Last change
on this file since 466 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
1.5 KB
|
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1 | /* wf_acosh.c -- float version of w_acosh.c. |
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2 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
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3 | */ |
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4 | |
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5 | /* |
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6 | * ==================================================== |
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7 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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8 | * |
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9 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
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10 | * Permission to use, copy, modify, and distribute this |
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11 | * software is freely granted, provided that this notice |
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12 | * is preserved. |
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13 | * ==================================================== |
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14 | * |
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15 | */ |
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16 | |
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17 | /* |
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18 | * wrapper acoshf(x) |
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19 | */ |
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20 | |
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21 | #include "fdlibm.h" |
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22 | #include <errno.h> |
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23 | |
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24 | #ifdef __STDC__ |
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25 | float acoshf(float x) /* wrapper acoshf */ |
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26 | #else |
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27 | float acoshf(x) /* wrapper acoshf */ |
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28 | float x; |
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29 | #endif |
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30 | { |
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31 | #ifdef _IEEE_LIBM |
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32 | return __ieee754_acoshf(x); |
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33 | #else |
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34 | float z; |
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35 | struct exception exc; |
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36 | z = __ieee754_acoshf(x); |
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37 | if(_LIB_VERSION == _IEEE_ || isnan(x)) return z; |
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38 | if(x<(float)1.0) { |
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39 | /* acoshf(x<1) */ |
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40 | exc.type = DOMAIN; |
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41 | exc.name = "acoshf"; |
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42 | exc.err = 0; |
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43 | exc.arg1 = exc.arg2 = (double)x; |
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44 | exc.retval = 0.0/0.0; |
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45 | if (_LIB_VERSION == _POSIX_) |
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46 | errno = EDOM; |
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47 | else if (!matherr(&exc)) { |
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48 | errno = EDOM; |
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49 | } |
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50 | if (exc.err != 0) |
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51 | errno = exc.err; |
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52 | return (float)exc.retval; |
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53 | } else |
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54 | return z; |
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55 | #endif |
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56 | } |
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57 | |
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58 | #ifdef _DOUBLE_IS_32BITS |
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59 | |
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60 | #ifdef __STDC__ |
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61 | double acosh(double x) |
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62 | #else |
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63 | double acosh(x) |
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64 | double x; |
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65 | #endif |
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66 | { |
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67 | return (double) acoshf((float) x); |
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68 | } |
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69 | |
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70 | #endif /* defined(_DOUBLE_IS_32BITS) */ |
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