1 files changed, 6 insertions, 0 deletions
diff --git a/src/utility.c b/src/utility.c
index bcc2500..7287908 100644
--- a/src/utility.c
+++ b/src/utility.c
@@ -22,6 +22,12 @@ pvoid ctl_realloc(pvoid ptr, size_t size){
     return ptr;
 }
 
+/*********** like free(), but will return NULL ************/
+pvoid ctl_free(pvoid ptr){
+    free(ptr);
+    return NULL;
+}
+
 /********* print some message on STDERR and exit() ********/
 void ctl_die(ErrorType e){
     fprintf(stderr, "exit(%d): ", (int)e);