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-rw-r--r--05/musl-0.6.0/src/misc/ffs.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/05/musl-0.6.0/src/misc/ffs.c b/05/musl-0.6.0/src/misc/ffs.c
new file mode 100644
index 0000000..2f7cb32
--- /dev/null
+++ b/05/musl-0.6.0/src/misc/ffs.c
@@ -0,0 +1,9 @@
+#include <strings.h>
+
+int ffs(int i)
+{
+ unsigned int j = i;
+ for (i=1; j && !(j&1); j>>=1, i++);
+ if (j) return i;
+ return 0;
+}