+static inline bitarray_t
+bit_array_xmalloc(uns n)
+{
+ return xmalloc(BIT_ARRAY_BYTES(n));
+}
+
+static inline bitarray_t
+bit_array_xmalloc_zero(uns n)
+{
+ return xmalloc_zero(BIT_ARRAY_BYTES(n));
+}
+
+static inline void
+bit_array_zero(bitarray_t a, uns n)
+{
+ bzero(a, BIT_ARRAY_BYTES(n));
+}
+