Super simplified 2-6 2-7, added 2-8

1 files changed, 21 insertions, 0 deletions

diff --git a/ch2/2-8.c b/ch2/2-8.c
new file mode 100644
index 0000000..9f7adbd
--- /dev/null
+++ b/ch2/2-8.c
@@ -0,0 +1,21 @@
+#include<stdio.h>
+
+/*
+ * Returns the value of the integer x rotated to the right by n bit positions.
+ */
+
+unsigned rightrot(unsigned x, int n) {
+    unsigned mask = ~(~0 >> 1);
+
+    while (n-- > 0)
+        if (x & 1)
+            x = (x >> 1) | mask;
+        else
+            x >>= 1;
+
+    return x;
+}
+
+int main() {
+    printf("%x\n", rightrot(0xaa, 3));
+}