constraint.hpp

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#ifndef CFGFILE__CONSTRAINT_HPP__INCLUDED
#define CFGFILE__CONSTRAINT_HPP__INCLUDED
 
 
namespace cfgfile {
 
//
// constraint_t
//
 
template< class T >
class constraint_t {
public:
    constraint_t() {}
 
    virtual ~constraint_t() {}
 
    virtual bool
    check( const T & value ) const = 0;
}; // class constraint_t
 
} /* namespace cfgfile */
 
#endif // CFGFILE__CONSTRAINT_HPP__INCLUDED