| /* @(#)k_standard.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. |
| * ==================================================== |
| */ |
| |
| #if defined(LIBM_SCCS) && !defined(lint) |
| static char rcsid[] = "$NetBSD: k_standard.c,v 1.6 1995/05/10 20:46:35 jtc Exp $"; |
| #endif |
| |
| #include <math.h> |
| #include <math_private.h> |
| #include <math-svid-compat.h> |
| #include <errno.h> |
| |
| #include <assert.h> |
| |
| #if LIBM_SVID_COMPAT |
| |
| # ifndef _USE_WRITE |
| # include <stdio.h> /* fputs(), stderr */ |
| # define WRITE2(u,v) fputs(u, stderr) |
| # else /* !defined(_USE_WRITE) */ |
| # include <unistd.h> /* write */ |
| # define WRITE2(u,v) write(2, u, v) |
| # undef fflush |
| # endif /* !defined(_USE_WRITE) */ |
| |
| /* XXX gcc versions until now don't delay the 0.0/0.0 division until |
| runtime but produce NaN at compile time. This is wrong since the |
| exceptions are not set correctly. */ |
| # if 0 |
| static const double zero = 0.0; /* used as const */ |
| # else |
| volatile static double zero = 0.0; /* used as const */ |
| # endif |
| |
| /* |
| * Standard conformance (non-IEEE) on exception cases. |
| * Mapping: |
| * 1 -- acos(|x|>1) |
| * 2 -- asin(|x|>1) |
| * 3 -- atan2(+-0,+-0) |
| * 4 -- hypot overflow |
| * 5 -- cosh overflow |
| * 6 -- exp overflow |
| * 7 -- exp underflow |
| * 8 -- y0(0) |
| * 9 -- y0(-ve) |
| * 10-- y1(0) |
| * 11-- y1(-ve) |
| * 12-- yn(0) |
| * 13-- yn(-ve) |
| * 14-- lgamma(finite) overflow |
| * 15-- lgamma(-integer) |
| * 16-- log(0) |
| * 17-- log(x<0) |
| * 18-- log10(0) |
| * 19-- log10(x<0) |
| * 21-- pow(x,y) overflow |
| * 22-- pow(x,y) underflow |
| * 23-- pow(0,negative) |
| * 24-- pow(neg,non-integral) |
| * 25-- sinh(finite) overflow |
| * 26-- sqrt(negative) |
| * 27-- fmod(x,0) |
| * 28-- remainder(x,0) |
| * 29-- acosh(x<1) |
| * 30-- atanh(|x|>1) |
| * 31-- atanh(|x|=1) |
| * 32-- scalb overflow |
| * 33-- scalb underflow |
| * 34-- j0(|x|>X_TLOSS) |
| * 35-- y0(x>X_TLOSS) |
| * 36-- j1(|x|>X_TLOSS) |
| * 37-- y1(x>X_TLOSS) |
| * 38-- jn(|x|>X_TLOSS, n) |
| * 39-- yn(x>X_TLOSS, n) |
| * 40-- tgamma(finite) overflow |
| * 41-- tgamma(-integer) |
| * 43-- +0**neg |
| * 44-- exp2 overflow |
| * 45-- exp2 underflow |
| * 46-- exp10 overflow |
| * 47-- exp10 underflow |
| * 48-- log2(0) |
| * 49-- log2(x<0) |
| * 50-- tgamma(+-0) |
| */ |
| |
| |
| double |
| __kernel_standard(double x, double y, int type) |
| { |
| struct exception exc; |
| # ifndef HUGE_VAL /* this is the only routine that uses HUGE_VAL */ |
| # define HUGE_VAL inf |
| double inf = 0.0; |
| |
| SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ |
| # endif |
| |
| /* The SVID struct exception uses a field "char *name;". */ |
| # define CSTR(func) ((char *) (type < 100 \ |
| ? func \ |
| : (type < 200 ? func "f" : func "l"))) |
| |
| # ifdef _USE_WRITE |
| (void) fflush(stdout); |
| # endif |
| exc.arg1 = x; |
| exc.arg2 = y; |
| switch(type) { |
| case 1: |
| case 101: |
| case 201: |
| /* acos(|x|>1) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("acos"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if(_LIB_VERSION == _SVID_) { |
| (void) WRITE2("acos: DOMAIN error\n", 19); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 2: |
| case 102: |
| case 202: |
| /* asin(|x|>1) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("asin"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = NAN; |
| if(_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if(_LIB_VERSION == _SVID_) { |
| (void) WRITE2("asin: DOMAIN error\n", 19); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 3: |
| case 103: |
| case 203: |
| /* atan2(+-0,+-0) */ |
| exc.arg1 = y; |
| exc.arg2 = x; |
| exc.type = DOMAIN; |
| exc.name = CSTR ("atan2"); |
| assert (_LIB_VERSION == _SVID_); |
| exc.retval = HUGE; |
| if(_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if(_LIB_VERSION == _SVID_) { |
| (void) WRITE2("atan2: DOMAIN error\n", 20); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 4: |
| case 104: |
| case 204: |
| /* hypot(finite,finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("hypot"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 5: |
| case 105: |
| case 205: |
| /* cosh(finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("cosh"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 6: |
| case 106: |
| case 206: |
| /* exp(finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("exp"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 7: |
| case 107: |
| case 207: |
| /* exp(finite) underflow */ |
| exc.type = UNDERFLOW; |
| exc.name = CSTR ("exp"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 8: |
| case 108: |
| case 208: |
| /* y0(0) = -inf */ |
| exc.type = DOMAIN; /* should be SING for IEEE */ |
| exc.name = CSTR ("y0"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("y0: DOMAIN error\n", 17); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 9: |
| case 109: |
| case 209: |
| /* y0(x<0) = NaN */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("y0"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("y0: DOMAIN error\n", 17); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 10: |
| case 110: |
| case 210: |
| /* y1(0) = -inf */ |
| exc.type = DOMAIN; /* should be SING for IEEE */ |
