Add instrumentation

Track the number of comparisons, swaps, and rotations performed in each
part of the sorting algorithm.

1 files changed, 3 insertions, 0 deletions

diff --git a/rotate.c b/rotate.c
index 5eb7696..1815812 100644
--- a/rotate.c
+++ b/rotate.c
@@ -1,11 +1,14 @@
 #include <stddef.h>
 
 #include "common.h"
+#include "counts.h"
 
 /* rotates left */
 void rotate(char *base, size_t size, size_t shift)
 {
 	int dir = 1;
+
+	counts[CURRENT].rotate++;
 	while (shift) {
 		while (2*shift <= size) {
 			swap(base, base + dir*shift, shift);