update

1 files changed, 5 insertions, 0 deletions

diff --git a/util.h b/util.h
index 7fd874d..4ede5bd 100644
--- a/util.h
+++ b/util.h
@@ -13,6 +13,11 @@
 
 namespace ov4 {
 
+void atomic_print(char *s);
+void atomic_print(int x);
+void reverse(char str[], int length);
+char* itoa(int num, char* str, int base);
+
 const int DECIMAL = 10;
 const int LENGTH = 20;