I have a fatal error!

[majidkamali1370]

I wrote a class and a operator+ for that.
in operator+ compiler causes a processor fault when i want to create a class-name object and return it.
somthing like this:
Number n = a + b; // a, b are Numbers too.
* : I didn't wrote any operator= for that class.
what's the problem?

[Zhuge]

Please show the code for your operator+(), at least.

[majidkamali1370]

number number::operator+(number right)
{
	if(sgn == right.sgn)          // sgn = sign of Number
	{
		number* b = 0;
		b = ( after >= right.after ? this : &right );
		number* s = 0;
		s = ( this == b ? &right : this );
		int i = b->after - s->after;
		shift(s->num, s->size, i, 'r');
		number sum(b->after + max(b->before, s->before) + 1);
		int k = 0, j = 0;
		for(int x = 0; x < s->size; x++)
		{
			j = b->num[x] - int('0') + s->num[x] - int('0') + k;
			sum.num[x] = (j % 10) + int('0');
			k = j / 10;
		}
		sum.after = b->after;
		shift(s->num, s->size, i, 'l');
		i = sum.size - 1;
		while(sum.num[i] == '0')
			i--;
		sum.before = i - sum.after + 1;
		sum.sgn = sgn;
		if(sum.before > 0)
			sum.exponent = sum.before - 1;
		else	if(sum.before <= 0)
				sum.exponent = ( sum.after > 0 ? i - sum.after : 0 );
		return sum ;
	}
}//End function 'operator+' 

after and before are integers that count number of digits before and after point.

in lines 5 and 7 I can not declare s, b as class objects.
by 'step over' compilation i understood that if i declare s, b, as class objects, in line 30 it can not return a valid value and it causes a processor fault.
of course it is not completed.
what's the problem? Help me :(

[Athar]

in lines 5 and 7 I can not declare s, b as class objects.

What is that supposed to mean?

in line 30 it can not return a valid value

Why?

and it causes a processor fault.

No such thing. What is really happening?


Perhaps you forgot to implement a copy constructor.

[Galik]

Your operator+() doesn't return anything unless the signs are equal.

[majidkamali1370]

I created a copy constructor and instead of pointers to number, objects of number in lines 5 and 7 but if I enter 12 and 13 , it returns 24 !!!
( In a test.cpp program I entered these numbers )
why algorithm is wrong?
( Algorithm is not completed )

[kbw]

You've not answered the questions about the code you've posted an gone on to discuss replacement code that you've not published. The questions are there to help you.