1996-03-05 21:41:30 +00:00
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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/*
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* from: @(#)fdlibm.h 5.1 93/09/24
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* $Id$
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*/
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#ifndef _MATH_PRIVATE_H_
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#define _MATH_PRIVATE_H_
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#include <machine/endian.h>
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#include <sys/types.h>
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/* The original fdlibm code used statements like:
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n0 = ((*(int*)&one)>>29)^1; * index of high word *
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ix0 = *(n0+(int*)&x); * high word of x *
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ix1 = *((1-n0)+(int*)&x); * low word of x *
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to dig two 32 bit words out of the 64 bit IEEE floating point
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value. That is non-ANSI, and, moreover, the gcc instruction
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scheduler gets it wrong. We instead use the following macros.
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Unlike the original code, we determine the endianness at compile
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time, not at run time; I don't see much benefit to selecting
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endianness at run time. */
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/* A union which permits us to convert between a double and two 32 bit
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ints. */
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#if BYTE_ORDER == BIG_ENDIAN
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typedef union
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{
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double value;
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struct
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{
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u_int32_t msw;
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u_int32_t lsw;
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} parts;
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} ieee_double_shape_type;
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#endif
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#if BYTE_ORDER == LITTLE_ENDIAN
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typedef union
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{
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double value;
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struct
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{
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u_int32_t lsw;
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u_int32_t msw;
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} parts;
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} ieee_double_shape_type;
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#endif
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/* Get two 32 bit ints from a double. */
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#define EXTRACT_WORDS(ix0,ix1,d) \
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do { \
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ieee_double_shape_type ew_u; \
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ew_u.value = (d); \
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(ix0) = ew_u.parts.msw; \
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(ix1) = ew_u.parts.lsw; \
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} while (0)
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/* Get the more significant 32 bit int from a double. */
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#define GET_HIGH_WORD(i,d) \
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do { \
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ieee_double_shape_type gh_u; \
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gh_u.value = (d); \
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(i) = gh_u.parts.msw; \
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} while (0)
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/* Get the less significant 32 bit int from a double. */
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#define GET_LOW_WORD(i,d) \
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do { \
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ieee_double_shape_type gl_u; \
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gl_u.value = (d); \
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(i) = gl_u.parts.lsw; \
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} while (0)
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/* Set a double from two 32 bit ints. */
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#define INSERT_WORDS(d,ix0,ix1) \
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do { \
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ieee_double_shape_type iw_u; \
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iw_u.parts.msw = (ix0); \
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iw_u.parts.lsw = (ix1); \
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(d) = iw_u.value; \
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} while (0)
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/* Set the more significant 32 bits of a double from an int. */
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#define SET_HIGH_WORD(d,v) \
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do { \
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ieee_double_shape_type sh_u; \
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sh_u.value = (d); \
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sh_u.parts.msw = (v); \
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(d) = sh_u.value; \
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} while (0)
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/* Set the less significant 32 bits of a double from an int. */
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#define SET_LOW_WORD(d,v) \
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do { \
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ieee_double_shape_type sl_u; \
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sl_u.value = (d); \
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sl_u.parts.lsw = (v); \
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(d) = sl_u.value; \
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} while (0)
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/* A union which permits us to convert between a float and a 32 bit
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int. */
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typedef union
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{
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float value;
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u_int32_t word;
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} ieee_float_shape_type;
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/* Get a 32 bit int from a float. */
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#define GET_FLOAT_WORD(i,d) \
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do { \
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ieee_float_shape_type gf_u; \
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gf_u.value = (d); \
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(i) = gf_u.word; \
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} while (0)
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/* Set a float from a 32 bit int. */
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#define SET_FLOAT_WORD(d,i) \
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do { \
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ieee_float_shape_type sf_u; \
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sf_u.word = (i); \
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(d) = sf_u.value; \
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} while (0)
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Thu May 30 11:24:05 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* po/header.pot: Replace with exact boilerplate pinard dictates.
* sysdeps/i386/strtok.S (Lillegal_argument): Remove this code to set
errno and the check that jumped to it.
* sysdeps/mach/hurd/Makefile (errnos.d): Use $(sed-remove-objpfx).
Thu May 30 03:21:57 1996 Ulrich Drepper <drepper@cygnus.com>
* FAQ: Document need of gperf program for developers.
* elf/elf.h: Fix typos in comments.
* libio/stdio.h [!__STRICT_ANSI__ || _POSIX_SOURCE]: Add
prototypes for `ctermid' and `cuserid'.
* locale/programs/locale.c: Switch to user selected locale
before printing variables.
* math/Makefile [$(long-double-fcts)==yes]: Define long-m-routines
and long-c-routines. Only if the `long double' data type is
available we need to compile the functions.
