Various small changes

- add/fix const keyword.
- add comments.
- rename variables.

1 files changed, 1 insertions, 1 deletions

diff --git a/xmalloc.h b/xmalloc.h
index d724da1..759568a 100644
--- a/xmalloc.h
+++ b/xmalloc.h
@@ -11,7 +11,7 @@ void *
 xmalloc(size_t size);
 
 void *
-xcalloc(size_t num, size_t size);
+xcalloc(size_t n, size_t size);
 
 void *
 xrealloc(void * ptr, size_t size);