1 files changed, 10 insertions, 4 deletions
diff --git a/std/stdlib.c b/std/stdlib.c
index d27b36f..7e77385 100644
--- a/std/stdlib.c
+++ b/std/stdlib.c
@@ -1,13 +1,19 @@
 #include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
 
 void wait(long long x) {
     sleep(x);
 }
 
-int slen(char *str) {
-    return strlen(str);
+long long slen(char *str) {
+    return (long long) strlen(str);
 }
 
-char charAt(char *str, int) {
-    return str[int];
+char charAt(char *str, long long x) {
+    return str[x];
+}
+
+long long parse_int(char *str) {
+    return (long long) atoi(str);
 }