(libm-routines): Add $(long-m-routines).
(routines): Remove isinfl, isnanl. Use new file s_isinfl and
s_isnanl instead if `long double' is available.
* math/math.h: Include <mathcalls.h> again to define `long double'
functions.
* math/math_private.h: Define data types, prototypes and access
macros for `long double'.
* stdlib/stdlib.h: Add prototypes for `strtoll' and `strtoull'.
[GCC2 && OPTIMIZE]: Define strto{,u}ll as inline function which
calls __strto{,u}q_internal.
* stdlib/strfmon.c: Replace PTR by `void *'.
* stdlib/strtoq.c: Define strtoll as weak alias.
* stdlib/strtouq.c: Define strtoull as weak alias.
* string/tester.c: Correct `strsep' test.
* sysdeps/generic/strsep.c: Make compatible with BSD version.
Trailing characters of skip set are not skipped. In this case
empty tokens are returned.
* sysdeps/i386/isinfl.c, sysdeps/i386/isnanl.c,
sysdeps/ieee754/isinf.c, sysdeps/ieee754/isinfl.c,
sysdeps/ieee754/isnan.c, sysdeps/ieee754/isnanl.c: Removed. We
now use the versions part of libm.
* sysdeps/i386/strsep.S: Removed. Generic C version is of
similar speed.
* sysdeps/i386/strtok.S: Remove support for `strsep'.
* sysdeps/libm-i387/e_acosl.S, sysdeps/libm-i387/s_ceill.S,
sysdeps/libm-i387/s_copysignl.S, sysdeps/libm-i387/s_finitel.S,
sysdeps/libm-i387/s_floorl.S, sysdeps/libm-i387/s_isinfl.c,
sysdeps/libm-i387/s_isnanl.c, sysdeps/libm-i387/s_nextafterl.c,
sysdeps/libm-i387/s_rintl.S, sysdeps/libm-i387/s_significandl.S:
New i387 specific math functions implementing `long double'
versions.
* sysdeps/libm-ieee754/s_ceill.c,
sysdeps/libm-ieee754/s_copysignl.c,
sysdeps/libm-ieee754/s_fabsl.c, sysdeps/libm-ieee754/s_finitel.c,
sysdeps/libm-ieee754/s_floorl.c, sysdeps/libm-ieee754/s_isinfl.c,
sysdeps/libm-ieee754/s_isnanl.c,
sysdeps/libm-ieee754/s_nextafterl.c,
sysdeps/libm-ieee754/s_rintl.c, sysdeps/libm-ieee754/s_scalbnl.c,
sysdeps/libm-ieee754/s_significandl.c: New generic `long double'
versions of libm functions.
* sysdeps/libm-i387/e_exp.S: Add a few comments to explain the
Intel FPU nonsense.
* sysdeps/libm-i387/s_ceil.S, sysdeps/libm-i387/s_ceilf.S,
sysdeps/libm-i387/s_floor.S, sysdeps/libm-i387/s_floorf.S: Correct
handling of local variables. The old version created a stack
frame but stored the values outside.
* sysdeps/libm-ieee754/s_isinf.c, sysdeps/libm-ieee754/s_isnan.c
[!NO_LONG_DOUBLE]: Define alias with `long double' versions name.
* login/pututline_r.c: Include sys/stat.h. Fix typos.
according to currently used locale for category LC_CTYPE by
inet_nsap_ntoa. Now in <arpa/inet.h>.
_IO_dup2 to contain complete parameter list.
