Use format strings for draw_text and log

1 files changed, 3 insertions, 0 deletions

diff --git a/library.h b/library.h
index 66cbde0..d078861 100644
--- a/library.h
+++ b/library.h
@@ -19,4 +19,7 @@ shared_ptr<Object> instance_create(int x,int y){
 }
 
 void draw_text(int x,int y,const char *s);
+void draw_textf(int x,int y,const char *format,...) __attribute__((format (printf, 3, 4)));
+
 void log(const char *s);
+void logf(const char *format,...) __attribute__((format (printf, 1, 2)));