Fix stale filename comment, const qualifier, and int-to-size_t casts

- test_preload.c: @file main.c -> @file test_preload.c
- show_alloc_mem.c, test_preload.c: hex array -> static const
- show_alloc_mem.c, test_preload.c, test_random.c: use size_t
  for sizeof-derived indices instead of casting to int

1 files changed, 3 insertions, 3 deletions

diff --git a/src/show_alloc_mem.c b/src/show_alloc_mem.c
index 6fd5e37..5ffdecc 100644
--- a/src/show_alloc_mem.c
+++ b/src/show_alloc_mem.c
@@ -10,13 +10,13 @@
 static void
 _s_put_ptr (void *ptr)
 {
-  const char hex[] = "0123456789abcdef";
+  static const char hex[] = "0123456789abcdef";
   char buf[20];
   unsigned long value;
-  int i;
+  size_t i;
 
   value = (unsigned long)ptr;
-  i = (int)sizeof (buf);
+  i = sizeof (buf);
   while (value)
     {
       buf[--i] = hex[value % 16];