1996-05-30 16:12:42 +00:00
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/* A union which permits us to convert between a long double and
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three 32 bit ints. */
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#if BYTE_ORDER == BIG_ENDIAN
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typedef union
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{
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long double value;
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struct
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{
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unsigned int sign_exponent:16;
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unsigned int empty:16;
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u_int32_t msw;
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u_int32_t lsw;
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} parts;
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} ieee_long_double_shape_type;
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#endif
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#if BYTE_ORDER == LITTLE_ENDIAN
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typedef union
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{
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long double value;
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struct
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{
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u_int32_t lsw;
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u_int32_t msw;
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unsigned int sign_exponent:16;
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unsigned int empty:16;
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} parts;
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} ieee_long_double_shape_type;
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#endif
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/* Get three 32 bit ints from a double. */
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#define GET_LDOUBLE_WORDS(exp,ix0,ix1,d) \
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do { \
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ieee_long_double_shape_type ew_u; \
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ew_u.value = (d); \
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(exp) = ew_u.parts.sign_exponent; \
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(ix0) = ew_u.parts.msw; \
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(ix1) = ew_u.parts.lsw; \
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} while (0)
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/* Set a double from two 32 bit ints. */
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#define SET_LDOUBLE_WORDS(d,exp,ix0,ix1) \
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do { \
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ieee_long_double_shape_type iw_u; \
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iw_u.parts.sign_exponent = (exp); \
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iw_u.parts.msw = (ix0); \
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iw_u.parts.lsw = (ix1); \
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(d) = iw_u.value; \
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} while (0)
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/* Set the more significant 32 bits of a long double mantissa from an int. */
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#define SET_LDOUBLE_MSW(d,v) \
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do { \
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ieee_long_double_shape_type sh_u; \
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sh_u.value = (d); \
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sh_u.parts.msw = (v); \
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(d) = sh_u.value; \
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} while (0)
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/* Get int from the exponent of a long double. */
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#define GET_LDOUBLE_EXP(exp,d) \
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do { \
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ieee_long_double_shape_type ge_u; \
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ge_u.value = (d);
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(exp) = ge_u.parts.sign_exponent; \
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} while (0)
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/* Set exponent of a long double from an int. */
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#define SET_LDOUBLE_EXP(d,exp) \
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do { \
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ieee_long_double_shape_type se_u; \
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se_u.value = (d); \
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se_u.parts.sign_exponent = (exp); \
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(d) = se_u.value; \
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} while (0)
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1996-03-05 21:41:30 +00:00
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/* ieee style elementary functions */
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extern double __ieee754_sqrt __P((double));
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extern double __ieee754_acos __P((double));
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extern double __ieee754_acosh __P((double));
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extern double __ieee754_log __P((double));
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extern double __ieee754_atanh __P((double));
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extern double __ieee754_asin __P((double));
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extern double __ieee754_atan2 __P((double,double));
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extern double __ieee754_exp __P((double));
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extern double __ieee754_cosh __P((double));
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extern double __ieee754_fmod __P((double,double));
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extern double __ieee754_pow __P((double,double));
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extern double __ieee754_lgamma_r __P((double,int *));
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extern double __ieee754_gamma_r __P((double,int *));
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extern double __ieee754_lgamma __P((double));
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extern double __ieee754_gamma __P((double));
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extern double __ieee754_log10 __P((double));
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extern double __ieee754_sinh __P((double));
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extern double __ieee754_hypot __P((double,double));
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extern double __ieee754_j0 __P((double));
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extern double __ieee754_j1 __P((double));
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extern double __ieee754_y0 __P((double));
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extern double __ieee754_y1 __P((double));
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extern double __ieee754_jn __P((int,double));
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extern double __ieee754_yn __P((int,double));
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extern double __ieee754_remainder __P((double,double));
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extern int __ieee754_rem_pio2 __P((double,double*));
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extern double __ieee754_scalb __P((double,double));
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/* fdlibm kernel function */
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extern double __kernel_standard __P((double,double,int));
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extern double __kernel_sin __P((double,double,int));
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extern double __kernel_cos __P((double,double));
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extern double __kernel_tan __P((double,double,int));
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extern int __kernel_rem_pio2 __P((double*,double*,int,int,int,const int*));
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/* ieee style elementary float functions */
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extern float __ieee754_sqrtf __P((float));
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extern float __ieee754_acosf __P((float));
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extern float __ieee754_acoshf __P((float));
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extern float __ieee754_logf __P((float));
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extern float __ieee754_atanhf __P((float));
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extern float __ieee754_asinf __P((float));
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extern float __ieee754_atan2f __P((float,float));
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extern float __ieee754_expf __P((float));
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extern float __ieee754_coshf __P((float));
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extern float __ieee754_fmodf __P((float,float));
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extern float __ieee754_powf __P((float,float));
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extern float __ieee754_lgammaf_r __P((float,int *));
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extern float __ieee754_gammaf_r __P((float,int *));
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extern float __ieee754_lgammaf __P((float));
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extern float __ieee754_gammaf __P((float));
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extern float __ieee754_log10f __P((float));
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extern float __ieee754_sinhf __P((float));
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extern float __ieee754_hypotf __P((float,float));
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extern float __ieee754_j0f __P((float));
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extern float __ieee754_j1f __P((float));
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extern float __ieee754_y0f __P((float));
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extern float __ieee754_y1f __P((float));
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extern float __ieee754_jnf __P((int,float));
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extern float __ieee754_ynf __P((int,float));
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extern float __ieee754_remainderf __P((float,float));
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extern int __ieee754_rem_pio2f __P((float,float*));
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extern float __ieee754_scalbf __P((float,float));
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/* float versions of fdlibm kernel functions */
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extern float __kernel_sinf __P((float,float,int));
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extern float __kernel_cosf __P((float,float));
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extern float __kernel_tanf __P((float,float,int));
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extern int __kernel_rem_pio2f __P((float*,float*,int,int,int,const int*));
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Thu May 30 11:24:05 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* po/header.pot: Replace with exact boilerplate pinard dictates.
