diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2004-05-26 04:47:00 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-05-26 04:47:00 +0000 |
| commit | ffdd5e50e18b0cb212acad135e421d932cf3d3a2 (patch) | |
| tree | 0a2b8dfc93270b99dbbb314cc68152ea2c5b230a | |
| parent | a752d0cc542a891a086d486654a43212f1821360 (diff) | |
| download | glibc-ffdd5e50e18b0cb212acad135e421d932cf3d3a2.tar.xz glibc-ffdd5e50e18b0cb212acad135e421d932cf3d3a2.zip | |
Update.
2004-05-25 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/fpu/Makefile: Make ld.so a dependency of libm.so.
* sysdeps/powerpc/fpu/bits/mathinline.h [__LIBC_INERNAL_MATH_INLINES]
(__ieee754_sqrt): Define as __MATH_INLINE using fsqrt instruction.
(__ieee754_sqrtf): Define as __MATH_INLINE using fsqrts instruction.
* sysdeps/powerpc/fpu/e_sqrt.c (__slow_ieee754_sqrt): Moved
implementation from w_sqrt.c.
* sysdeps/powerpc/fpu/e_sqrtf.c (__slow_ieee754_sqrtf): Moved
implementation from w_sqrtf.c.
* sysdeps/powerpc/fpu/w_sqrt.c (__sqrt): Wrapper implementation
using inline __ieee754_sqrt().
* sysdeps/powerpc/fpu/w_sqrtf.c (__sqrtf): Wrapper implementation
using inline __ieee754_sqrtf().
* sysdeps/powerpc/powerpc32/sysdep.h [__ASSEMBLER__]: Include
<sysdeps/powerpc/sysdep.h> independent of __ASSEMBLER__.
* sysdeps/powerpc/sysdep.h [__ASSEMBLER__] (PPC_FEATURE_*): Define
PPC_FEATURE_* independent of __ASSEMBLER__.
2004-05-25 Jakub Jelinek <jakub@redhat.com>
* sysdeps/pthread/aio_notify.c: Use <> instead of "" for aio_misc.h
include.
(aio_start_notify_thread): Define if not defined.
(notify_func_wrapper): Use it.
* sysdeps/pthread/aio_misc.c: Use <> instead of "" for aio_misc.h
include.
(aio_create_helper_thread): Define if not defined.
(__aio_create_helper_thread): New function.
(__aio_enqueue_request): Use aio_create_helper_thread.
* nis/ypclnt.c (ypall_data, ypall_foreach): Remove.
(struct ypresp_all_data): New type.
(__xdr_ypresp_all): Change second argument to
struct ypresp_all_data *. Replace ypall_foreach and
ypall_data with objp->foreach and objp->data.
(yp_all): Remove status variable, add data. Replace
all uses of status with data.status. Initialize data.foreach
and data.data instead of ypall_foreach and ypall_data.
2004-05-24 Jakub Jelinek <jakub@redhat.com>
* elf/dl-lookup.c (add_dependency): Set DF_1_NODELETE bit
in l_flags_1, not in l_flags.
| -rw-r--r-- | ChangeLog | 45 | ||||
| -rw-r--r-- | nis/ypclnt.c | 38 | ||||
| -rw-r--r-- | nptl/ChangeLog | 4 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/aio_misc.h | 67 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/Makefile | 3 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/bits/mathinline.h | 52 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/e_sqrt.c | 186 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/e_sqrtf.c | 163 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/w_sqrt.c | 143 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/w_sqrtf.c | 138 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/sysdep.h | 4 | ||||
| -rw-r--r-- | sysdeps/powerpc/sysdep.h | 30 | ||||
| -rw-r--r-- | sysdeps/pthread/aio_misc.c | 28 | ||||
| -rw-r--r-- | sysdeps/pthread/aio_notify.c | 9 |
14 files changed, 636 insertions, 274 deletions
