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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc2/] [newlib/] [libm/] [math/] [w_j1.c] - Rev 520
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/* @(#)w_j1.c 5.1 93/09/24 */ /* * ==================================================== * 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. * ==================================================== */ /* * wrapper of j1,y1 */ #include "fdlibm.h" #include <errno.h> #ifndef _DOUBLE_IS_32BITS #ifdef __STDC__ double j1(double x) /* wrapper j1 */ #else double j1(x) /* wrapper j1 */ double x; #endif { #ifdef _IEEE_LIBM return __ieee754_j1(x); #else double z; struct exception exc; z = __ieee754_j1(x); if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; if(fabs(x)>X_TLOSS) { /* j1(|x|>X_TLOSS) */ exc.type = TLOSS; exc.name = "j1"; exc.err = 0; exc.arg1 = exc.arg2 = 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__ double y1(double x) /* wrapper y1 */ #else double y1(x) /* wrapper y1 */ double x; #endif { #ifdef _IEEE_LIBM return __ieee754_y1(x); #else double z; struct exception exc; z = __ieee754_y1(x); if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; if(x <= 0.0){ #ifndef HUGE_VAL #define HUGE_VAL inf double inf = 0.0; SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ #endif /* y1(0) = -inf or y1(x<0) = NaN */ exc.type = DOMAIN; /* should be SING for IEEE */ exc.name = "y1"; exc.err = 0; exc.arg1 = exc.arg2 = 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 exc.retval; } if(x>X_TLOSS) { /* y1(x>X_TLOSS) */ exc.type = TLOSS; exc.name = "y1"; exc.err = 0; exc.arg1 = exc.arg2 = 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 } #endif /* defined(_DOUBLE_IS_32BITS) */