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* [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable
@ 2013-09-03 11:43 languitar at semipol dot de
  2013-09-03 12:17 ` [Bug c++/58305] " paolo.carlini at oracle dot com
                   ` (8 more replies)
  0 siblings, 9 replies; 10+ messages in thread
From: languitar at semipol dot de @ 2013-09-03 11:43 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

            Bug ID: 58305
           Summary: Deprecation warning for class not raised when not
                    assigning to a variable
           Product: gcc
           Version: 4.6.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: languitar at semipol dot de

Deprecation warnings for classes do not work in case the class is used but not
assigned to a variable. The following code snippet illustrates the error:

class ToBeDeprecated {
} __attribute__ ((deprecated ("deprecated!")));

ToBeDeprecated()

Despite using the class, no deprecation warning is shown. If I change the use
to

ToBeDeprecated x;

a warning is shown.


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
@ 2013-09-03 12:17 ` paolo.carlini at oracle dot com
  2013-09-03 12:21 ` languitar at semipol dot de
                   ` (7 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-09-03 12:17 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2013-09-03
     Ever confirmed|0                           |1

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Please provide a self-contained reproducer, what you provided doesn't compile
at all.


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
  2013-09-03 12:17 ` [Bug c++/58305] " paolo.carlini at oracle dot com
@ 2013-09-03 12:21 ` languitar at semipol dot de
  2013-09-03 12:24 ` paolo.carlini at oracle dot com
                   ` (6 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: languitar at semipol dot de @ 2013-09-03 12:21 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

--- Comment #2 from Johannes Wienke <languitar at semipol dot de> ---
class ToBeDeprecated {
} __attribute__ ((deprecated ("deprecated!")));

int main() {
    ToBeDeprecated();
    ToBeDeprecated x;
    return 0;
}

The first use does not issue the warning, the second does.


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
  2013-09-03 12:17 ` [Bug c++/58305] " paolo.carlini at oracle dot com
  2013-09-03 12:21 ` languitar at semipol dot de
@ 2013-09-03 12:24 ` paolo.carlini at oracle dot com
  2013-09-03 13:14 ` paolo.carlini at oracle dot com
                   ` (5 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-09-03 12:24 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
                   ` (2 preceding siblings ...)
  2013-09-03 12:24 ` paolo.carlini at oracle dot com
@ 2013-09-03 13:14 ` paolo.carlini at oracle dot com
  2013-09-03 19:46 ` paolo.carlini at oracle dot com
                   ` (4 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-09-03 13:14 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Ok, this seems easy to fix.


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
                   ` (3 preceding siblings ...)
  2013-09-03 13:14 ` paolo.carlini at oracle dot com
@ 2013-09-03 19:46 ` paolo.carlini at oracle dot com
  2013-09-04  0:56 ` paolo.carlini at oracle dot com
                   ` (3 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-09-03 19:46 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |NEW
           Assignee|paolo.carlini at oracle dot com    |unassigned at gcc dot gnu.org

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Unfortunately not trivial to do, because, per the general rules about
deprecated types, given:

  typedef ToBeDeprecated NotToBeDeprecated;

we do *not* warn to warn for either:

  NotToBeDeprecated();
  NotToBeDeprecated y;

Anyway, not a regression, icc behaves like gcc, etc: the issue has to wait a
bit.


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
                   ` (4 preceding siblings ...)
  2013-09-03 19:46 ` paolo.carlini at oracle dot com
@ 2013-09-04  0:56 ` paolo.carlini at oracle dot com
  2013-09-04  8:57 ` paolo at gcc dot gnu.org
                   ` (2 subsequent siblings)
  8 siblings, 0 replies; 10+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-09-04  0:56 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com
   Target Milestone|---                         |4.9.0


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
                   ` (5 preceding siblings ...)
  2013-09-04  0:56 ` paolo.carlini at oracle dot com
@ 2013-09-04  8:57 ` paolo at gcc dot gnu.org
  2013-09-04  8:58 ` paolo.carlini at oracle dot com
  2013-09-04  9:03 ` languitar at semipol dot de
  8 siblings, 0 replies; 10+ messages in thread
From: paolo at gcc dot gnu.org @ 2013-09-04  8:57 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

--- Comment #5 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Wed Sep  4 08:57:26 2013
New Revision: 202242

URL: http://gcc.gnu.org/viewcvs?rev=202242&root=gcc&view=rev
Log:
/cp
2013-09-03  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/58305
    * typeck2.c (build_functional_cast): Maybe warn_deprecated_use.

/testsuite
2013-09-03  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/58305
    * g++.dg/warn/deprecated-8.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/warn/deprecated-8.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/typeck2.c
    trunk/gcc/testsuite/ChangeLog


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
                   ` (6 preceding siblings ...)
  2013-09-04  8:57 ` paolo at gcc dot gnu.org
@ 2013-09-04  8:58 ` paolo.carlini at oracle dot com
  2013-09-04  9:03 ` languitar at semipol dot de
  8 siblings, 0 replies; 10+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-09-04  8:58 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed for 4.9.0.


^ permalink raw reply	[flat|nested] 10+ messages in thread

* [Bug c++/58305] Deprecation warning for class not raised when not assigning to a variable
  2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
                   ` (7 preceding siblings ...)
  2013-09-04  8:58 ` paolo.carlini at oracle dot com
@ 2013-09-04  9:03 ` languitar at semipol dot de
  8 siblings, 0 replies; 10+ messages in thread
From: languitar at semipol dot de @ 2013-09-04  9:03 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58305

--- Comment #7 from Johannes Wienke <languitar at semipol dot de> ---
Thanks!


^ permalink raw reply	[flat|nested] 10+ messages in thread

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2013-09-03 11:43 [Bug c++/58305] New: Deprecation warning for class not raised when not assigning to a variable languitar at semipol dot de
2013-09-03 12:17 ` [Bug c++/58305] " paolo.carlini at oracle dot com
2013-09-03 12:21 ` languitar at semipol dot de
2013-09-03 12:24 ` paolo.carlini at oracle dot com
2013-09-03 13:14 ` paolo.carlini at oracle dot com
2013-09-03 19:46 ` paolo.carlini at oracle dot com
2013-09-04  0:56 ` paolo.carlini at oracle dot com
2013-09-04  8:57 ` paolo at gcc dot gnu.org
2013-09-04  8:58 ` paolo.carlini at oracle dot com
2013-09-04  9:03 ` languitar at semipol dot de

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