Added bit_array_assign(), replaced BIT_ARRAY_ALLOC by functions.

diff --git a/lib/bitarray.h b/lib/bitarray.h
index 9e1de8d49b5117cf2ed46e1f084730d384f7f906..04ac582d04a3ecea43938c351081159383facf9c 100644 (file)
--- a/lib/bitarray.h
+++ b/lib/bitarray.h
@@ -1,7 +1,7 @@
 /*
  *     UCW Library -- Bit Array Operations
  *
- *     (c) 2003--2004 Martin Mares <mj@ucw.cz>
+ *     (c) 2003--2006 Martin Mares <mj@ucw.cz>
  *
  *     This software may be freely distributed and used according to the terms
  *     of the GNU Lesser General Public License.
@@ -13,7 +13,18 @@ typedef u32 *bitarray_t;
 #define BIT_ARRAY_WORDS(n) (((n)+31)/32)
 #define BIT_ARRAY_BYTES(n) (4*BIT_ARRAY_WORDS(n))
 #define BIT_ARRAY(name,size) u32 name[BIT_ARRAY_WORDS(size)]
-#define BIT_ARRAY_ALLOC(size) ((bitarray_t) xmalloc(BIT_ARRAY_BYTES(size)))
+
+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)
@@ -39,6 +50,15 @@ bit_array_clear(bitarray_t a, uns i)
   a[i/32] &= ~(1 << (i%32));
 }
 
+static inline void
+bit_array_assign(bitarray_t a, uns i, uns x)
+{
+  if (x)
+    bit_array_set(a, i);
+  else
+    bit_array_clear(a, i);
+}
+
 static inline uns
 bit_array_isset(bitarray_t a, uns i)
 {