[Bug libstdc++/82777] incorrect result of std::filesystem::path::lexically_normal

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82777

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Wed Nov  1 17:09:14 2017
New Revision: 254317

URL: https://gcc.gnu.org/viewcvs?rev=254317&root=gcc&view=rev
Log:
PR libstdc++/82777 fix path normalization for dot-dot

        PR libstdc++/82777
        * src/filesystem/std-path.cc (path::lexically_normal): Remove dot-dot
        elements correctly.
        * testsuite/27_io/filesystem/path/generation/normal.cc: Add testcase.
        * testsuite/util/testsuite_fs.h (compare_paths): Improve exception
        text.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/src/filesystem/std-path.cc
    trunk/libstdc++-v3/testsuite/27_io/filesystem/path/generation/normal.cc
    trunk/libstdc++-v3/testsuite/util/testsuite_fs.h