c++ - Static member initialization in a class template -


i'd this:

template <typename t> struct s {     ...     static double something_relevant = 1.5; };

but can't since something_relevant not of integral type. doesn't depend on t, existing code depends on being static member of s.

since s template, cannot put definition inside compiled file. how solve problem ?

just define in header: 

template <typename t> struct s {     static double something_relevant; };  template <typename t> double s<t>::something_relevant = 1.5;

since part of template, templates compiler make sure it's defined once.


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