c++/6626: __attribute__ doen not works with function pointers

c++/6626: __attribute__ doen not works with function pointers

[serge]

>Number:         6626
>Category:       c++
>Synopsis:       __attribute__ doen not works with function pointers
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Fri May 10 11:36:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Sergey Grigoriev
>Release:        gcc version 3.1 20020423 (prerelease)
>Organization:
>Environment:
Cygwin
>Description:
__attribute__((__stdcall__)) void test(int *x)
{
  *x = 1;
}

int main(void)
{
  __attribute__((__stdcall__)) void (*local)(int *x);


//this line produces NO error in C++ and C
  local = (void (*)(int*)) test;


//this line produces error in C++ (and works in C)
//error message: invalid conversion from `void (*)(int*)' to `void (*)(int*)'
  local = test;

}
>How-To-Repeat:
see source in description
>Fix:
unknown
>Release-Note:
>Audit-Trail:
>Unformatted:

Re: c++/6626: __attribute__ doen not works with function pointers

[ehrhardt]

Synopsis: __attribute__ doen not works with function pointers

State-Changed-From-To: open->closed
State-Changed-By: cae
State-Changed-When: Tue Dec 10 15:45:54 2002
State-Changed-Why:
    The placement of __attribute__ is wrong. See the message cited by
    Wolfgang for a more detailed explanation.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6626

Re: c++/6626: __attribute__ doen not works with function pointers

[Wolfgang Bangerth]

The following reply was made to PR c++/6626; it has been noted by GNATS.

From: Wolfgang Bangerth <bangerth@ticam.utexas.edu>
To: gcc-bugs@gcc.gnu.org, <gcc-gnats@gcc.gnu.org>
Cc: danny_r_smith_2001@yahoo.co.nz
Subject: Re: c++/6626: __attribute__ doen not works with function pointers
Date: Tue, 22 Oct 2002 10:29:10 -0500 (CDT)

 Given this message
   http://gcc.gnu.org/ml/gcc-bugs/2002-10/msg00809.html
 shouldn't this report be closed as a user/syntax error?
 
 Although I must agree that the error message
   invalid conversion from `void (*)(int*)' to `void (*)(int*)'
 is not exactly enlightening... (The two function pointers have different 
 attributes, which are not represented in the error message.)
 
 Regards
   Wolfgang
 
 -------------------------------------------------------------------------
 Wolfgang Bangerth              email:           bangerth@ticam.utexas.edu
                                www: http://www.ticam.utexas.edu/~bangerth