diff options
Diffstat (limited to 'lib/gcd.c')
-rw-r--r-- | lib/gcd.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/gcd.c b/lib/gcd.c new file mode 100644 index 00000000..f879033d --- /dev/null +++ b/lib/gcd.c @@ -0,0 +1,18 @@ +#include <linux/kernel.h> +#include <linux/gcd.h> +#include <linux/module.h> + +/* Greatest common divisor */ +unsigned long gcd(unsigned long a, unsigned long b) +{ + unsigned long r; + + if (a < b) + swap(a, b); + while ((r = a % b) != 0) { + a = b; + b = r; + } + return b; +} +EXPORT_SYMBOL_GPL(gcd); |