Rev 1618 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | /* w_acoshf.c -- float version of w_acosh.c. |
| 2 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
||
| 3 | */ |
||
| 4 | |||
| 5 | /* |
||
| 6 | * ==================================================== |
||
| 7 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
||
| 8 | * |
||
| 9 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
||
| 10 | * Permission to use, copy, modify, and distribute this |
||
| 11 | * software is freely granted, provided that this notice |
||
| 12 | * is preserved. |
||
| 13 | * ==================================================== |
||
| 14 | * |
||
| 15 | */ |
||
| 16 | |||
| 17 | #ifndef lint |
||
| 18 | static char rcsid[] = "$\Id: w_acoshf.c,v 1.2 1995/05/30 05:50:40 rgrimes Exp $"; |
||
| 19 | #endif |
||
| 20 | |||
| 21 | /* |
||
| 22 | * wrapper acoshf(x) |
||
| 23 | */ |
||
| 24 | |||
| 25 | #include "math.h" |
||
| 26 | #include "math_private.h" |
||
| 27 | |||
| 28 | #ifdef __STDC__ |
||
| 29 | float acoshf(float x) /* wrapper acoshf */ |
||
| 30 | #else |
||
| 31 | float acoshf(x) /* wrapper acoshf */ |
||
| 32 | float x; |
||
| 33 | #endif |
||
| 34 | { |
||
| 35 | #ifdef _IEEE_LIBM |
||
| 36 | return __ieee754_acoshf(x); |
||
| 37 | #else |
||
| 38 | float z; |
||
| 39 | z = __ieee754_acoshf(x); |
||
| 40 | if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z; |
||
| 41 | if(x<(float)1.0) { |
||
| 42 | /* acosh(x<1) */ |
||
| 43 | return (float)__kernel_standard((double)x,(double)x,129); |
||
| 44 | } else |
||
| 45 | return z; |
||
| 46 | #endif |
||
| 47 | } |