16 Feb
2005
16 Feb
'05
3:44 p.m.
On Tue, 15 Feb 2005 23:11:49 -0500, Jason Hise <chaos@ezequal.com> wrote:
From everything I know, cin, cout, cerr, and clog are simply global variables that live in namespace std. Does this mean that the following code is dangerous?
AFAIK yes. If you have a singleton object that is being destroyed at exit, it is possible that cin/cout/clog etc have been closed before Log::~Log is called.
class Log { public: Log ( ) { std::clog << "Log created\n"; } ~ Log ( ) { std::clog << "Log destroyed\n"; } } global_log;
If so, (and I know this is presumptuous, so strictly hypothetically speaking) could these four standard streams benefit by becoming singletons? Just a thought experiment...
-- Caleb Epstein caleb dot epstein at gmail dot com