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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [newlib/] [libm/] [math/] [wf_j0.c] - Rev 855
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/* wf_j0.c -- float version of w_j0.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. * ==================================================== */ /* * wrapper j0f(float x), y0f(float x) */ #include "fdlibm.h" #include <errno.h> #ifdef __STDC__ float j0f(float x) /* wrapper j0f */ #else float j0f(x) /* wrapper j0f */ float x; #endif { #ifdef _IEEE_LIBM return __ieee754_j0f(x); #else struct exception exc; float z = __ieee754_j0f(x); if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z; if(fabsf(x)>(float)X_TLOSS) { /* j0f(|x|>X_TLOSS) */ exc.type = TLOSS; exc.name = "j0f"; exc.err = 0; exc.arg1 = 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 __STDC__ float y0f(float x) /* wrapper y0f */ #else float y0f(x) /* wrapper y0f */ float x; #endif { #ifdef _IEEE_LIBM return __ieee754_y0f(x); #else float z; struct exception exc; z = __ieee754_y0f(x); if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z; if(x <= (float)0.0){ #ifndef HUGE_VAL #define HUGE_VAL inf double inf = 0.0; SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ #endif /* y0f(0) = -inf or y0f(x<0) = NaN */ exc.type = DOMAIN; /* should be SING for IEEE y0f(0) */ exc.name = "y0f"; exc.err = 0; exc.arg1 = 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) { /* y0f(x>X_TLOSS) */ exc.type = TLOSS; exc.name = "y0f"; exc.err = 0; exc.arg1 = 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 j0(double x) #else double j0(x) double x; #endif { return (double) j0f((float) x); } #ifdef __STDC__ double y0(double x) #else double y0(x) double x; #endif { return (double) y0f((float) x); } #endif /* defined(_DOUBLE_IS_32BITS) */
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