validate that sorter succeeded in sorting the input

1 files changed, 11 insertions, 0 deletions

diff --git a/bench.c b/bench.c
index a51ee99..19f7204 100644
--- a/bench.c
+++ b/bench.c
@@ -37,6 +37,16 @@ static inline unsigned long timediff_ms(struct timespec *start, struct timespec
 	return 1000 * (stop->tv_sec - start->tv_sec) + (stop->tv_nsec - start->tv_nsec) / 1000000;
 }
 
+static inline void assert_sorted(int *buffer, size_t size)
+{
+	if (!size) return;
+	int prev = buffer[0];
+	for (size_t i = 1; i < size; i++) {
+		if (prev > buffer[i]) abort();
+		prev = buffer[i];
+	}
+}
+
 int main()
 {
 	struct timespec start, stop;
@@ -61,6 +71,7 @@ int main()
 				if (clock_gettime(CLOCK_THREAD_CPUTIME_ID, &stop)) abort();
 
 				printf("%*lu %*lu ", CMP_WIDTH, comparisons, MS_WIDTH, timediff_ms(&start, &stop));
+				assert_sorted(buffer, size);
 			}
 			printf(" %*zu\n", SIZE_WIDTH, size);
 		}