@@ -1,3 +1,48 @@ +2004-05-25 Steven Munroe <sjmunroe@us.ibm.com> + + * sysdeps/powerpc/fpu/Makefile: Make ld.so a dependency of libm.so. + * sysdeps/powerpc/fpu/bits/mathinline.h [__LIBC_INERNAL_MATH_INLINES] + (__ieee754_sqrt): Define as __MATH_INLINE using fsqrt instruction. + (__ieee754_sqrtf): Define as __MATH_INLINE using fsqrts instruction. + * sysdeps/powerpc/fpu/e_sqrt.c (__slow_ieee754_sqrt): Moved + implementation from w_sqrt.c. + * sysdeps/powerpc/fpu/e_sqrtf.c (__slow_ieee754_sqrtf): Moved + implementation from w_sqrtf.c. + * sysdeps/powerpc/fpu/w_sqrt.c (__sqrt): Wrapper implementation + using inline __ieee754_sqrt(). + * sysdeps/powerpc/fpu/w_sqrtf.c (__sqrtf): Wrapper implementation + using inline __ieee754_sqrtf(). + * sysdeps/powerpc/powerpc32/sysdep.h [__ASSEMBLER__]: Include + <sysdeps/powerpc/sysdep.h> independent of __ASSEMBLER__. + * sysdeps/powerpc/sysdep.h [__ASSEMBLER__] (PPC_FEATURE_*): Define + PPC_FEATURE_* independent of __ASSEMBLER__. + +2004-05-25 Jakub Jelinek <jakub@redhat.com> + + * sysdeps/pthread/aio_notify.c: Use <> instead of "" for aio_misc.h + include. + (aio_start_notify_thread): Define if not defined. + (notify_func_wrapper): Use it. + * sysdeps/pthread/aio_misc.c: Use <> instead of "" for aio_misc.h + include. + (aio_create_helper_thread): Define if not defined. + (__aio_create_helper_thread): New function. + (__aio_enqueue_request): Use aio_create_helper_thread. + + * nis/ypclnt.c (ypall_data, ypall_foreach): Remove. + (struct ypresp_all_data): New type. + (__xdr_ypresp_all): Change second argument to + struct ypresp_all_data *. Replace ypall_foreach and + ypall_data with objp->foreach and objp->data. + (yp_all): Remove status variable, add data. Replace + all uses of status with data.status. Initialize data.foreach + and data.data instead of ypall_foreach and ypall_data. + +2004-05-24 Jakub Jelinek <jakub@redhat.com> + + * elf/dl-lookup.c (add_dependency): Set DF_1_NODELETE bit + in l_flags_1, not in l_flags. + 2004-04-10 Robert Millan <robertmh@gnu.org> * sysdeps/unix/sysv/linux/bits/in.h: Cosmetic fixes to get in sync diff --git a/nis/ypclnt.c b/nis/ypclnt.c index d6e2205fd9..ab28e6002b 100644 --- a/nis/ypclnt.c +++ b/nis/ypclnt.c @@ -618,12 +618,16 @@ yp_order (const char *indomain, const char *inmap, unsigned int *outorder) return YPERR_SUCCESS; } -static void *ypall_data; -static int (*ypall_foreach) (int status, char *key, int keylen, - char *val, int vallen, char *data); +struct ypresp_all_data +{ + unsigned long status; + void *data; + int (*foreach) (int status, char *key, int keylen, + char *val, int vallen, char *data); +}; static bool_t -__xdr_ypresp_all (XDR *xdrs, u_long *objp) +__xdr_ypresp_all (XDR *xdrs, struct ypresp_all_data *objp) { while (1) { @@ -633,13 +637,13 @@ __xdr_ypresp_all (XDR *xdrs, u_long *objp) if (!xdr_ypresp_all (xdrs, &resp)) { xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp); - *objp = YP_YPERR; + objp->status = YP_YPERR; return FALSE; } if (resp.more == 0) { xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp); - *objp = YP_NOMORE; + objp->status = YP_NOMORE; return TRUE; } @@ -656,24 +660,24 @@ __xdr_ypresp_all (XDR *xdrs, u_long *objp) But we are allowed to add data behind the buffer, if we don't modify the length. So add an extra NUL character to avoid trouble with broken code. */ - *objp = YP_TRUE; + objp->status = YP_TRUE; memcpy (key, resp.ypresp_all_u.val.key.keydat_val, keylen); key[keylen] = '\0'; memcpy (val, resp.ypresp_all_u.val.val.valdat_val, vallen); val[vallen] = '\0'; xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp); - if ((*ypall_foreach) (*objp, key, keylen, - val, vallen, ypall_data)) + if ((*objp->foreach) (objp->status, key, keylen, + val, vallen, objp->data)) return TRUE; } break; default: - *objp = resp.ypresp_all_u.val.stat; + objp->status = resp.ypresp_all_u.val.stat; xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp); /* Sun says we don't need to make this call, but must return immediatly. Since Solaris makes this call, we will call the callback function, too. */ - (*ypall_foreach) (*objp, NULL, 0, NULL, 0, ypall_data); + (*objp->foreach) (objp->status, NULL, 