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* [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw
@ 2024-01-06  1:56 davidepesa at gmail dot com
  2024-01-06  9:09 ` [Bug libstdc++/113250] " redi at gcc dot gnu.org
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: davidepesa at gmail dot com @ 2024-01-06  1:56 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

            Bug ID: 113250
           Summary: std::filesystem::equivalent("", "/") should throw
           Product: gcc
           Version: 13.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: davidepesa at gmail dot com
  Target Milestone: ---

According to https://eel.is/c++draft/fs.op.equivalent

> !exists(p1) || !exists(p2) is an error.

However, equivalent("", "/") returns false instead of throwing
filesystem_error.

This is possibly due to a typo here:
https://github.com/gcc-mirror/gcc/blob/5a0b3355d956f5d36f9b562e027b890cc5f61d88/libstdc%2B%2B-v3/src/c%2B%2B17/fs_ops.cc#L900
(&& instead of ||)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
@ 2024-01-06  9:09 ` redi at gcc dot gnu.org
  2024-01-11  4:54 ` kmatsui at gcc dot gnu.org
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2024-01-06  9:09 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2024-01-06
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Yes, I think you're right about the typo

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
  2024-01-06  9:09 ` [Bug libstdc++/113250] " redi at gcc dot gnu.org
@ 2024-01-11  4:54 ` kmatsui at gcc dot gnu.org
  2024-01-11  4:55 ` kmatsui at gcc dot gnu.org
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: kmatsui at gcc dot gnu.org @ 2024-01-11  4:54 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

Ken Matsui <kmatsui at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kmatsui at gcc dot gnu.org

--- Comment #2 from Ken Matsui <kmatsui at gcc dot gnu.org> ---
Confirmed.  I think the testcase should also be like the following.

--- a/libstdc++-v3/testsuite/27_io/filesystem/operations/equivalent.cc
+++ b/libstdc++-v3/testsuite/27_io/filesystem/operations/equivalent.cc
@@ -40,7 +40,7 @@ test01()
   __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 );

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
  2024-01-06  9:09 ` [Bug libstdc++/113250] " redi at gcc dot gnu.org
  2024-01-11  4:54 ` kmatsui at gcc dot gnu.org
@ 2024-01-11  4:55 ` kmatsui at gcc dot gnu.org
  2024-01-11 11:39 ` cvs-commit at gcc dot gnu.org
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: kmatsui at gcc dot gnu.org @ 2024-01-11  4:55 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

Ken Matsui <kmatsui at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
                   ` (2 preceding siblings ...)
  2024-01-11  4:55 ` kmatsui at gcc dot gnu.org
@ 2024-01-11 11:39 ` cvs-commit at gcc dot gnu.org
  2024-01-11 11:42 ` cvs-commit at gcc dot gnu.org
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-01-11 11:39 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Ken Matsui <kmatsui@gcc.gnu.org>:

https://gcc.gnu.org/g:df147e2ee7199d33d66959c6509ce9c21072077f

commit r14-7135-gdf147e2ee7199d33d66959c6509ce9c21072077f
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>

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
                   ` (3 preceding siblings ...)
  2024-01-11 11:39 ` cvs-commit at gcc dot gnu.org
@ 2024-01-11 11:42 ` cvs-commit at gcc dot gnu.org
  2024-01-11 11:43 ` cvs-commit at gcc dot gnu.org
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-01-11 11:42 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Ken Matsui
<kmatsui@gcc.gnu.org>:

https://gcc.gnu.org/g:3e51890ef351e7fb9e836c6a48f20ca97294dc16

commit r13-8209-g3e51890ef351e7fb9e836c6a48f20ca97294dc16
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)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
                   ` (4 preceding siblings ...)
  2024-01-11 11:42 ` cvs-commit at gcc dot gnu.org
@ 2024-01-11 11:43 ` cvs-commit at gcc dot gnu.org
  2024-01-11 11:44 ` cvs-commit at gcc dot gnu.org
  2024-01-11 12:31 ` kmatsui at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-01-11 11:43 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Ken Matsui
<kmatsui@gcc.gnu.org>:

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)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
                   ` (5 preceding siblings ...)
  2024-01-11 11:43 ` cvs-commit at gcc dot gnu.org
@ 2024-01-11 11:44 ` cvs-commit at gcc dot gnu.org
  2024-01-11 12:31 ` kmatsui at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-01-11 11:44 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Ken Matsui
<kmatsui@gcc.gnu.org>:

https://gcc.gnu.org/g:6c4882dd9453d096429cfb4652f25915a931e155

commit r11-11188-g6c4882dd9453d096429cfb4652f25915a931e155
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)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/113250] std::filesystem::equivalent("", "/") should throw
  2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
                   ` (6 preceding siblings ...)
  2024-01-11 11:44 ` cvs-commit at gcc dot gnu.org
@ 2024-01-11 12:31 ` kmatsui at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: kmatsui at gcc dot gnu.org @ 2024-01-11 12:31 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113250

Ken Matsui <kmatsui at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED
   Target Milestone|---                         |11.5

--- Comment #7 from Ken Matsui <kmatsui at gcc dot gnu.org> ---
Fixed in 11.5, 12.4, 13.3.  Thank you for filing this issue, Davide!

^ permalink raw reply	[flat|nested] 9+ messages in thread

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2024-01-06  1:56 [Bug libstdc++/113250] New: std::filesystem::equivalent("", "/") should throw davidepesa at gmail dot com
2024-01-06  9:09 ` [Bug libstdc++/113250] " redi at gcc dot gnu.org
2024-01-11  4:54 ` kmatsui at gcc dot gnu.org
2024-01-11  4:55 ` kmatsui at gcc dot gnu.org
2024-01-11 11:39 ` cvs-commit at gcc dot gnu.org
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