constraint_one_of.hpp

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#ifndef CFGFILE__CONSTRAINT_ONE_OF_HPP__INCLUDED
#define CFGFILE__CONSTRAINT_ONE_OF_HPP__INCLUDED
 
// cfgfile include.
#include "constraint.hpp"
 
// C++ include.
#include <set>
 
 
namespace cfgfile {
 
//
// constraint_one_of_t
//
 
template< class T >
class constraint_one_of_t final
    :   public constraint_t< T >
{
public:
    constraint_one_of_t()
    {
    }
 
    ~constraint_one_of_t()
    {
    }
 
    void
    add_value( const T & value )
    {
        m_list.insert( value );
    }
 
    void
    remove_value( const T & value )
    {
        m_list.erase( value );
    }
 
    bool check( const T & value ) const override
    {
        return ( m_list.find( value ) != m_list.cend() );
    }
 
private:
    std::set< T > m_list;
}; // class constraint_one_of_t
 
} /* namespace cfgfile */
 
#endif // CFGFILE__CONSTRAINT_ONE_OF_HPP__INCLUDED