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* [Bug c++/55557] New: g++ 4.7 does not issue a warning on the first auto_ptr
@ 2012-12-01 20:43 pashev.igor at gmail dot com
  2012-12-01 20:46 ` [Bug c++/55557] " pashev.igor at gmail dot com
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: pashev.igor at gmail dot com @ 2012-12-01 20:43 UTC (permalink / raw)
  To: gcc-bugs


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55557

             Bug #: 55557
           Summary: g++ 4.7 does not issue a warning on the first auto_ptr
    Classification: Unclassified
           Product: gcc
           Version: 4.7.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: pashev.igor@gmail.com


Here is a C++ source code:

# cat -n test.cpp
 1  #include <memory>
 2  using namespace std;
 3   
 4  int main(int argc, char **argv)
 5  {
 6      auto_ptr<int> x;
 7      auto_ptr<int> y;
 8      auto_ptr<int> z;
 9   
10      return 0;
11  }

Command line to compile it with C++11 standard:
g++-4.7 -std=gnu++11 -Wall -Wextra -Wdeprecated-declarations  -pedantic
test.cpp 

Here is the g++ output:
test.cpp: In function ‘int main(int, char**)’:
test.cpp:7:19: warning: ‘auto_ptr’ is deprecated (declared at
/usr/include/c++/4.7/backward/auto_ptr.h:87) [-Wdeprecated-declarations]
test.cpp:8:19: warning: ‘auto_ptr’ is deprecated (declared at
/usr/include/c++/4.7/backward/auto_ptr.h:87) [-Wdeprecated-declarations]
test.cpp: At global scope:
test.cpp:4:5: warning: unused parameter ‘argc’ [-Wunused-parameter]
test.cpp:4:5: warning: unused parameter ‘argv’ [-Wunused-parameter]

A warning about auto_ptr being deprecated has been issued only for y and z. I
expect a warning for x too.

Moreover, if I leave only one auto_ptr (say, x) I will see no deprecation
warning at all.

It is expected to see warning on every auto_ptr instantiation.


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2012-12-01 22:12 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-12-01 20:43 [Bug c++/55557] New: g++ 4.7 does not issue a warning on the first auto_ptr pashev.igor at gmail dot com
2012-12-01 20:46 ` [Bug c++/55557] " pashev.igor at gmail dot com
2012-12-01 22:01 ` [Bug c++/55557] no deprecated warning on the first std::auto_ptr paolo.carlini at oracle dot com
2012-12-01 22:12 ` paolo.carlini at oracle dot com

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