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 coshf = __coshf
30
31 #include "libm.h"
32
33 float
34 coshf(float x) {
35 double c;
36 float w;
37 int ix;
38
39 ix = *(int *)&x & ~0x80000000;
40 if (ix >= 0x7f800000) {
41 /* coshf(x) is |x| if x is +-Inf or NaN */
42 return (x * x);
43 }
44 if (ix >= 0x43000000) /* coshf(x) trivially overflows */
45 c = 1.0e100;
46 else
47 c = cosh((double)x);
48 w = (float)c;
49 return (w);
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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 __coshf = coshf
30
31 #include "libm.h"
32
33 float
34 coshf(float x) {
35 double c;
36 float w;
37 int ix;
38
39 ix = *(int *)&x & ~0x80000000;
40 if (ix >= 0x7f800000) {
41 /* coshf(x) is |x| if x is +-Inf or NaN */
42 return (x * x);
43 }
44 if (ix >= 0x43000000) /* coshf(x) trivially overflows */
45 c = 1.0e100;
46 else
47 c = cosh((double)x);
48 w = (float)c;
49 return (w);
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