9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 */
24 /*
25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
27 */
28
29 #pragma weak nextafter = __nextafter
30 #pragma weak _nextafter = __nextafter
31
32 #include "libm.h"
33 #include <float.h> /* DBL_MIN */
34
35 double
36 nextafter(double x, double y) {
37 int hx, hy, k;
38 double ans;
39 unsigned lx;
40 volatile double dummy;
41
42 hx = ((int *)&x)[HIWORD];
43 lx = ((int *)&x)[LOWORD];
44 hy = ((int *)&y)[HIWORD];
45 k = (hx & ~0x80000000) | lx;
46
47 if (x == y)
48 return (y); /* C99 requirement */
49 if (x != x || y != y)
50 return (x * y);
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9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 */
24 /*
25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
27 */
28
29 #pragma weak __nextafter = nextafter
30 #pragma weak _nextafter = nextafter
31
32 #include "libm.h"
33 #include <float.h> /* DBL_MIN */
34
35 double
36 nextafter(double x, double y) {
37 int hx, hy, k;
38 double ans;
39 unsigned lx;
40 volatile double dummy;
41
42 hx = ((int *)&x)[HIWORD];
43 lx = ((int *)&x)[LOWORD];
44 hy = ((int *)&y)[HIWORD];
45 k = (hx & ~0x80000000) | lx;
46
47 if (x == y)
48 return (y); /* C99 requirement */
49 if (x != x || y != y)
50 return (x * y);
|