c++/6287: throwing exceptions across DLL boundaries (cygwin/MinGW)

[david.abrahams@rcn.com]

>Number:         6287
>Category:       c++
>Synopsis:       throwing exceptions across DLL boundaries (cygwin/MinGW)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Apr 13 08:46:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     david.abrahams@rcn.com
>Release:        2.95.x -> 3.0.4
>Organization:
>Environment:
cygwin or mingw
>Description:
compile foo.cpp into an executable linked with bar.cpp as a shared lib, then run to produce a crash
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="foo.cpp"
Content-Disposition: inline; filename="foo.cpp"

struct foo {};
extern
#ifdef _WIN32
__declspec(dllimport)
#endif 
    void bar();

int main()
{
    try { bar(); } catch(foo const&) {}
}