diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/libc/gen/wordexp.c | 8 | ||||
-rw-r--r-- | lib/libc/sys/pdfork.2 | 22 | ||||
-rw-r--r-- | lib/libpam/modules/pam_passwdqc/Makefile | 2 | ||||
-rw-r--r-- | lib/libutil/expand_number.c | 39 | ||||
-rw-r--r-- | lib/libutil/login_auth.c | 2 | ||||
-rw-r--r-- | lib/libutil/login_cap.c | 2 | ||||
-rw-r--r-- | lib/libutil/pidfile.c | 2 | ||||
-rw-r--r-- | lib/libutil/quotafile.c | 8 | ||||
-rw-r--r-- | lib/libutil/uucplock.c | 7 | ||||
-rw-r--r-- | lib/msun/src/s_erf.c | 2 | ||||
-rw-r--r-- | lib/msun/src/s_erff.c | 168 |
11 files changed, 116 insertions, 146 deletions
diff --git a/lib/libc/gen/wordexp.c b/lib/libc/gen/wordexp.c index c361980..377caff 100644 --- a/lib/libc/gen/wordexp.c +++ b/lib/libc/gen/wordexp.c @@ -121,7 +121,7 @@ we_askshell(const char *words, wordexp_t *we, int flags) serrno = errno; - if (pipe(pdes) < 0) + if (pipe2(pdes, O_CLOEXEC) < 0) return (WRDE_NOSPACE); /* XXX */ (void)sigemptyset(&newsigblock); (void)sigaddset(&newsigblock, SIGCHLD); @@ -140,10 +140,10 @@ we_askshell(const char *words, wordexp_t *we, int flags) * builtin on `words'. */ (void)_sigprocmask(SIG_SETMASK, &oldsigblock, NULL); - _close(pdes[0]); - if (_dup2(pdes[1], STDOUT_FILENO) < 0) + if ((pdes[1] != STDOUT_FILENO ? + _dup2(pdes[1], STDOUT_FILENO) : + _fcntl(pdes[1], F_SETFD, 0)) < 0) _exit(1); - _close(pdes[1]); execl(_PATH_BSHELL, "sh", flags & WRDE_UNDEF ? "-u" : "+u", "-c", "eval \"$1\";eval \"wordexp $2\"", "", flags & WRDE_SHOWERR ? "" : "exec 2>/dev/null", words, diff --git a/lib/libc/sys/pdfork.2 b/lib/libc/sys/pdfork.2 index ad33566..26d0eb0 100644 --- a/lib/libc/sys/pdfork.2 +++ b/lib/libc/sys/pdfork.2 @@ -1,10 +1,14 @@ .\" -.\" Copyright (c) 2009-2010, 2012 Robert N. M. Watson +.\" Copyright (c) 2009-2010, 2012-2013 Robert N. M. Watson .\" All rights reserved. .\" .\" This software was developed at the University of Cambridge Computer .\" Laboratory with support from a grant from Google, Inc. .\" +.\" This software was developed by SRI International and the University of +.\" Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) +.\" ("CTSRD"), as part of the DARPA CRASH research programme. +.\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: @@ -28,7 +32,7 @@ .\" .\" $FreeBSD$ .