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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* wf_asin.c -- float version of w_asin.c. |
| 2 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
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| 3 | */ |
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| 4 | |||
| 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 | |||
| 17 | /* |
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| 18 | * wrapper asinf(x) |
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| 19 | */ |
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| 20 | |||
| 21 | |||
| 22 | #include "fdlibm.h" |
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| 23 | #include |
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| 24 | |||
| 25 | #ifdef __STDC__ |
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| 26 | float asinf(float x) /* wrapper asinf */ |
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| 27 | #else |
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| 28 | float asinf(x) /* wrapper asinf */ |
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| 29 | float x; |
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| 30 | #endif |
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| 31 | { |
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| 32 | #ifdef _IEEE_LIBM |
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| 33 | return __ieee754_asinf(x); |
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| 34 | #else |
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| 35 | float z; |
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| 36 | struct exception exc; |
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| 37 | z = __ieee754_asinf(x); |
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| 38 | if(_LIB_VERSION == _IEEE_ || isnan(x)) return z; |
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| 39 | if(fabsf(x)>(float)1.0) { |
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| 40 | /* asinf(|x|>1) */ |
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| 41 | exc.type = DOMAIN; |
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| 42 | exc.name = "asinf"; |
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| 43 | exc.err = 0; |
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| 44 | exc.arg1 = exc.arg2 = (double)x; |
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| 45 | exc.retval = nan(""); |
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| 46 | if(_LIB_VERSION == _POSIX_) |
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| 47 | errno = EDOM; |
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| 48 | else if (!matherr(&exc)) { |
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| 49 | errno = EDOM; |
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| 50 | } |
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| 51 | if (exc.err != 0) |
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| 52 | errno = exc.err; |
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| 53 | return (float)exc.retval; |
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| 54 | } else |
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| 55 | return z; |
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| 56 | #endif |
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| 57 | } |
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| 58 | |||
| 59 | #ifdef _DOUBLE_IS_32BITS |
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| 60 | |||
| 61 | #ifdef __STDC__ |
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| 62 | double asin(double x) |
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| 63 | #else |
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| 64 | double asin(x) |
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| 65 | double x; |
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| 66 | #endif |
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| 67 | { |
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| 68 | return (double) asinf((float) x); |
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| 69 | } |
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| 70 | |||
| 71 | #endif /* defined(_DOUBLE_IS_32BITS) */ |