Hi,
I just got caught out by the C/Objective-C Implementation of the % (mod)
function in XCode C/Objective-C. I remember having this very same problem years
ago (after I solved it again this time).
It stems from the modulus (%) function not returning a true modulus for
negative numbers - it returns the remainder not the modulus.
I fixed it easily enough by writing my own mod function as so:
-(NSInteger) modulusWithDividend:(NSInteger) theDividend andDivisor:(NSInteger)
theDivisor
{
NSInteger myDividend;
myDividend = theDividend % theDivisor;
if (myDividend < 0)
myDividend = myDividend + theDivisor;
return myDividend;
}
(there is also a C function for it).
——————
My question is, is there an inbuilt function/method I can use instead of wring
my own?
Thanks a lot
Dave
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