add some documentation

1 files changed, 6 insertions, 2 deletions

diff --git a/main.c b/main.c
index 9fd2eee..7ffdccd 100644
--- a/main.c
+++ b/main.c
@@ -33,8 +33,12 @@ int main(int argc, char **argv) {
     version();
   }
 
-  FILE *fp = fopen(argv[1], "rb");
-  ssize_t bytes_read = getdelim(&INBUF, &len, '\0', fp);
+  FILE *FP = fopen(argv[1], "rb");
+  ssize_t bytes_read = getdelim(&INBUF, &len, '\0', FP);
+  if (FP != NULL) {
+    fflush(FP);
+    fclose(FP);
+  }
 
   PARSER = init_parser(INBUF);
   STACK = init_array(10);