include/shark/Core/Counter.h

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//===========================================================================
//===========================================================================
#ifndef SHARK_CORE_COUNTER_H
#define SHARK_CORE_COUNTER_H

namespace shark {

    class Counter {
    public:

        Counter() : m_counter(0) {  }

        Counter( const Counter & rhs ) : m_counter(rhs.m_counter) {}


        Counter & operator=( const Counter & rhs ) {
            m_counter = rhs.m_counter;
            return( *this );
        }

        template<typename Scalar>
        bool operator==( const Scalar & rhs ) const {
            return( m_counter == static_cast<unsigned int>( rhs ) );
        }

        template<typename Scalar>
        bool operator<( const Scalar & rhs ) const {
            return( m_counter < rhs );
        }

        const Counter & operator++() const {
            m_counter++;
            return( *this );
        }

        Counter operator++(int) const {
            Counter c( *this );
            m_counter++;
            return( c );
        }

        void operator--() const {
            m_counter--;
        }

        Counter & operator++() {
            m_counter++;
            return( *this );
        }

        Counter operator++(int) {
            Counter c( *this );
            m_counter++;
            return( c );
        }

        void operator--() {
            m_counter--;
        }

        void reset() const {
            m_counter = 0;
        }

        operator unsigned int() const {
            return( m_counter );
        }

    protected:
        mutable unsigned int m_counter; 


    };

    //template<typename Stream>
    //Stream & operator<<( Stream & s, const Counter & c ) {
    //  s << static_cast<unsigned int>( c );
    //  return( s );
    //}

}

#endif // SHARK_CORE_COUNTER_H