\" -.Dd February 25, 2012 +.Dd August 28, 2013 .Dt PDFORK 2 .Os .Sh NAME @@ -71,7 +75,9 @@ Instead of the default terminate-on-close behaviour, allow the process to live until it is explicitly killed with .Xr kill 2 . .Pp -This option is not permitted in Capsicum capability mode (see +This option is not permitted in +.Xr capsicum 4 +capability mode (see .Xr cap_enter 2 ) . .El .Pp @@ -119,6 +125,12 @@ is set; if the process is still alive and this is the last reference to the process descriptor, the process will be terminated with the signal .Dv SIGKILL . +.Pp +.Nm +and associated functions depend on +.Cd "options PROCDESC" +described in +.Xr procdesc 4 . .Sh RETURN VALUES .Fn pdfork returns a PID, 0 or -1, as @@ -156,7 +168,9 @@ for .Xr fstat 2 , .Xr kill 2 , .Xr poll 2 , -.Xr wait4 2 +.Xr wait4 2 , +.Xr capsicum 4 , +.Xr procdesc 4 .Sh HISTORY The .Fn pdfork , diff --git a/lib/libpam/modules/pam_passwdqc/Makefile b/lib/libpam/modules/pam_passwdqc/Makefile index 905afe1..c9cc30e 100644 --- a/lib/libpam/modules/pam_passwdqc/Makefile +++ b/lib/libpam/modules/pam_passwdqc/Makefile @@ -7,7 +7,7 @@ LIB= pam_passwdqc SRCS= pam_passwdqc.c passwdqc_check.c passwdqc_random.c wordset_4k.c MAN= pam_passwdqc.8 -WARNS?= 0 +WARNS?= 2 CFLAGS+= -I${SRCDIR} DPADD= ${LIBCRYPT} diff --git a/lib/libutil/expand_number.c b/lib/libutil/expand_number.c index 401e2d9..24bcc39 100644 --- a/lib/libutil/expand_number.c +++ b/lib/libutil/expand_number.c @@ -35,42 +35,24 @@ __FBSDID("$FreeBSD$"); #include <libutil.h> #include <stdint.h> -/* - * Convert an expression of the following forms to a uint64_t. - * 1) A positive decimal number. - * 2) A positive decimal number followed by a 'b' or 'B' (mult by 1). - * 3) A positive decimal number followed by a 'k' or 'K' (mult by 1 << 10). - * 4) A positive decimal number followed by a 'm' or 'M' (mult by 1 << 20). - * 5) A positive decimal number followed by a 'g' or 'G' (mult by 1 << 30). - * 6) A positive decimal number followed by a 't' or 'T' (mult by 1 << 40). - * 7) A positive decimal number followed by a 'p' or 'P' (mult by 1 << 50). - * 8) A positive decimal number followed by a 'e' or 'E' (mult by 1 << 60). - */ int expand_number(const char *buf, uint64_t *num) { + char *endptr; + uintmax_t umaxval; uint64_t number; - int saved_errno; unsigned shift; - char *endptr; + int serrno; - saved_errno = errno; + serrno = errno; errno = 0; - - number = strtoumax(buf, &endptr, 0); - - if (number == UINTMAX_MAX && errno == ERANGE) { - return (-1); - } - - if (errno == 0) - errno = saved_errno; - - if (endptr == buf) { - /* No valid digits. */ - errno = EINVAL; + umaxval = strtoumax(buf, &endptr, 0); + if (umaxval > UINT64_MAX) + errno = ERANGE; + if (errno != 0) return (-1); - } + errno = serrno; + number = umaxval; switch (tolower((unsigned char)*endptr)) { case 'e': @@ -106,7 +88,6 @@ expand_number(const char *buf, uint64_t *num) errno = ERANGE; return (-1); } - *num = number << shift; return (0); } diff --git a/lib/libutil/login_auth.c b/lib/libutil/login_auth.c index ce9a2e4..1fc7e73 100644 --- a/lib/libutil/login_auth.c +++ b/lib/libutil/login_auth.c @@ -98,7 +98,7 @@ auth_cat(const char *file) int fd, count; char buf[BUFSIZ]; - if ((fd = open(file, O_RDONLY)) < 0) + if ((fd = open(file, O_RDONLY | O_CLOEXEC)) < 0) return 0; while ((count = read(fd, buf, sizeof(buf))) > 0) (void)write(fileno(stdout), buf, count); diff --git a/lib/libutil/login_cap.c b/lib/libutil/login_cap.c index 8fee760..8915d0a 100644 --- a/lib/libutil/login_cap.c +++ b/lib/libutil/login_cap.c @@ -239,7 +239,7 @@ login_getclassbyname(char const *name, const struct passwd *pwd) break; /* Don't retry default on 'me' */ if (i == 0) r = -1; - else if ((r = open(login_dbarray[0], O_RDONLY)) >= 0) + else if ((r = open(login_dbarray[0], O_RDONLY | O_CLOEXEC)) >= 0) close(r); /* * If there's at least one login class database, diff --git a/lib/libutil/pidfile.c b/lib/libutil/pidfile.c index 7949e9e..3a5e512 100644 --- a/lib/libutil/pidfile.c +++ b/lib/libutil/pidfile.c @@ -73,7 +73,7 @@ pidfile_read(const char *path, pid_t *pidptr) char buf[16], *endptr; int error, fd, i; - fd = open(path, O_RDONLY); + fd = open(path, O_RDONLY | O_CLOEXEC); if (fd == -1) return (errno); diff --git a/lib/libutil/quotafile.c b/lib/libutil/quotafile.c index 03e3de4..6b5a44d 100644 --- a/lib/libutil/quotafile.c +++ b/lib/libutil/quotafile.c @@ -137,7 +137,7 @@ quota_open(struct fstab *fs, int quotatype, int openflags) goto error; } qf->accmode = openflags & O_ACCMODE; - if ((qf->fd = open(qf->qfname, qf->accmode)) < 0 && + if ((qf->fd = open(qf->qfname, qf->accmode|O_CLOEXEC)) < 0 && (openflags & O_CREAT) != O_CREAT) goto error; /* File open worked, so process it */ @@ -168,7 +168,8 @@ quota_open(struct fstab *fs, int quotatype, int openflags) /* not reached */ } /* open failed, but O_CREAT was specified, so create a new file */ - if ((qf->fd = open(qf->qfname, O_RDWR|O_CREAT|O_TRUNC, 0)) < 0) + if ((qf->fd = open(qf->qfname, O_RDWR|O_CREAT|O_TRUNC|O_CLOEXEC, 0)) < + 0) goto error; qf->wordsize = 64; memset(&dqh, 0, sizeof(dqh)); @@ -534,7 +535,8 @@ quota_convert(struct quotafile *qf, int wordsize) free(newqf); return (-1); } - if ((newqf->fd = open(qf->qfname, O_RDWR|O_CREAT|O_TRUNC, 0)) < 0) { + if ((newqf->fd = open(qf->qfname, O_RDWR|O_CREAT|O_TRUNC|O_CLOEXEC, + 0)) < 0) { serrno = errno; goto error; } diff --git a/lib/libutil/uucplock.c b/lib/libutil/uucplock.c index afbfaa4..424ac26 100644 --- a/lib/libutil/uucplock.c +++ b/lib/libutil/uucplock.c @@ -76,7 +76,8 @@ uu_lock(const char *tty_name) pid); (void)snprintf(lckname, sizeof(lckname), _PATH_UUCPLOCK LOCKFMT, tty_name); - if ((tmpfd = creat(lcktmpname, 0664)) < 0) + if ((tmpfd = open(lcktmpname, O_CREAT | O_TRUNC | O_WRONLY | O_CLOEXEC, + 0664)) < 0) GORET(0, UU_LOCK_CREAT_ERR); for (i = 0; i < MAXTRIES; i++) { @@ -88,7 +89,7 @@ uu_lock(const char *tty_name) * check to see if the process holding the lock * still exists */ - if ((fd = open(lckname, O_RDONLY)) < 0) + if ((fd = open(lckname, O_RDONLY | O_CLOEXEC)) < 0) GORET(1, UU_LOCK_OPEN_ERR); if ((pid_old = get_pid (fd, &err)) == -1) @@ -132,7 +133,7 @@ uu_lock_txfr(const char *tty_name, pid_t pid) snprintf(lckname, sizeof(lckname), _PATH_UUCPLOCK LOCKFMT, tty_name); - if ((fd = open(lckname, O_RDWR)) < 0) + if ((fd = open(lckname, O_RDWR | O_CLOEXEC)) < 0) return UU_LOCK_OWNER_ERR; if (get_pid(fd, &err) != getpid()) err = UU_LOCK_OWNER_ERR; diff --git a/lib/msun/src/s_erf.c b/lib/msun/src/s_erf.c index 0886e5e..854767b 100644 --- a/lib/msun/src/s_erf.c +++ b/lib/msun/src/s_erf.c @@ -201,7 +201,7 @@ erf(double x) if(ix < 0x3feb0000) { /* |x|<0.84375 */ if(ix < 0x3e300000) { /* |x|<2**-28 */ if (ix < 0x00800000) - return 0.125*(8.0*x+efx8*x); /*avoid underflow */ + return (8*x+efx8*x)/8; /* avoid spurious underflow */ return x + efx*x; } z = x*x; diff --git a/lib/msun/src/s_erff.c b/lib/msun/src/s_erff.c index a44e135..b97ca1d 100644 --- a/lib/msun/src/s_erff.c +++ b/lib/msun/src/s_erff.c @@ -24,75 +24,59 @@ tiny = 1e-30, half= 5.0000000000e-01, /* 0x3F000000 */ one = 1.0000000000e+00, /* 0x3F800000 */ two = 2.0000000000e+00, /* 0x40000000 */ - /* c = (subfloat)0.84506291151 */ -erx = 8.4506291151e-01, /* 0x3f58560b */ /* - * Coefficients for approximation to erf on [0,0.84375] + * Coefficients for approximation to erf on [0,0.84375] */ efx = 1.2837916613e-01, /* 0x3e0375d4 */ efx8= 1.0270333290e+00, /* 0x3f8375d4 */ -pp0 = 1.2837916613e-01, /* 0x3e0375d4 */ -pp1 = -3.2504209876e-01, /* 0xbea66beb */ -pp2 = -2.8481749818e-02, /* 0xbce9528f */ -pp3 = -5.7702702470e-03, /* 0xbbbd1489 */ -pp4 = -2.3763017452e-05, /* 0xb7c756b1 */ -qq1 = 3.9791721106e-01, /* 0x3ecbbbce */ -qq2 = 6.5022252500e-02, /* 0x3d852a63 */ -qq3 = 5.0813062117e-03, /* 0x3ba68116 */ -qq4 = 1.3249473704e-04, /* 0x390aee49 */ -qq5 = -3.9602282413e-06, /* 0xb684e21a */ /* - * Coefficients for approximation to erf in [0.84375,1.25] + * Domain [0, 0.84375], range ~[-5.4446e-10,5.5197e-10]: + * |(erf(x) - x)/x - p(x)/q(x)| < 2**-31. */ -pa0 = -2.3621185683e-03, /* 0xbb1acdc6 */ -pa1 = 4.1485610604e-01, /* 0x3ed46805 */ -pa2 = -3.7220788002e-01, /* 0xbebe9208 */ -pa3 = 3.1834661961e-01, /* 0x3ea2fe54 */ -pa4 = -1.1089469492e-01, /* 0xbde31cc2 */ -pa5 = 3.5478305072e-02, /* 0x3d1151b3 */ -pa6 = -2.1663755178e-03, /* 0xbb0df9c0 */ -qa1 = 1.0642088205e-01, /* 0x3dd9f331 */ -qa2 = 5.4039794207e-01, /* 0x3f0a5785 */ -qa3 = 7.1828655899e-02, /* 0x3d931ae7 */ -qa4 = 1.2617121637e-01, /* 0x3e013307 */ -qa5 = 1.3637083583e-02, /* 0x3c5f6e13 */ -qa6 = 1.1984500103e-02, /* 0x3c445aa3 */ +pp0 = 1.28379166e-01F, /* 0x1.06eba8p-3 */ +pp1 = -3.36030394e-01F, /* -0x1.58185ap-2 */ +pp2 = -1.86260219e-03F, /* -0x1.e8451ep-10 */ +qq1 = 3.12324286e-01F, /* 0x1.3fd1f0p-2 */ +qq2 = 2.16070302e-02F, /* 0x1.620274p-6 */ +qq3 = -1.98859419e-03F, /* -0x1.04a626p-9 */ /* - * Coefficients for approximation to erfc in [1.25,1/0.35] + * Domain [0.84375, 1.25], range ~[-1.953e-11,1.940e-11]: + * |(erf(x) - erx) - p(x)/q(x)| < 2**-36. */ -ra0 = -9.8649440333e-03, /* 0xbc21a093 */ -ra1 = -6.9385856390e-01, /* 0xbf31a0b7 */ -ra2 = -1.0558626175e+01, /* 0xc128f022 */ -ra3 = -6.2375331879e+01, /* 0xc2798057 */ -ra4 = -1.6239666748e+02, /* 0xc322658c */ -ra5 = -1.8460508728e+02, /* 0xc3389ae7 */ -ra6 = -8.1287437439e+01, /* 0xc2a2932b */ -ra7 = -9.8143291473e+00, /* 0xc11d077e */ -sa1 = 1.9651271820e+01, /* 0x419d35ce */ -sa2 = 1.3765776062e+02, /* 0x4309a863 */ -sa3 = 4.3456588745e+02, /* 0x43d9486f */ -sa4 = 6.4538726807e+02, /* 0x442158c9 */ -sa5 = 4.2900814819e+02, /* 0x43d6810b */ -sa6 = 1.0863500214e+02, /* 0x42d9451f */ -sa7 = 6.5702495575e+00, /* 0x40d23f7c */ -sa8 = -6.0424413532e-02, /* 0xbd777f97 */ +erx = 8.42697144e-01F, /* 0x1.af7600p-1. erf(1) rounded to 16 bits. */ +pa0 = 3.64939137e-06F, /* 0x1.e9d022p-19 */ +pa1 = 4.15109694e-01F, /* 0x1.a91284p-2 */ +pa2 = -1.65179938e-01F, /* -0x1.5249dcp-3 */ +pa3 = 1.10914491e-01F, /* 0x1.c64e46p-4 */ +qa1 = 6.02074385e-01F, /* 0x1.344318p-1 */ +qa2 = 5.35934687e-01F, /* 0x1.126608p-1 */ +qa3 = 1.68576106e-01F, /* 0x1.593e6ep-3 */ +qa4 = 5.62181212e-02F, /* 0x1.cc89f2p-5 */ /* - * Coefficients for approximation to erfc in [1/.35,28] + * Domain [1.25,1/0.35], range ~[-7.043e-10,7.457e-10]: + * |log(x*erfc(x)) + x**2 + 0.5625 - r(x)/s(x)| < 2**-30 */ -rb0 = -9.8649431020e-03, /* 0xbc21a092 */ -rb1 = -7.9928326607e-01, /* 0xbf4c9dd4 */ -rb2 = -1.7757955551e+01, /* 0xc18e104b */ -rb3 = -1.6063638306e+02, /* 0xc320a2ea */ -rb4 = -6.3756646729e+02, /* 0xc41f6441 */ -rb5 = -1.0250950928e+03, /* 0xc480230b */ -rb6 = -4.8351919556e+02, /* 0xc3f1c275 */ -sb1 = 3.0338060379e+01, /* 0x41f2b459 */ -sb2 = 3.2579251099e+02, /* 0x43a2e571 */ -sb3 = 1.5367296143e+03, /* 0x44c01759 */ -sb4 = 3.1998581543e+03, /* 0x4547fdbb */ -sb5 = 2.5530502930e+03, /* 0x451f90ce */ -sb6 = 4.7452853394e+02, /* 0x43ed43a7 */ -sb7 = -2.2440952301e+01; /* 0xc1b38712 */ +ra0 = -9.87132732e-03F, /* -0x1.4376b2p-7 */ +ra1 = -5.53605914e-01F, /* -0x1.1b723cp-1 */ +ra2 = -2.17589188e+00F, /* -0x1.1683a0p+1 */ +ra3 = -1.43268085e+00F, /* -0x1.6ec42cp+0 */ +sa1 = 5.45995426e+00F, /* 0x1.5d6fe4p+2 */ +sa2 = 6.69798088e+00F, /* 0x1.acabb8p+2 */ +sa3 = 1.43113089e+00F, /* 0x1.6e5e98p+0 */ +sa4 = -5.77397496e-02F, /* -0x1.d90108p-5 */ +/* + * Domain [1/0.35, 11], range ~[-2.264e-13,2.336e-13]: + * |log(x*erfc(x)) + x**2 + 0.5625 - r(x)/s(x)| < 2**-42 + */ +rb0 = -9.86494310e-03F, /* -0x1.434124p-7 */ +rb1 = -6.25171244e-01F, /* -0x1.401672p-1 */ +rb2 = -6.16498327e+00F, /* -0x1.8a8f16p+2 */ +rb3 = -1.66696873e+01F, /* -0x1.0ab70ap+4 */ +rb4 = -9.53764343e+00F, /* -0x1.313460p+3 */ +sb1 = 1.26884899e+01F, /* 0x1.96081cp+3 */ +sb2 = 4.51839523e+01F, /* 0x1.6978bcp+5 */ +sb3 = 4.72810211e+01F, /* 0x1.7a3f88p+5 */ +sb4 = 8.93033314e+00F; /* 0x1.1dc54ap+3 */ float erff(float x) @@ -107,43 +91,37 @@ erff(float x) } if(ix < 0x3f580000) { /* |x|<0.84375 */ - if(ix < 0x31800000) { /* |x|<2**-28 */ - if (ix < 0x04000000) - /*avoid underflow */ - return (float)0.125*((float)8.0*x+efx8*x); + if(ix < 0x38800000) { /* |x|<2**-14 */ + if (ix < 0x04000000) /* |x|<0x1p-119 */ + return (8*x+efx8*x)/8; /* avoid spurious underflow */ return x + efx*x; } z = x*x; - r = pp0+z*(pp1+z*(pp2+z*(pp3+z*pp4))); - s = one+z*(qq1+z*(qq2+z*(qq3+z*(qq4+z*qq5)))); + r = pp0+z*(pp1+z*pp2); + s = one+z*(qq1+z*(qq2+z*qq3)); y = r/s; return x + x*y; } if(ix < 0x3fa00000) { /* 0.84375 <= |x| < 1.25 */ s = fabsf(x)-one; - P = pa0+s*(pa1+s*(pa2+s*(pa3+s*(pa4+s*(pa5+s*pa6))))); - Q = one+s*(qa1+s*(qa2+s*(qa3+s*(qa4+s*(qa5+s*qa6))))); + P = pa0+s*(pa1+s*(pa2+s*pa3)); + Q = one+s*(qa1+s*(qa2+s*(qa3+s*qa4))); if(hx>=0) return erx + P/Q; else return -erx - P/Q; } - if (ix >= 0x40c00000) { /* inf>|x|>=6 */ + if (ix >= 0x40800000) { /* inf>|x|>=4 */ if(hx>=0) return one-tiny; else return tiny-one; } x = fabsf(x); s = one/(x*x); if(ix< 0x4036DB6E) { /* |x| < 