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From: Ken Matsui <kmatsui@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r12-10089] libstdc++: Fix error handling in filesystem::equivalent [PR113250] Date: Thu, 11 Jan 2024 11:43:55 +0000 (GMT) [thread overview] Message-ID: <20240111114355.AC0D4385771D@sourceware.org> (raw) https://gcc.gnu.org/g:da19967df3ad5d123888ef24b4fd84be047df226 commit r12-10089-gda19967df3ad5d123888ef24b4fd84be047df226 Author: Ken Matsui <kmatsui@gcc.gnu.org> Date: Wed Jan 10 22:08:07 2024 -0800 libstdc++: Fix error handling in filesystem::equivalent [PR113250] This patch made std::filesystem::equivalent correctly throw an exception when either path does not exist as per [fs.op.equivalent]/4. PR libstdc++/113250 libstdc++-v3/ChangeLog: * src/c++17/fs_ops.cc (fs::equivalent): Use || instead of &&. * src/filesystem/ops.cc (fs::equivalent): Likewise. * testsuite/27_io/filesystem/operations/equivalent.cc: Handle error codes. * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise. Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org> Reviewed-by: Jonathan Wakely <jwakely@redhat.com> (cherry picked from commit df147e2ee7199d33d66959c6509ce9c21072077f) Diff: --- libstdc++-v3/src/c++17/fs_ops.cc | 2 +- libstdc++-v3/src/filesystem/ops.cc | 2 +- libstdc++-v3/testsuite/27_io/filesystem/operations/equivalent.cc | 4 ++-- .../testsuite/experimental/filesystem/operations/equivalent.cc | 4 ++-- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/libstdc++-v3/src/c++17/fs_ops.cc b/libstdc++-v3/src/c++17/fs_ops.cc index 8e612334613..91caff8cd47 100644 --- a/libstdc++-v3/src/c++17/fs_ops.cc +++ b/libstdc++-v3/src/c++17/fs_ops.cc @@ -897,7 +897,7 @@ fs::equivalent(const path& p1, const path& p2, error_code& ec) noexcept return st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino; #endif } - else if (!exists(s1) && !exists(s2)) + else if (!exists(s1) || !exists(s2)) ec = std::make_error_code(std::errc::no_such_file_or_directory); else if (err) ec.assign(err, std::generic_category()); diff --git a/libstdc++-v3/src/filesystem/ops.cc b/libstdc++-v3/src/filesystem/ops.cc index 896a4918ace..e7481eb0e1b 100644 --- a/libstdc++-v3/src/filesystem/ops.cc +++ b/libstdc++-v3/src/filesystem/ops.cc @@ -764,7 +764,7 @@ fs::equivalent(const path& p1, const path& p2, error_code& ec) noexcept return false; return st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino; } - else if (!exists(s1) && !exists(s2)) + else if (!exists(s1) || !exists(s2)) ec = std::make_error_code(std::errc::no_such_file_or_directory); else if (err) ec.assign(err, std::generic_category()); diff --git a/libstdc++-v3/testsuite/27_io/filesystem/operations/equivalent.cc b/libstdc++-v3/testsuite/27_io/filesystem/operations/equivalent.cc index 26bcd009360..9fe57430df3 100644 --- a/libstdc++-v3/testsuite/27_io/filesystem/operations/equivalent.cc +++ b/libstdc++-v3/testsuite/27_io/filesystem/operations/equivalent.cc @@ -34,13 +34,13 @@ test01() bool result; result = equivalent(p1, p2, ec); - VERIFY( ec ); + VERIFY( ec == std::errc::no_such_file_or_directory ); VERIFY( !result ); __gnu_test::scoped_file f1(p1); ec = bad_ec; result = equivalent(p1, p2, ec); - VERIFY( !ec ); + VERIFY( ec == std::errc::no_such_file_or_directory ); VERIFY( !result ); __gnu_test::scoped_file f2(p2); diff --git a/libstdc++-v3/testsuite/experimental/filesystem/operations/equivalent.cc b/libstdc++-v3/testsuite/experimental/filesystem/operations/equivalent.cc index 618d4be24b4..84e4835b3cb 100644 --- a/libstdc++-v3/testsuite/experimental/filesystem/operations/equivalent.cc +++ b/libstdc++-v3/testsuite/experimental/filesystem/operations/equivalent.cc @@ -35,13 +35,13 @@ test01() bool result; result = equivalent(p1, p2, ec); - VERIFY( ec ); + VERIFY( ec == std::errc::no_such_file_or_directory ); VERIFY( !result ); const auto bad_ec = ec; __gnu_test::scoped_file f1(p1); result = equivalent(p1, p2, ec); - VERIFY( !ec ); + VERIFY( ec == std::errc::no_such_file_or_directory ); VERIFY( !result ); __gnu_test::scoped_file f2(p2);
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