libstdc++/10132: filebuf destructor throws exceptions
peturr02@ru.is
peturr02@ru.is
Tue Mar 18 14:06:00 GMT 2003
>Number: 10132
>Category: libstdc++
>Synopsis: filebuf destructor throws exceptions
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue Mar 18 12:16:01 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: peturr02@ru.is
>Release: gcc-3.2.2
>Organization:
>Environment:
Red Hat Linux 8.0
>Description:
The destructor of basic_filebuf calls basic_filebuf::close() without handling exceptions thrown by that function (close() calls use_facet and codecvt::out(), both of which may throw).
>How-To-Repeat:
See attachment.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="dtorbug.cc"
Content-Disposition: inline; filename="dtorbug.cc"
#include <fstream>
#include <locale>
#include <cwchar>
#undef NDEBUG
#include <cassert>
class MyEx
{
};
class Cvt : public std::codecvt<wchar_t, char, std::mbstate_t>
{
protected:
virtual std::codecvt_base::result
do_out(std::mbstate_t&, const wchar_t*, const wchar_t*,
const wchar_t*&, char*, char*, char*&) const
{
throw MyEx();
}
};
int main()
{
using namespace std;
locale loc;
loc = locale(loc, new Cvt);
wfilebuf* fb = new wfilebuf;
fb->pubimbue(loc);
fb->open("tmp", ios_base::out);
fb->sputc(L'a');
try
{
delete fb;
}
catch (...)
{
assert(false);
}
return 0;
}
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