1 /* @(#)s_exp10.c 5.1 93/09/24 */
2 /* Modified from s_exp2.c by Yaakov Selkowitz 2007. */
3
4 /*
5 * ====================================================
6 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
7 *
8 * Developed at SunPro, a Sun Microsystems, Inc. business.
9 * Permission to use, copy, modify, and distribute this
10 * software is freely granted, provided that this notice
11 * is preserved.
12 * ====================================================
13 */
14
15 /*
16 FUNCTION
17 <<exp10>>, <<exp10f>>---exponential, base 10
18 INDEX
19 exp10
20 INDEX
21 exp10f
22
23 SYNOPSIS
24 #include <math.h>
25 double exp10(double <[x]>);
26 float exp10f(float <[x]>);
27
28 DESCRIPTION
29 <<exp10>> and <<exp10f>> calculate 10 ^ <[x]>, that is,
30 @ifnottex
31 10 raised to the power <[x]>.
32 @end ifnottex
33 @tex
34 $10^x$
35 @end tex
36
37 RETURNS
38 On success, <<exp10>> and <<exp10f>> return the calculated value.
39 If the result underflows, the returned value is <<0>>. If the
40 result overflows, the returned value is <<HUGE_VAL>>. In
41 either case, <<errno>> is set to <<ERANGE>>.
42
43 PORTABILITY
44 <<exp10>> and <<exp10f>> are GNU extensions.
45
46 */
47
48 /*
49 * wrapper exp10(x)
50 */
51
52 #undef exp10
53 #include "fdlibm.h"
54 #include <errno.h>
55 #include <math.h>
56
57 #ifdef _NEED_FLOAT64
58
59 __float64
exp1064(__float64 x)60 exp1064(__float64 x) /* wrapper exp10 */
61 {
62 return _pow64(_F_64(10.0), x);
63 }
64
65 _MATH_ALIAS_d_d(exp10);
66
67 #endif /* _NEED_FLOAT64 */
68
