casts in buf_append() to get rid of warnings

diff --git a/src/buf.c b/src/buf.c
index 185cbd31298c9e0bb4f565aaa26ad4932b14fcc6..1d22a6f9d70d2bf2acef2429acbe64b376947b4a 100644 (file)
--- a/src/buf.c
+++ b/src/buf.c
@@ -241,26 +241,26 @@ struct Buf *buf_append (struct Buf *buf, const void *ptr, int n_elem)
                n_alloc = n_elem + buf->nelts;
 
                /* ...plus some extra */
-               if (((n_alloc * buf->elt_size) % 512) != 0
+               if ((((size_t) n_alloc * buf->elt_size) % 512) != 0
                    && buf->elt_size < 512)
-                       n_alloc +=
-                               (512 -
-                                ((n_alloc * buf->elt_size) % 512)) /
-                               buf->elt_size;
+                       n_alloc += (int)
+                               ((512 -
+                                (((size_t) n_alloc * buf->elt_size) % 512)) /
+                               buf->elt_size);
 
                if (!buf->elts)
                        buf->elts =
-                               allocate_array (n_alloc, buf->elt_size);
+                               allocate_array ((int) n_alloc, buf->elt_size);
                else
                        buf->elts =
-                               reallocate_array (buf->elts, n_alloc,
+                               reallocate_array (buf->elts, (int) n_alloc,
                                                  buf->elt_size);
 
                buf->nmax = n_alloc;
        }
 
-       memcpy ((char *) buf->elts + buf->nelts * buf->elt_size, ptr,
-               n_elem * buf->elt_size);
+       memcpy (buf->elts + (size_t) buf->nelts * buf->elt_size, ptr,
+               (size_t) n_elem * buf->elt_size);
        buf->nelts += n_elem;
 
        return buf;