Technical Functions...!@#$

Is there any header, lets say Math.h for example, that you could use to retreive the absolute value of a number. Technicaly, if I had the string:
75656
and I needed to subtract:

45562
and get:

75656
- 45562
---------------
30114
and so on. I would also need to compensate for other problems like:
34475
-52434
and return:

22041
I am pretty sure that some one could help me, the main goal is to get the positive value from subtraction of two integers. Or maybe I should use a strFormat and use a switch case method. Oh well, I've confused my self enough for one post. If this makes any sense whatsoever, please tell me so!

#include math.h

abs();

Hmmmm.... Please elaborate.

int abs( int ) from math.h returns the absolute value of the given number.

int i = abs( -8152 );

i is 8152

However, I need to return a value like such:

Code:

---

GetDlgItemValue(IDC_EDIT1, nInt);
GetDlgItemValue(IDC_EDIT2, nInt2);
int i = abs(nInt);
int a= abs(nInt2);

---

After this I would need to subtract the two but come out with the difference between each induvidual digit, assuming the two values are the same length. I think that i am now leaning toward more of a strFormat approach. What do you think?

..or you could do -

int whatever = abs(nInt - nInt2);