0, NULL, 0, objp->data); return TRUE; } } @@ -689,7 +693,7 @@ yp_all (const char *indomain, const char *inmap, enum clnt_stat result; struct sockaddr_in clnt_sin; CLIENT *clnt; - unsigned long status; + struct ypresp_all_data data; int clnt_sock; int saved_errno = errno; @@ -725,12 +729,12 @@ yp_all (const char *indomain, const char *inmap, req.domain = (char *) indomain; req.map = (char *) inmap; - ypall_foreach = incallback->foreach; - ypall_data = (void *) incallback->data; + data.foreach = incallback->foreach; + data.data = (void *) incallback->data; result = clnt_call (clnt, YPPROC_ALL, (xdrproc_t) xdr_ypreq_nokey, (caddr_t) &req, (xdrproc_t) __xdr_ypresp_all, - (caddr_t) &status, RPCTIMEOUT); + (caddr_t) &data, RPCTIMEOUT); if (result != RPC_SUCCESS) { @@ -744,10 +748,10 @@ yp_all (const char *indomain, const char *inmap, clnt_destroy (clnt); - if (res == YPERR_SUCCESS && status != YP_NOMORE) + if (res == YPERR_SUCCESS && data.status != YP_NOMORE) { __set_errno (saved_errno); - return ypprot_err (status); + return ypprot_err (data.status); } ++try; } diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 5f1f61c088..9164affc9d 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,7 @@ +2004-05-25 Jakub Jelinek <jakub@redhat.com> + + * sysdeps/unix/sysv/linux/aio_misc.h: New file. + 2004-05-21 Jakub Jelinek <jakub@redhat.com> * sysdeps/pthread/pthread_cond_wait.c (__pthread_cond_wait): Compare diff --git a/nptl/sysdeps/unix/sysv/linux/aio_misc.h b/nptl/sysdeps/unix/sysv/linux/aio_misc.h new file mode 100644 index 0000000000..7b0bac75f2 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/aio_misc.h @@ -0,0 +1,67 @@ +/* Copyright (C) 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _AIO_MISC_H +# include_next <aio_misc.h> +# include <signal.h> +# include <sysdep.h> +# include <pthread.h> + +# define aio_start_notify_thread __aio_start_notify_thread +# define aio_create_helper_thread __aio_create_helper_thread + +extern inline void +__aio_start_notify_thread (void) +{ + sigset_t ss; + sigemptyset (&ss); + INTERNAL_SYSCALL_DECL (err); + INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, NULL, _NSIG / 8); +} + +extern inline int +__aio_create_helper_thread (pthread_t *threadp, void *(*tf) (void *), void *arg) +{ + pthread_attr_t attr; + + /* Make sure the thread is created detached. */ + pthread_attr_init (&attr); + pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); + + /* The helper thread needs only very little resources. */ + (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN); + + /* Block all signals in the helper thread. To do this thoroughly we + temporarily have to block all signals here. */ + sigset_t ss; + sigset_t oss; + sigfillset (&ss); + INTERNAL_SYSCALL_DECL (err); + INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, &oss, _NSIG / 8); + + int ret = pthread_create (threadp, &attr, tf, arg); + + /* Restore the signal mask. */ + INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &oss, NULL, + _NSIG / 8); + + (void) pthread_attr_destroy (&attr); + return ret; +} +#endif diff --git a/sysdeps/powerpc/fpu/Makefile b/sysdeps/powerpc/fpu/Makefile index bf2ed92e7b..d0fe4a8ba1 100644 --- a/sysdeps/powerpc/fpu/Makefile +++ b/sysdeps/powerpc/fpu/Makefile @@ -1,3 +1,6 @@ ifeq ($(subdir),math) libm-support += fenv_const fe_nomask t_sqrt + +# libm needs ld.so to access dl_hwcap +$(objpfx)libm.so: $(elfobjdir)/ld.so endif diff --git a/sysdeps/powerpc/fpu/bits/mathinline.h b/sysdeps/powerpc/fpu/bits/mathinline.h index e692df9b1a..d9206d4fac 100644 --- a/sysdeps/powerpc/fpu/bits/mathinline.h +++ b/sysdeps/powerpc/fpu/bits/mathinline.h @@ -121,4 +121,56 @@ fdimf (float __x, float __y) __THROW #endif /* __USE_ISOC99 */ #endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */ + +/* This code is used internally in the GNU libc. */ +# ifdef __LIBC_INTERNAL_MATH_INLINES + +#include <sysdep.h> +#include <ldsodefs.h> +#include <dl-procinfo.h> + +extern double __slow_ieee754_sqrt (double); +__MATH_INLINE double +__ieee754_sqrt (double __x) +{ + double __z; + + /* If the CPU is 64-bit we can use the optional FP instructions we. */ + if ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0) + { + /* Volatile is required to prevent the compiler from moving the + fsqrt instruction above the branch. */ + __asm __volatile ( + " fsqrt %0,%1\n" + : "=f" (__z) + : "f" (__x)); + } + else + __z = __slow_ieee754_sqrt(__x); + + return __z; +} + +extern float __slow_ieee754_sqrtf (float); +__MATH_INLINE float +__ieee754_sqrtf (float __x) +{ + float __z; + + /* If the CPU is 64-bit we can use the optional FP instructions we. */ + if ((GLRO(dl_hwcap) & PPC_FEATURE_64) != 0) + { + /* Volatile is required to prevent the compiler from moving the + fsqrts instruction above the branch. */ + __asm __volatile ( + " fsqrts %0,%1\n" + : "=f" (__z) + : "f" (__x)); + } + else + __z = __slow_ieee754_sqrtf(__x); + + return __z; +} +# endif /* __LIBC_INTERNAL_MATH_INLINES */ #endif /* __GNUC__ && !_SOFT_FLOAT */ diff --git a/sysdeps/powerpc/fpu/e_sqrt.c b/sysdeps/powerpc/fpu/e_sqrt.c index 9416ea60c8..eb9984d0a1 100644 --- a/sysdeps/powerpc/fpu/e_sqrt.c +++ b/sysdeps/powerpc/fpu/e_sqrt.c @@ -1 +1,185 @@ -/* __ieee754_sqrt is in w_sqrt.c */ +/* Double-precision floating point square root. + Copyright (C) 1997, 2002, 2003, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math.h> +#include <math_private.h> +#include <fenv_libc.h> +#include <inttypes.h> + +#include <sysdep.h> +#include <ldsodefs.h> +#include <dl-procinfo.h> + +static const double almost_half = 0.5000000000000001; /* 0.5 + 2^-53 */ +static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 }; +static const ieee_float_shape_type a_inf = {.word = 0x7f800000 }; +static const float two108 = 3.245185536584267269e+32; +static const float twom54 = 5.551115123125782702e-17; +extern const float __t_sqrt[1024]; + +/* The method is based on a description in + Computation of elementary functions on the IBM RISC System/6000 processor, + P. W. Markstein, IBM J. Res. Develop, 34(1) 1990. + Basically, it consists of two interleaved Newton-Rhapson approximations, + one to find the actual square root, and one to find its reciprocal + without the expense of a division operation. The tricky bit here + is the use of the POWER/PowerPC multiply-add operation to get the + required accuracy with high speed. + + The argument reduction works by a combination of table lookup to + obtain the initial guesses, and some careful modification of the + generated guesses (which mostly runs on the integer unit, while the + Newton-Rhapson is running on the FPU). */ + +#ifdef __STDC__ +double +__slow_ieee754_sqrt (double x) +#else +double +__slow_ieee754_sqrt (x) + double x; +#endif +{ + const float inf = a_inf.value; + + if (x > 0) + { + /* schedule the EXTRACT_WORDS to get separation between the store + and the load. */ + ieee_double_shape_type ew_u; + ieee_double_shape_type iw_u; + ew_u.value = (x); + if (x != inf) + { + /* Variables named starting with 's' exist in the + argument-reduced space, so that 2 > sx >= 0.5, + 1.41... > sg >= 0.70.., 0.70.. >= sy > 0.35... . + Variables named ending with 'i' are integer versions of + floating-point values. */ + double sx; /* The value of which we're trying to find the + square root. */ + double sg, g; /* Guess of the square root of x. */ + double