I'm having trouble understanding what's going on here. Is this a bug in G++ or
possible is the C++ standard a little bit funny, or is it STL?
Perhaps, the result of this code undefined due to the temporary?
I would have expected as output
Hello
Hello
The rationale for this example is the following: I'd like to write a log class
that extends an ostream and I want to use roughly like this:
LogEntry(INFO) << "MyMessage" << LogEntry::commit;
#include <sstream>
#include <iostream>
int main()
{
::std::ostringstream ss;
ss << "Hello" ;
::std::cerr << ss.str() << ::std::endl;
::std::string s = static_cast< ::std::ostringstream&>(::std::ostringstream()
<< "Hello2").str();
::std::cerr << s << ::std::endl;
return 0;
}
--
Summary: funny ::std::ostream behavior when using a temporary
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: Raimund dot Merkert at baesystems dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26040
