//
//  NBO.cpp
//

#include <cassert>
#include <string>	// for NULL

#include "NBO.h"



NBO :: NBO ()
{
	ma_bytes[0] = 0;
	ma_bytes[1] = 0;
	ma_bytes[2] = 0;
	ma_bytes[3] = 0;
}

NBO :: NBO (int value)
{
	setInt(value);
}

NBO :: NBO (unsigned int value)
{
	setInt(value);
}

NBO :: NBO (char b1, char b2, char b3, char b4)
{
	ma_bytes[0] = b1;
	ma_bytes[1] = b2;
	ma_bytes[2] = b3;
	ma_bytes[3] = b4;
}

NBO :: NBO (const char* a_bytes)
{
	assert(a_bytes != NULL);

	ma_bytes[0] = a_bytes[0];
	ma_bytes[1] = a_bytes[1];
	ma_bytes[2] = a_bytes[2];
	ma_bytes[3] = a_bytes[3];
}

NBO :: NBO (const NBO& original)
{
	ma_bytes[0] = original.ma_bytes[0];
	ma_bytes[1] = original.ma_bytes[1];
	ma_bytes[2] = original.ma_bytes[2];
	ma_bytes[3] = original.ma_bytes[3];
}

NBO& NBO :: operator= (int value)
{
	setInt(value);

	return *this;
}

NBO& NBO :: operator= (unsigned int value)
{
	setInt(value);

	return *this;
}

NBO& NBO :: operator= (const char* a_bytes)
{
	assert(a_bytes != NULL);

	ma_bytes[0] = a_bytes[0];
	ma_bytes[1] = a_bytes[1];
	ma_bytes[2] = a_bytes[2];
	ma_bytes[3] = a_bytes[3];

	return *this;
}

NBO& NBO :: operator= (const NBO& original)
{
	if(&original != this)
	{
		ma_bytes[0] = original.ma_bytes[0];
		ma_bytes[1] = original.ma_bytes[1];
		ma_bytes[2] = original.ma_bytes[2];
		ma_bytes[3] = original.ma_bytes[3];
	}
	return *this;
}

NBO :: ~NBO ()
{}



NBO :: operator unsigned int () const
{
	return getInt();
}

char NBO :: operator[] (unsigned int index) const
{
	assert(index < 4);

	return ma_bytes[index];
}

char& NBO :: operator[] (unsigned int index)
{
	assert(index < 4);

	return ma_bytes[index];
}

unsigned int NBO :: getInt () const
{
	return (((unsigned int)((unsigned char)(ma_bytes[0]))) << 24) |
	       (((unsigned int)((unsigned char)(ma_bytes[1]))) << 16) |
	       (((unsigned int)((unsigned char)(ma_bytes[2]))) <<  8) |
	        ((unsigned int)((unsigned char)(ma_bytes[3])));
}

void NBO :: setInt (unsigned int value)
{
	ma_bytes[0] = (char)((value >> 24) & 0xFF);
	ma_bytes[1] = (char)((value >> 16) & 0xFF);
	ma_bytes[2] = (char)((value >>  8) & 0xFF);
	ma_bytes[3] = (char)( value        & 0xFF);
}

char NBO :: getByte (unsigned int index) const
{
	assert(index < 4);

	return ma_bytes[index];
}

void NBO :: setByte (unsigned int index, char value)
{
	assert(index < 4);

	ma_bytes[index] = value;
}

void NBO :: setBytes (char b1, char b2, char b3, char b4)
{
	ma_bytes[0] = b1;
	ma_bytes[1] = b2;
	ma_bytes[2] = b3;
	ma_bytes[3] = b4;
}

void NBO :: setArray (const char* a_bytes)
{
	assert(a_bytes != NULL);

	ma_bytes[0] = a_bytes[0];
	ma_bytes[1] = a_bytes[1];
	ma_bytes[2] = a_bytes[2];
	ma_bytes[3] = a_bytes[3];
}