[Bug libstdc++/96484] Horrible performance of std::read_symlink

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96484

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>:

https://gcc.gnu.org/g:6a13a4e3f29fc4ce5eff96d74ba965c9fdc02184

commit r11-2597-g6a13a4e3f29fc4ce5eff96d74ba965c9fdc02184
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Thu Aug 6 18:44:50 2020 +0100

    libstdc++: Fix unnecessary allocations in read_symlink [PR 96484]

    libstdc++-v3/ChangeLog:

            PR libstdc++/96484
            * src/c++17/fs_ops.cc (fs::read_symlink): Return an error
            immediately for non-symlinks.
            * src/filesystem/ops.cc (fs::read_symlink): Likewise.