Decide if a number is devidable with 2 1

mattias1975 · Oct 28, 2004

Is there any function in c that decides if a number is devidable with 2 or not?

ArkM · Oct 28, 2004

A function? What for?

Code:

int n;

if (n&1) /* if is odd... */
...
if (n&1 == 0) /* if is even... */
... /* or */
if (n%2 == 0) /* for purists only... */
...

Of course, you may define macros if you wish:

Code:

#define iseven(n) ((n)%2==0)
...
if (iseven(n))
...

These examples are for integral types (char, int, long)...