1 files changed, 5 insertions, 5 deletions
diff --git a/gl/lib/randread.c b/gl/lib/randread.c
index 4989d666f..e210c7a8d 100644
--- a/gl/lib/randread.c
+++ b/gl/lib/randread.c
@@ -161,21 +161,21 @@ randread_free_body (struct randread_source *s)
    default handler.  Unless a non-default handler is used, NAME's
    lifetime should be at least that of the returned value.
 
-   Return NULL (setting errno) on failure.  */
+   Return nullptr (setting errno) on failure.  */
 
 struct randread_source *
 randread_new (char const *name, size_t bytes_bound)
 {
   if (bytes_bound == 0)
-    return simple_new (NULL, NULL);
+    return simple_new (nullptr, nullptr);
   else
     {
-      FILE *source = NULL;
+      FILE *source = nullptr;
       struct randread_source *s;
 
       if (name)
         if (! (source = fopen_safer (name, "rb")))
-          return NULL;
+          return nullptr;
 
       s = simple_new (source, name);
 
@@ -190,7 +190,7 @@ randread_new (char const *name, size_t bytes_bound)
               int e = errno;
               randread_free_body (s);
               errno = e;
-              return NULL;
+              return nullptr;
             }
           isaac_seed (&s->buf.isaac.state);
         }