Revision: 53768
http://brlcad.svn.sourceforge.net/brlcad/?rev=53768&view=rev
Author: brlcad
Date: 2012-11-19 21:21:44 +0000 (Mon, 19 Nov 2012)
Log Message:
-----------
manually initialize instead of relying on calloc. slightly faster alloc and
probably slower albeit more explicit init.
Modified Paths:
--------------
brlcad/trunk/src/libbu/bitv.c
Modified: brlcad/trunk/src/libbu/bitv.c
===================================================================
--- brlcad/trunk/src/libbu/bitv.c 2012-11-19 21:14:04 UTC (rev 53767)
+++ brlcad/trunk/src/libbu/bitv.c 2012-11-19 21:21:44 UTC (rev 53768)
@@ -81,16 +81,19 @@
bu_bitv_new(unsigned int nbits)
{
struct bu_bitv *bv;
- int bv_bytes;
- int total_bytes;
+ size_t bv_bytes;
+ size_t total_bytes;
bv_bytes = BU_BITS2BYTES(nbits);
total_bytes = sizeof(struct bu_bitv) - 2*sizeof(bitv_t) + bv_bytes;
- /* get zero'd memory, otherwise need to call BU_BITV_ZEROALL */
- bv = (struct bu_bitv *)bu_calloc(1, (size_t)total_bytes, "struct bu_bitv");
- BU_BITV_INIT(bv);
+ /* allocate bigger than struct, bits array extends past the end */
+ bv = (struct bu_bitv *)bu_malloc(total_bytes, "struct bu_bitv");
+
+ /* manually initialize */
+ BU_LIST_INIT_MAGIC(&(bv->l), BU_BITV_MAGIC);
bv->nbits = bv_bytes * 8;
+ BU_BITV_ZEROALL(bv);
return bv;
}
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