| exc.name = CSTR ("y1"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("y1: DOMAIN error\n", 17); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 11: |
| case 111: |
| case 211: |
| /* y1(x<0) = NaN */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("y1"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("y1: DOMAIN error\n", 17); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 12: |
| case 112: |
| case 212: |
| /* yn(n,0) = -inf */ |
| exc.type = DOMAIN; /* should be SING for IEEE */ |
| exc.name = CSTR ("yn"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = ((x < 0 && ((int) x & 1) != 0) |
| ? HUGE_VAL |
| : -HUGE_VAL); |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("yn: DOMAIN error\n", 17); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 13: |
| case 113: |
| case 213: |
| /* yn(x<0) = NaN */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("yn"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("yn: DOMAIN error\n", 17); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 14: |
| case 114: |
| case 214: |
| /* lgamma(finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("lgamma"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 15: |
| case 115: |
| case 215: |
| /* lgamma(-integer) or lgamma(0) */ |
| exc.type = SING; |
| exc.name = CSTR ("lgamma"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("lgamma: SING error\n", 19); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 16: |
| case 116: |
| case 216: |
| /* log(0) */ |
| exc.type = SING; |
| exc.name = CSTR ("log"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("log: SING error\n", 16); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 17: |
| case 117: |
| case 217: |
| /* log(x<0) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("log"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("log: DOMAIN error\n", 18); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 18: |
| case 118: |
| case 218: |
| /* log10(0) */ |
| exc.type = SING; |
| exc.name = CSTR ("log10"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("log10: SING error\n", 18); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 19: |
| case 119: |
| case 219: |
| /* log10(x<0) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("log10"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("log10: DOMAIN error\n", 20); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 21: |
| case 121: |
| case 221: |
| /* pow(x,y) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("pow"); |
| if (_LIB_VERSION == _SVID_) { |
| exc.retval = HUGE; |
| y *= 0.5; |
| if(x<zero&&__rint(y)!=y) exc.retval = -HUGE; |
| } else { |
| exc.retval = HUGE_VAL; |
| y *= 0.5; |
| if(x<zero&&__rint(y)!=y) exc.retval = -HUGE_VAL; |
| } |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 22: |
| case 122: |
| case 222: |
| /* pow(x,y) underflow */ |
| exc.type = UNDERFLOW; |
| exc.name = CSTR ("pow"); |
| exc.retval = zero; |
| y *= 0.5; |
| if (x < zero && __rint (y) != y) |
| exc.retval = -zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 23: |
| case 123: |
| case 223: |
| /* -0**neg */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("pow"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = zero; |
| else |
| exc.retval = -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("pow(0,neg): DOMAIN error\n", 25); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 43: |
| case 143: |
| case 243: |
| /* +0**neg */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("pow"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = zero; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("pow(0,neg): DOMAIN error\n", 25); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 24: |
| case 124: |
| case 224: |
| /* neg**non-integral */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("pow"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = zero; |
| else |
| exc.retval = zero/zero; /* X/Open allow NaN */ |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("neg**non-integral: DOMAIN error\n", 32); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 25: |
| case 125: |
| case 225: |
| /* sinh(finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("sinh"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = ( (x>zero) ? HUGE : -HUGE); |
| else |
| exc.retval = ( (x>zero) ? HUGE_VAL : -HUGE_VAL); |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 26: |
| case 126: |
| case 226: |
| /* sqrt(x<0) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("sqrt"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = zero; |
| else |
| exc.retval = zero/zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("sqrt: DOMAIN error\n", 19); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 27: |
| case 127: |
| case 227: |
| /* fmod(x,0) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("fmod"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = x; |
| else |
| exc.retval = zero/zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("fmod: DOMAIN error\n", 20); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 28: |
| case 128: |
| case 228: |
| /* remainder(x,0) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("remainder"); |
| exc.retval = zero/zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("remainder: DOMAIN error\n", 24); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 29: |
| case 129: |
| case 229: |
| /* acosh(x<1) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("acosh"); |
| exc.retval = zero/zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("acosh: DOMAIN error\n", 20); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 30: |
| case 130: |
| case 230: |
| /* atanh(|x|>1) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("atanh"); |
| exc.retval = zero/zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("atanh: DOMAIN error\n", 20); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 31: |
| case 131: |
| case 231: |
| /* atanh(|x|=1) */ |
| exc.type = SING; |
| exc.name = CSTR ("atanh"); |
| exc.retval = x/zero; /* sign(x)*inf */ |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("atanh: SING error\n", 18); |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| case 32: |
| case 132: |
| case 232: |
| /* scalb overflow; SVID also returns +-HUGE_VAL */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("scalb"); |
| exc.retval = x > zero ? HUGE_VAL : -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 33: |
| case 133: |
| case 233: |
| /* scalb underflow */ |
| exc.type = UNDERFLOW; |
| exc.name = CSTR ("scalb"); |
| exc.retval = __copysign(zero,x); |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 34: |
| case 134: |
| case 234: |
| /* j0(|x|>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = CSTR ("j0"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2(exc.name, 2); |
| (void) WRITE2(": TLOSS error\n", 14); |
| } |
| __set_errno (ERANGE); |
| } |
| break; |
| case 35: |
| case 135: |
| case 235: |
| /* y0(x>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = CSTR ("y0"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2(exc.name, 2); |
| (void) WRITE2(": TLOSS error\n", 14); |
| } |
| __set_errno (ERANGE); |
| } |
| break; |
| case 36: |
| case 136: |
| case 236: |
| /* j1(|x|>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = CSTR ("j1"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2(exc.name, 2); |
| (void) WRITE2(": TLOSS error\n", 14); |
| } |
| __set_errno (ERANGE); |
| } |
| break; |
| case 37: |
| case 137: |
| case 237: |
| /* y1(x>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = CSTR ("y1"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2(exc.name, 2); |
| (void) WRITE2(": TLOSS error\n", 14); |
| } |
| __set_errno (ERANGE); |
| } |
| break; |
| case 38: |
| case 138: |
| case 238: |
| /* jn(|x|>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = CSTR ("jn"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2(exc.name, 2); |
| (void) WRITE2(": TLOSS error\n", 14); |
| } |
| __set_errno (ERANGE); |
| } |
| break; |
| case 39: |
| case 139: |
| case 239: |
| /* yn(x>X_TLOSS) */ |
| exc.type = TLOSS; |
| exc.name = CSTR ("yn"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2(exc.name, 2); |
| (void) WRITE2(": TLOSS error\n", 14); |
| } |
| __set_errno (ERANGE); |
| } |
| break; |
| case 40: |
| case 140: |
| case 240: |
| /* tgamma(finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("tgamma"); |
| exc.retval = __copysign (HUGE_VAL, x); |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 41: |
| case 141: |
| case 241: |
| /* tgamma(-integer) */ |
| exc.type = SING; |
| exc.name = CSTR ("tgamma"); |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) { |
| (void) WRITE2("tgamma: SING error\n", 18); |
| exc.retval = HUGE_VAL; |
| } |
| __set_errno (EDOM); |
| } |
| break; |
| |
| case 44: |
| case 144: |
| case 244: |
| /* exp(finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("exp2"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 45: |
| case 145: |
| case 245: |
| /* exp(finite) underflow */ |
| exc.type = UNDERFLOW; |
| exc.name = CSTR ("exp2"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| |
| case 46: |
| case 146: |
| case 246: |
| /* exp(finite) overflow */ |
| exc.type = OVERFLOW; |
| exc.name = CSTR ("exp10"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = HUGE; |
| else |
| exc.retval = HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 47: |
| case 147: |
| case 247: |
| /* exp(finite) underflow */ |
| exc.type = UNDERFLOW; |
| exc.name = CSTR ("exp10"); |
| exc.retval = zero; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (ERANGE); |
| } |
| break; |
| case 48: |
| case 148: |
| case 248: |
| /* log2(0) */ |
| exc.type = SING; |
| exc.name = CSTR ("log2"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = -HUGE_VAL; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| __set_errno (EDOM); |
| } |
| break; |
| case 49: |
| case 149: |
| case 249: |
| /* log2(x<0) */ |
| exc.type = DOMAIN; |
| exc.name = CSTR ("log2"); |
| if (_LIB_VERSION == _SVID_) |
| exc.retval = -HUGE; |
| else |
| exc.retval = NAN; |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (EDOM); |
| else if (!matherr(&exc)) { |
| __set_errno (EDOM); |
| } |
| break; |
| case 50: |
| case 150: |
| case 250: |
| /* tgamma(+-0) */ |
| exc.type = SING; |
| exc.name = CSTR ("tgamma"); |
| exc.retval = __copysign (HUGE_VAL, x); |
| if (_LIB_VERSION == _POSIX_) |
| __set_errno (ERANGE); |
| else if (!matherr(&exc)) { |
| if (_LIB_VERSION == _SVID_) |
| (void) WRITE2("tgamma: SING error\n", 18); |
| __set_errno (ERANGE); |
| } |
| break; |
| |
| /* #### Last used is 50/150/250 ### */ |
| |
| default: |
| __builtin_unreachable (); |
| } |
| return exc.retval; |
| } |
| #endif |