1/0.35 */ - R=ra0+s*(ra1+s*(ra2+s*(ra3+s*(ra4+s*( - ra5+s*(ra6+s*ra7)))))); - S=one+s*(sa1+s*(sa2+s*(sa3+s*(sa4+s*( - sa5+s*(sa6+s*(sa7+s*sa8))))))); + R=ra0+s*(ra1+s*(ra2+s*ra3)); + S=one+s*(sa1+s*(sa2+s*(sa3+s*sa4))); } else { /* |x| >= 1/0.35 */ - R=rb0+s*(rb1+s*(rb2+s*(rb3+s*(rb4+s*( - rb5+s*rb6))))); - S=one+s*(sb1+s*(sb2+s*(sb3+s*(sb4+s*( - sb5+s*(sb6+s*sb7)))))); + R=rb0+s*(rb1+s*(rb2+s*(rb3+s*rb4))); + S=one+s*(sb1+s*(sb2+s*(sb3+s*sb4))); } - GET_FLOAT_WORD(ix,x); - SET_FLOAT_WORD(z,ix&0xfffff000); - r = __ieee754_expf(-z*z-(float)0.5625)*__ieee754_expf((z-x)*(z+x)+R/S); + SET_FLOAT_WORD(z,hx&0xffffe000); + r = expf(-z*z-0.5625F)*expf((z-x)*(z+x)+R/S); if(hx>=0) return one-r/x; else return r/x-one; } @@ -160,11 +138,11 @@ erfcf(float x) } if(ix < 0x3f580000) { /* |x|<0.84375 */ - if(ix < 0x23800000) /* |x|<2**-56 */ + if(ix < 0x33800000) /* |x|<2**-24 */ return one-x; z = x*x; - r = pp0+z*(pp1+z*(pp2+z*(pp3+z*pp4))); - s = one+z*(qq1+z*(qq2+z*(qq3+z*(qq4+z*qq5)))); + r = pp0+z*(pp1+z*pp2); + s = one+z*(qq1+z*(qq2+z*qq3)); y = r/s; if(hx < 0x3e800000) { /* x<1/4 */ return one-(x+x*y); @@ -176,33 +154,27 @@ erfcf(float x) } if(ix < 0x3fa00000) { /* 0.84375 <= |x| < 1.25 */ s = fabsf(x)-one; - P = pa0+s*(pa1+s*(pa2+s*(pa3+s*(pa4+s*(pa5+s*pa6))))); - Q = one+s*(qa1+s*(qa2+s*(qa3+s*(qa4+s*(qa5+s*qa6))))); + P = pa0+s*(pa1+s*(pa2+s*pa3)); + Q = one+s*(qa1+s*(qa2+s*(qa3+s*qa4))); if(hx>=0) { z = one-erx; return z - P/Q; } else { z = erx+P/Q; return one+z; } } - if (ix < 0x41e00000) { /* |x|<28 */ + if (ix < 0x41300000) { /* |x|<11 */ x = fabsf(x); s = one/(x*x); if(ix< 0x4036DB6D) { /* |x| < 1/.35 ~ 2.857143*/ - R=ra0+s*(ra1+s*(ra2+s*(ra3+s*(ra4+s*( - ra5+s*(ra6+s*ra7)))))); - S=one+s*(sa1+s*(sa2+s*(sa3+s*(sa4+s*( - sa5+s*(sa6+s*(sa7+s*sa8))))))); + R=ra0+s*(ra1+s*(ra2+s*ra3)); + S=one+s*(sa1+s*(sa2+s*(sa3+s*sa4))); } else { /* |x| >= 1/.35 ~ 2.857143 */ - if(hx<0&&ix>=0x40c00000) return two-tiny;/* x < -6 */ - R=rb0+s*(rb1+s*(rb2+s*(rb3+s*(rb4+s*( - rb5+s*rb6))))); - S=one+s*(sb1+s*(sb2+s*(sb3+s*(sb4+s*( - sb5+s*(sb6+s*sb7)))))); + if(hx<0&&ix>=0x40a00000) return two-tiny;/* x < -5 */ + R=rb0+s*(rb1+s*(rb2+s*(rb3+s*rb4))); + S=one+s*(sb1+s*(sb2+s*(sb3+s*sb4))); } - GET_FLOAT_WORD(ix,x); - SET_FLOAT_WORD(z,ix&0xfffff000); - r = __ieee754_expf(-z*z-(float)0.5625)* - __ieee754_expf((z-x)*(z+x)+R/S); + SET_FLOAT_WORD(z,hx&0xffffe000); + r = expf(-z*z-0.5625F)*expf((z-x)*(z+x)+R/S); if(hx>0) return r/x; else return two-r/x; } else { if(hx>0) return tiny*tiny; else return two-tiny; |