Template Metavariables

CeePlusPlus metavariables often used by TemplateMetaprogrammingTechniques.

 namespace framework {
 namespace meta
 {
    struct unspecified {};   
    typedef char (&yes)[1];  
    typedef char (&no )[2];

 } // namespace meta
 } // namespace framework

See TemplateMetaprogrammingTechniques, TemplateMetafunctionHasFunction.