc++-v3/testsuite/27_io/filesystem/path/nonmember/append.cc - copied, changed from r260247, branches/gcc-8-branch/libstdc++-v3/testsuite/27_io/filesystem/path/append/path.cc Modified: branches/gcc-8-branch/libstdc++-v3/ChangeLog branches/gcc-8-branch/libstdc++-v3/include/bits/fs_path.h branches/gcc-8-branch/libstdc++-v3/testsuite/27_io/filesystem/path/append/path.cc branches/gcc-8-branch/libstdc++-v3/testsuite/27_io/filesystem/path/decompose/filename.cc