sd, d; /* Difference between the square of the guess and x. */ + double sy; /* Estimate of 1/2g (overestimated by 1ulp). */ + double sy2; /* 2*sy */ + double e; /* Difference between y*g and 1/2 (se = e * fsy). */ + double shx; /* == sx * fsg */ + double fsg; /* sg*fsg == g. */ + fenv_t fe; /* Saved floating-point environment (stores rounding + mode and whether the inexact exception is + enabled). */ + uint32_t xi0, xi1, sxi, fsgi; + const float *t_sqrt; + + fe = fegetenv_register (); + /* complete the EXTRACT_WORDS (xi0,xi1,x) operation. */ + xi0 = ew_u.parts.msw; + xi1 = ew_u.parts.lsw; + relax_fenv_state (); + sxi = (xi0 & 0x3fffffff) | 0x3fe00000; + /* schedule the INSERT_WORDS (sx, sxi, xi1) to get separation + between the store and the load. */ + iw_u.parts.msw = sxi; + iw_u.parts.lsw = xi1; + t_sqrt = __t_sqrt + (xi0 >> (52 - 32 - 8 - 1) & 0x3fe); + sg = t_sqrt[0]; + sy = t_sqrt[1]; + /* complete the INSERT_WORDS (sx, sxi, xi1) operation. */ + sx = iw_u.value; + + /* Here we have three Newton-Rhapson iterations each of a + division and a square root and the remainder of the + argument reduction, all interleaved. */ + sd = -(sg * sg - sx); + fsgi = (xi0 + 0x40000000) >> 1 & 0x7ff00000; + sy2 = sy + sy; + sg = sy * sd + sg; /* 16-bit approximation to sqrt(sx). */ + + /* schedule the INSERT_WORDS (fsg, fsgi, 0) to get separation + between the store and the load. */ + INSERT_WORDS (fsg, fsgi, 0); + iw_u.parts.msw = fsgi; + iw_u.parts.lsw = (0); + e = -(sy * sg - almost_half); + sd = -(sg * sg - sx); + if ((xi0 & 0x7ff00000) == 0) + goto denorm; + sy = sy + e * sy2; + sg = sg + sy * sd; /* 32-bit approximation to sqrt(sx). */ + sy2 = sy + sy; + /* complete the INSERT_WORDS (fsg, fsgi, 0) operation. */ + fsg = iw_u.value; + e = -(sy * sg - almost_half); + sd = -(sg * sg - sx); + sy = sy + e * sy2; + shx = sx * fsg; + sg = sg + sy * sd; /* 64-bit approximation to sqrt(sx), + but perhaps rounded incorrectly. */ + sy2 = sy + sy; + g = sg * fsg; + e = -(sy * sg - almost_half); + d = -(g * sg - shx); + sy = sy + e * sy2; + fesetenv_register (fe); + return g + sy * d; + denorm: + /* For denormalised numbers, we normalise, calculate the + square root, and return an adjusted result. */ + fesetenv_register (fe); + return __slow_ieee754_sqrt (x * two108) * twom54; + } + } + else if (x < 0) + { + /* For some reason, some PowerPC32 processors don't implement + FE_INVALID_SQRT. */ +#ifdef FE_INVALID_SQRT + feraiseexcept (FE_INVALID_SQRT); + if (!fetestexcept (FE_INVALID)) +#endif + feraiseexcept (FE_INVALID); + x = a_nan.value; + } + return f_wash (x); +} + +#ifdef __STDC__ +double +__ieee754_sqrt (double x) +#else +double +__ieee754_sqrt (x) + double x; +#endif +{ + double z; + + /* If the CPU is 64-bit we can use the optional FP instructions we. */ + if ((GLRO (dl_hwcap) & PPC_FEATURE_64) != 0) + { + /* Volatile is required to prevent the compiler from moving the + fsqrt instruction above the branch. */ + __asm __volatile (" fsqrt %0,%1\n" + :"=f" (z):"f" (x)); + } + else + z = __slow_ieee754_sqrt (x); + + return z; +} diff --git a/sysdeps/powerpc/fpu/e_sqrtf.c b/sysdeps/powerpc/fpu/e_sqrtf.c index 01c76d6757..9b701012af 100644 --- a/sysdeps/powerpc/fpu/e_sqrtf.c +++ b/sysdeps/powerpc/fpu/e_sqrtf.c @@ -1 +1,162 @@ -/* __ieee754_sqrtf is in w_sqrtf.c */ +/* Single-precision floating point square root. + Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math.h> +#include <math_private.h> +#include <fenv_libc.h> +#include <inttypes.h> + +#include <sysdep.h> +#include <ldsodefs.h> +#include <dl-procinfo.h> + +static const float almost_half = 0.50000006; /* 0.5 + 2^-24 */ +static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 |
