**fig1_6.txt**

/* 1*/	inline void String::Get_Buffer( const unsigned int Max_Length )
/* 2*/	{
/* 3*/	    Buffer_Len = Max_Length + 1;
/* 4*/	    Buffer = new char [ Buffer_Len ];
/* 5*/	    if( !Buffer )
/* 6*/	        Error( "Out of space" );
/* 7*/	}	

/* 8*/	String::String( const char * Value )
/* 9*/	{
/*10*/	    if( Value == NULL )	// Use "" if Value is NULL.
/*11*/	    {
/*12*/	        Get_Buffer( 0 );
/*13*/	        Buffer[ 0 ] = '\0';
/*14*/	    }
/*15*/	    else
/*16*/	    {
/*17*/	        Get_Buffer( strlen( Value ) );
/*18*/	        for( int i = 0; i < Buffer_Len; i++ )
/*19*/	            Buffer[ i ] = Value[ i ];
/*20*/	    }
/*21*/	}

/*22*/	String::String( const String & Value )
/*23*/	{
/*24*/	    Get_Buffer( strlen( Value.Buffer ) );
/*25*/	    for( int i = 0; i < Buffer_Len; i++ )
/*26*/	        Buffer[ i ] = Value.Buffer[ i ];
/*27*/	}

/*28*/	const String & String::operator = ( const String & Value )
/*29*/	{
/*30*/	    const int Len = strlen( Value.Buffer );

/*31*/	    if( this != &Value )	// Don't copy to yourself.
/*32*/	    {
/*33*/	        if( Len >= Buffer_Len )
/*34*/	        {
/*35*/	            delete [ ] Buffer;
/*36*/	            Get_Buffer( Len );
/*37*/	        }
/*38*/	    
/*39*/	        for( int i = 0; i < Len; i++ )
/*40*/	            Buffer[ i ] = Value.Buffer[ i ];
/*41*/	        Buffer[ i ] = '\0';
/*42*/	    }

/*43*/	    return *this;
/*44*/	}

/*45*/	inline int operator == ( const String & Lhs, const String & Rhs )
/*46*/	{
/*47*/	    return strcmp( Lhs.Buffer, Rhs.Buffer ) == 0;
/*48*/	}

/*49*/	inline int operator != ( const String & Lhs, const String & Rhs )
/*50*/	{
/*51*/	    return strcmp( Lhs.Buffer, Rhs.Buffer ) != 0;
/*52*/	}

/*53*/	inline int operator < ( const String & Lhs, const String & Rhs )
/*54*/	{
/*55*/	    return strcmp( Lhs.Buffer, Rhs.Buffer ) < 0;
/*56*/	}

/*57*/	inline int operator > ( const String & Lhs, const String & Rhs )
/*58*/	{
/*59*/	    return strcmp( Lhs.Buffer, Rhs.Buffer ) > 0;
/*60*/	}

/*61*/	char & String::operator [ ] ( unsigned int Index ) const
/*62*/	{
/*63*/	    if( Index > strlen( Buffer ) )
/*64*/	        cerr << "Warning: out of bounds string access" << endl;
/*65*/	    return Buffer[ Index ];
/*66*/	}