extract_bits.hpp

#ifndef PASTELSYS_EXTRACT_BITS_HPP
#define PASTELSYS_EXTRACT_BITS_HPP

#include "pastel/sys/bit/extract_bits.h"

namespace Pastel
{

    template <integer FromBit, integer Bits, typename Integer>
    Integer extractBits(const Integer& number)
    {
        PASTEL_STATIC_ASSERT(FromBit >= 0);
        PASTEL_STATIC_ASSERT(Bits > 0);

        return (number >> FromBit) & ((1 << Bits) - 1);
    }

    template <typename Integer>
    Integer extractBits(const Integer& number, 
        integer fromBit, integer bits)
    {
        PENSURE_OP(fromBit, >=, 0);
        PENSURE_OP(bits, >, 0);

        return (number >> fromBit) & ((1 << bits) - 1);
    }

}

#endif