1 files changed, 5 insertions, 5 deletions

diff --git a/wv_mem.c b/wv_mem.c
index 1f6542b..7bf54d6 100644
--- a/wv_mem.c
+++ b/wv_mem.c
@@ -20,11 +20,11 @@ struct wv_arena *wv_arena_create(size_t n)
 		n = WV_ARENA_MIN_SIZE;
 
 	arena = malloc(sizeof(struct wv_arena));
-	if (arena == NULL)
+	if (!arena)
 		err(1, "malloc arena struct");
 
 	arena->buf = malloc(n);
-	if (arena->buf == NULL)
+	if (!arena->buf)
 		err(1, "malloc arena buffer");
 
 	arena->size = n;
@@ -59,7 +59,7 @@ wv_ref wv_alloc(struct wv_arena *arena, size_t n)
 		}
 
 		new_buf = realloc(arena->buf, new_size);
-		if (new_buf == NULL)
+		if (!new_buf)
 			err(1, "realloc arena failed at %zu bytes", new_size);
 
 		arena->buf  = new_buf;
@@ -73,7 +73,7 @@ wv_ref wv_alloc(struct wv_arena *arena, size_t n)
 
 void wv_arena_reset(struct wv_arena *arena)
 {
-	if (arena == NULL)
+	if (!arena)
 		return;
 
 	memset(arena->buf, 0, arena->offset);
@@ -82,7 +82,7 @@ void wv_arena_reset(struct wv_arena *arena)
 
 void wv_arena_destroy(struct wv_arena *arena)
 {
-	if (arena == NULL)
+	if (!arena)
 		return;
 
 	free(arena->buf);