Re: c++/5721: link errors when using typedef struct {...}A;

Re: c++/5721: link errors when using typedef struct {...}A;

[rodrigc]

Synopsis: link errors when using typedef struct {...}A;

State-Changed-From-To: feedback->closed
State-Changed-By: rodrigc
State-Changed-When: Sat Apr 20 13:13:43 2002
State-Changed-Why:
    No feedback

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5721

Re: c++/5721: link errors when using typedef struct {...}A;

[rodrigc]

Synopsis: link errors when using typedef struct {...}A;

State-Changed-From-To: open->feedback
State-Changed-By: rodrigc
State-Changed-When: Fri Feb 22 19:23:23 2002
State-Changed-Why:
    I cannot reproduce your problem with your testcase
    on Linux with gcc 3.0.4.  Did you misconfigure something?

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5721

c++/5721: link errors when using typedef struct {...}A;

[peter_broadhurst]

>Number:         5721
>Category:       c++
>Synopsis:       link errors when using typedef struct {...}A;
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 18 08:16:06 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     peter_broadhurst@ml.com
>Release:        3.0.3
>Organization:
>Environment:
sparc-sun-solaris2.6
i386-redhat-linux (redhat 7.1)
>Description:
The files below give a link time error (undefined symbol A::f()) when compiled and linked.

If the definition of A::f() is moved to the same file where it is used, then the problem disappears.

if "struct A { void f(void); }; " is used, then the problem disappears.

nm indicates that a local-only definition of A::F() is placed in typedeflinkbug2.o.

Works in gcc 2.8.1

==> typedeflinkbug.h <==
typedef struct
{
void f(void);
} A;

==> typedeflinkbug1.cpp <==
#include "typedeflinkbug.h"
int main(int,char**)
{
A a;
a.f();
return 0;
}

==> typedeflinkbug2.cpp <==
#include "typedeflinkbug.h"
void A::f(void) 
{
}
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: