Cast argument to avoid arithmetic on void *.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/buf.c b/src/buf.c
index 6d01f3d..185083c 100644
--- a/src/buf.c
+++ b/src/buf.c
@@ -259,7 +259,7 @@ struct Buf *buf_append (struct Buf *buf, const void *ptr, int n_elem)
 		buf->nmax = n_alloc;
 	}
 
-	memcpy (buf->elts + (size_t) buf->nelts * buf->elt_size, ptr,
+	memcpy ((char *) buf->elts + (size_t) buf->nelts * buf->elt_size, ptr,
 		(size_t) n_elem * buf->elt_size);
 	buf->nelts += n_elem;