Error GCD prob

[vikasdev]

sir ,first of all i want to say that i m a student of b.tech 1st sem.and this question doesn't comprise my projects or assignment.
i m unable to find out the reason of "garbage value returned by function GCD. .
if i m using a little different code, its working.the mere difference is that i hav interchanged the conditions and code inside the if-else statement.
If u trust me then plz help me out.
else its OK..

[gpraghuram]

sir ,first of all i want to say that i m a student of b.tech 1st sem.and this question doesn't comprise my projects or assignment.
i m unable to find out the reason of "garbage value returned by function GCD. .
if i m using a little different code, its working.the mere difference is that i hav interchanged the conditions and code inside the if-else statement.
If u trust me then plz help me out.
else its OK..

If the function returns garbage then it means u are using some un-initialized variable.
or else you are not initializing the return variable properly inside the condition

Raghuram

[vikasdev]

If the function returns garbage then it means u are using some un-initialized variable.
or else you are not initializing the return variable properly inside the condition

Raghuram

sir..,
now i hav changed my code a little bit...previous code was:

if(r!=0)
hcf(r,div);
else

return(div);

where r is remainder finally after successive divisions.
now i hav changed it to:

sir..,
now i hav changed my code a little bit...now code is:

if(r!=0)
hcf(r,div);
else{
if(r==0) //..included afterwards..
return(div);}
now its working fine..
plz tell me why??