binaryNumber.cpp

/* 
 * File:   binaryNumber.cpp
 * Author: d-savant
 * 
 * Created on 20 September 2013, 9:57 PM
 * The MIT License (MIT)

Copyright (c) 2013 korn101

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "binaryNumber.h"
#include <iostream>
#include <cstdlib>
#include <cmath>
#include <stdexcept>

using namespace std;

binaryNumber::binaryNumber() 
{
    //default constructor for binary number. Sets all bits to 0
    
    for (int i = 0; i < numBits; i++)
        bits[i] = 0;
    
}

binaryNumber::binaryNumber(int inp)
{
    //takes an int as input, checks if in range and allocates it accordingly.
    //default constructor for binary number.
    for (int i = 0; i < numBits; i++)
        bits[i] = 0;

    if (inp <= pow(2, numBits) - 1) //check if the value is actually representable with the given number of bits allowed.
    {
        int num = inp; // temp location.
        //convert input to binary:
        for (int i = 0; i < numBits; i++)
        {   
            if (num % 2 != 0)
                bits[(numBits-1)-i] = 1;
            num = num / 2;
            
        }
        
    }
    else
    {
        throw runtime_error("Binary number allocation fell out of range.");
    }
    
}

binaryNumber::binaryNumber(const binaryNumber& other) 
{

    for (int i = 0; i < other.numBits; i++)
        bits[i] = other.bits[i];    
    
}

binaryNumber::binaryNumber(string gene)
{
    
    if (gene.length() == numBits)
    {
        for (int i = 0; i < gene.length(); i++)
        {
            if (gene[i] == '0')
                bits[i] = 0;
            else if (gene[i] == '1')
                bits[i] = 1;
            else
                throw runtime_error("Specified gene string contains non-binary characters.");
        }
        
    }
    else
    {
        throw runtime_error("Specified gene string does not match configured gene bit length.");
    }
    
    
}


binaryNumber::~binaryNumber() 
{
}

void binaryNumber::print() const
{
    for (int i = 0; i < numBits; i++)
        cout << bits[i];
}

bool binaryNumber::operator[](int index) const
{
    return (bits[index]);
}

bool & binaryNumber::operator[](int index)
{
    return (bits[index]);
}

binaryNumber & binaryNumber::operator=(const binaryNumber& other)
{
    for (int i = 0; i < other.numBits; i++)
        bits[i] = other.bits[i];

    return *this;
}