diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Makefile | 1 | ||||
-rw-r--r-- | lib/gcd.c | 18 |
2 files changed, 19 insertions, 0 deletions
diff --git a/lib/Makefile b/lib/Makefile index 226570a7e6..1684649dd5 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -51,3 +51,4 @@ obj-$(CONFIG_STMP_DEVICE) += stmp-device.o obj-y += wchar.o obj-y += libfile.o obj-y += bitmap.o +obj-y += gcd.o diff --git a/lib/gcd.c b/lib/gcd.c new file mode 100644 index 0000000000..86bdba9112 --- /dev/null +++ b/lib/gcd.c @@ -0,0 +1,18 @@ +#include <linux/gcd.h> + +/* Greatest common divisor */ +unsigned long gcd(unsigned long a, unsigned long b) +{ + unsigned long r; + + if (a < b) + swap(a, b); + + if (!b) + return a; + while ((r = a % b) != 0) { + a = b; + b = r; + } + return b; +} |