unsigned int subtraction...

[hhhsssmmm]

Here is a simple question that im confused on...plz can someone answer it...

Im using C18 compiler....

if i use "unsigned int".... and then subtract two integers in such a way that the one which is subtracted is greater
than the one from which im subtracting...forexample...

result = small - big;

this should give me a result that does not care about the -ve sign....am i correct?....so forexample

result = 2 - 4;

the 'result ' value then contains the variable '2'.....ignoring the -ve sign

is this correct?

please can someone correct me.

thank you
Haseeb

 

[Pommie]

No, if you use unsigned int then 2-4=65534 which is the unsigned value of -2.

If you explain what you are trying to do we may be able to make suggestions.

Mike.