Rev 4872 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* wf_j0.c -- float version of w_j0.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 | * wrapper j0f(float x), y0f(float x) |
||
| 18 | */ |
||
| 19 | |||
| 20 | #include "fdlibm.h" |
||
| 21 | #include |
||
| 22 | |||
| 23 | #ifdef __STDC__ |
||
| 24 | float j0f(float x) /* wrapper j0f */ |
||
| 25 | #else |
||
| 26 | float j0f(x) /* wrapper j0f */ |
||
| 27 | float x; |
||
| 28 | #endif |
||
| 29 | { |
||
| 30 | #ifdef _IEEE_LIBM |
||
| 31 | return __ieee754_j0f(x); |
||
| 32 | #else |
||
| 33 | struct exception exc; |
||
| 34 | float z = __ieee754_j0f(x); |
||
| 35 | if(_LIB_VERSION == _IEEE_ || isnan(x)) return z; |
||
| 36 | if(fabsf(x)>(float)X_TLOSS) { |
||
| 37 | /* j0f(|x|>X_TLOSS) */ |
||
| 38 | exc.type = TLOSS; |
||
| 39 | exc.name = "j0f"; |
||
| 40 | exc.err = 0; |
||
| 41 | exc.arg1 = exc.arg2 = (double)x; |
||
| 42 | exc.retval = 0.0; |
||
| 43 | if (_LIB_VERSION == _POSIX_) |
||
| 44 | errno = ERANGE; |
||
| 45 | else if (!matherr(&exc)) { |
||
| 46 | errno = ERANGE; |
||
| 47 | } |
||
| 48 | if (exc.err != 0) |
||
| 49 | errno = exc.err; |
||
| 50 | return (float)exc.retval; |
||
| 51 | } else |
||
| 52 | return z; |
||
| 53 | #endif |
||
| 54 | } |
||
| 55 | |||
| 56 | #ifdef __STDC__ |
||
| 57 | float y0f(float x) /* wrapper y0f */ |
||
| 58 | #else |
||
| 59 | float y0f(x) /* wrapper y0f */ |
||
| 60 | float x; |
||
| 61 | #endif |
||
| 62 | { |
||
| 63 | #ifdef _IEEE_LIBM |
||
| 64 | return __ieee754_y0f(x); |
||
| 65 | #else |
||
| 66 | float z; |
||
| 67 | struct exception exc; |
||
| 68 | z = __ieee754_y0f(x); |
||
| 69 | if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; |
||
| 70 | if(x <= (float)0.0){ |
||
| 71 | #ifndef HUGE_VAL |
||
| 72 | #define HUGE_VAL inf |
||
| 73 | double inf = 0.0; |
||
| 74 | |||
| 75 | SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ |
||
| 76 | #endif |
||
| 77 | /* y0f(0) = -inf or y0f(x<0) = NaN */ |
||
| 78 | exc.type = DOMAIN; /* should be SING for IEEE y0f(0) */ |
||
| 79 | exc.name = "y0f"; |
||
| 80 | exc.err = 0; |
||
| 81 | exc.arg1 = exc.arg2 = (double)x; |
||
| 82 | if (_LIB_VERSION == _SVID_) |
||
| 83 | exc.retval = -HUGE; |
||
| 84 | else |
||
| 85 | exc.retval = -HUGE_VAL; |
||
| 86 | if (_LIB_VERSION == _POSIX_) |
||
| 87 | errno = EDOM; |
||
| 88 | else if (!matherr(&exc)) { |
||
| 89 | errno = EDOM; |
||
| 90 | } |
||
| 91 | if (exc.err != 0) |
||
| 92 | errno = exc.err; |
||
| 93 | return (float)exc.retval; |
||
| 94 | } |
||
| 95 | if(x>(float)X_TLOSS) { |
||
| 96 | /* y0f(x>X_TLOSS) */ |
||
| 97 | exc.type = TLOSS; |
||
| 98 | exc.name = "y0f"; |
||
| 99 | exc.err = 0; |
||
| 100 | exc.arg1 = exc.arg2 = (double)x; |
||
| 101 | exc.retval = 0.0; |
||
| 102 | if (_LIB_VERSION == _POSIX_) |
||
| 103 | errno = ERANGE; |
||
| 104 | else if (!matherr(&exc)) { |
||
| 105 | errno = ERANGE; |
||
| 106 | } |
||
| 107 | if (exc.err != 0) |
||
| 108 | errno = exc.err; |
||
| 109 | return (float)exc.retval; |
||
| 110 | } else |
||
| 111 | return z; |
||
| 112 | #endif |
||
| 113 | } |
||
| 114 | |||
| 115 | #ifdef _DOUBLE_IS_32BITS |
||
| 116 | |||
| 117 | #ifdef __STDC__ |
||
| 118 | double j0(double x) |
||
| 119 | #else |
||
| 120 | double j0(x) |
||
| 121 | double x; |
||
| 122 | #endif |
||
| 123 | { |
||
| 124 | return (double) j0f((float) x); |
||
| 125 | } |
||
| 126 | |||
| 127 | #ifdef __STDC__ |
||
| 128 | double y0(double x) |
||
| 129 | #else |
||
| 130 | double y0(x) |
||
| 131 | double x; |
||
| 132 | #endif |
||
| 133 | { |
||
| 134 | return (double) y0f((float) x); |
||
| 135 | } |
||
| 136 | |||
| 137 | #endif /* defined(_DOUBLE_IS_32BITS) */ |