C++ help needed: singleton.hpp
Posted by
Klaus Spanderen-2 on
Sep 21, 2007; 8:24pm
URL: http://quantlib.414.s1.nabble.com/C-help-needed-singleton-hpp-tp9802.html
Hi
in ql/patterns/singleton.hpp
68 template <class T>
69 T& Singleton<T>::instance() {
70 static std::map<Integer, boost::shared_ptr<T> > instances_;
71 #if defined(QL_ENABLE_SESSIONS)
72 Integer id = sessionId();
73 #else
74 Integer id = 0;
75 #endif
76 boost::shared_ptr<T>& instance = instances_[id];
77 if (!instance)
78 instance = boost::shared_ptr<T>(new T);
79 return *instance;
80 }
IMO this function should be declared as inline function to avoid linker
problem.
69 inline T& Singleton<T>::instance() {
Background: I'd problems with this function when linking QL under Windows to a
project without including the QL project into my project (simply linked
static QL library).
any comment?
cheers
--
Klaus Spanderen
Ludwig Erhard Str. 12
48734 Reken (Germany)
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