X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fcore%2Fao_sqrt.c;fp=src%2Fcore%2Fao_sqrt.c;h=0000000000000000000000000000000000000000;hp=3a550eaa74e48a4fab3abbe40f1a02cbc18d33f2;hb=24167015705ae831692b95735968b04a876f935e;hpb=bb9fdef607728cc326a82aa632e59724f272e53b

diff --git a/src/core/ao_sqrt.c b/src/core/ao_sqrt.c
deleted file mode 100644
index 3a550eaa..00000000
--- a/src/core/ao_sqrt.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright © 2011 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#ifndef AO_FLIGHT_TEST
-#include "ao.h"
-#endif
-
-/* Adapted from int_sqrt.c in the linux kernel, which is licensed GPLv2 */
-/**
- * int_sqrt - rough approximation to sqrt
- * @x: integer of which to calculate the sqrt
- *
- * A very rough approximation to the sqrt() function.
- */
-
-uint32_t
-ao_sqrt(uint32_t op)
-{
-	uint32_t	res = 0;
-	uint32_t	one = 1UL << (sizeof (one) * 8 - 2);
-
-	while (one > op)
-		one >>= 2;
-
-	while (one != 0) {
-		if (op >= res + one) {
-			op = op - (res + one);
-			res = res +  2 * one;
-		}
-		res /= 2;
-		one /= 4;
-	}
-	return res;
-}