| 0,0 → 1,138 |
|---|
| /* wf_jn.c -- float version of w_jn.c. |
| * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
| */ |
| |
| /* |
| * ==================================================== |
| * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
| * |
| * Developed at SunPro, a Sun Microsystems, Inc. business. |
| * Permission to use, copy, modify, and distribute this |
| * software is freely granted, provided that this notice |
| * is preserved. |
| * ==================================================== |
| */ |
| |
| #include "fdlibm.h" |
| #include <errno.h> |
| |
| |
| #ifdef __STDC__ |
| float jnf(int n, float x) /* wrapper jnf */ |
| #else |
| float jnf(n,x) /* wrapper jnf */ |
| float x; int n; |
| #endif |
| { |
| #ifdef _IEEE_LIBM |
| return __ieee754_jnf(n,x); |
| #else |
| float z; |
| struct exception exc; |
| z = __ieee754_jnf(n,x); |
| if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; |
| if(fabsf(x)>(float)X_TLOSS) { |
| /* jnf(|x|>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = "jnf"; |
| exc.err = 0; |
| exc.arg1 = (double)n; |
| exc.arg2 = (double)x; |
| exc.retval = 0.0; |
| if (_LIB_VERSION == _POSIX_) |
| errno = ERANGE; |
| else if (!matherr(&exc)) { |
| errno = ERANGE; |
| } |
| if (exc.err != 0) |
| errno = exc.err; |
| return exc.retval; |
| } else |
| return z; |
| #endif |
| } |
| |
| #ifdef __STDC__ |
| float ynf(int n, float x) /* wrapper ynf */ |
| #else |
| float ynf(n,x) /* wrapper ynf */ |
| float x; int n; |
| #endif |
| { |
| #ifdef _IEEE_LIBM |
| return __ieee754_ynf(n,x); |
| #else |
| float z; |
| struct exception exc; |
| z = __ieee754_ynf(n,x); |
| if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; |
| if(x <= (float)0.0){ |
| /* ynf(n,0) = -inf or ynf(x<0) = NaN */ |
| #ifndef HUGE_VAL |
| #define HUGE_VAL inf |
| double inf = 0.0; |
| |
| SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ |
| #endif |
| exc.type = DOMAIN; /* should be SING for IEEE */ |
| exc.name = "ynf"; |
| exc.err = 0; |
| exc.arg1 = (double)n; |
| exc.arg2 = (double)x; |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| errno = EDOM; |
| else if (!matherr(&exc)) { |
| errno = EDOM; |
| } |
| if (exc.err != 0) |
| errno = exc.err; |
| return (float)exc.retval; |
| } |
| if(x>(float)X_TLOSS) { |
| /* ynf(x>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = "ynf"; |
| exc.err = 0; |
| exc.arg1 = (double)n; |
| exc.arg2 = (double)x; |
| exc.retval = 0.0; |
| if (_LIB_VERSION == _POSIX_) |
| errno = ERANGE; |
| else if (!matherr(&exc)) { |
| errno = ERANGE; |
| } |
| if (exc.err != 0) |
| errno = exc.err; |
| return (float)exc.retval; |
| } else |
| return z; |
| #endif |
| } |
| |
| #ifdef _DOUBLE_IS_32BITS |
| |
| #ifdef __STDC__ |
| double jn(int n, double x) |
| #else |
| double jn(n,x) |
| double x; int n; |
| #endif |
| { |
| return (double) jnf(n, (float) x); |
| } |
| |
| #ifdef __STDC__ |
| double yn(int n, double x) |
| #else |
| double yn(n,x) |
| double x; int n; |
| #endif |
| { |
| return (double) ynf(n, (float) x); |
| } |
| |
| #endif /* defined(_DOUBLE_IS_32BITS) */ |