* sysdeps/i386/strtok.S (Lillegal_argument): Remove this code to set
errno and the check that jumped to it.
* sysdeps/mach/hurd/Makefile (errnos.d): Use $(sed-remove-objpfx).
Thu May 30 03:21:57 1996 Ulrich Drepper <drepper@cygnus.com>
* FAQ: Document need of gperf program for developers.
* elf/elf.h: Fix typos in comments.
* libio/stdio.h [!__STRICT_ANSI__ || _POSIX_SOURCE]: Add
prototypes for `ctermid' and `cuserid'.
* locale/programs/locale.c: Switch to user selected locale
before printing variables.
* math/Makefile [$(long-double-fcts)==yes]: Define long-m-routines
and long-c-routines. Only if the `long double' data type is
available we need to compile the functions.
(libm-routines): Add $(long-m-routines).
(routines): Remove isinfl, isnanl. Use new file s_isinfl and
s_isnanl instead if `long double' is available.
* math/math.h: Include <mathcalls.h> again to define `long double'
functions.
* math/math_private.h: Define data types, prototypes and access
macros for `long double'.
* stdlib/stdlib.h: Add prototypes for `strtoll' and `strtoull'.
[GCC2 && OPTIMIZE]: Define strto{,u}ll as inline function which
calls __strto{,u}q_internal.
* stdlib/strfmon.c: Replace PTR by `void *'.
* stdlib/strtoq.c: Define strtoll as weak alias.
* stdlib/strtouq.c: Define strtoull as weak alias.
* string/tester.c: Correct `strsep' test.
* sysdeps/generic/strsep.c: Make compatible with BSD version.
Trailing characters of skip set are not skipped. In this case
empty tokens are returned.
* sysdeps/i386/isinfl.c, sysdeps/i386/isnanl.c,
sysdeps/ieee754/isinf.c, sysdeps/ieee754/isinfl.c,
sysdeps/ieee754/isnan.c, sysdeps/ieee754/isnanl.c: Removed. We
now use the versions part of libm.
* sysdeps/i386/strsep.S: Removed. Generic C version is of
similar speed.
* sysdeps/i386/strtok.S: Remove support for `strsep'.
* sysdeps/libm-i387/e_acosl.S, sysdeps/libm-i387/s_ceill.S,
sysdeps/libm-i387/s_copysignl.S, sysdeps/libm-i387/s_finitel.S,
sysdeps/libm-i387/s_floorl.S, sysdeps/libm-i387/s_isinfl.c,
sysdeps/libm-i387/s_isnanl.c, sysdeps/libm-i387/s_nextafterl.c,
sysdeps/libm-i387/s_rintl.S, sysdeps/libm-i387/s_significandl.S:
New i387 specific math functions implementing `long double'
versions.
* sysdeps/libm-ieee754/s_ceill.c,
sysdeps/libm-ieee754/s_copysignl.c,
sysdeps/libm-ieee754/s_fabsl.c, sysdeps/libm-ieee754/s_finitel.c,
sysdeps/libm-ieee754/s_floorl.c, sysdeps/libm-ieee754/s_isinfl.c,
sysdeps/libm-ieee754/s_isnanl.c,
sysdeps/libm-ieee754/s_nextafterl.c,
sysdeps/libm-ieee754/s_rintl.c, sysdeps/libm-ieee754/s_scalbnl.c,
sysdeps/libm-ieee754/s_significandl.c: New generic `long double'
versions of libm functions.
* sysdeps/libm-i387/e_exp.S: Add a few comments to explain the
Intel FPU nonsense.
* sysdeps/libm-i387/s_ceil.S, sysdeps/libm-i387/s_ceilf.S,
sysdeps/libm-i387/s_floor.S, sysdeps/libm-i387/s_floorf.S: Correct
handling of local variables. The old version created a stack
frame but stored the values outside.
* sysdeps/libm-ieee754/s_isinf.c, sysdeps/libm-ieee754/s_isnan.c
[!NO_LONG_DOUBLE]: Define alias with `long double' versions name.
* login/pututline_r.c: Include sys/stat.h. Fix typos.
according to currently used locale for category LC_CTYPE by
inet_nsap_ntoa. Now in <arpa/inet.h>.
_IO_dup2 to contain complete parameter list.
1996-05-30 16:12:42 +00:00
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/* ieee style elementary long double functions */
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extern long double __ieee754_sqrtl __P((long double));
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extern long double __ieee754_acosl __P((long double));
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extern long double __ieee754_acoshl __P((long double));
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extern long double __ieee754_logl __P((long double));
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extern long double __ieee754_atanhl __P((long double));
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extern long double __ieee754_asinl __P((long double));
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extern long double __ieee754_atan2l __P((long double,long double));
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extern long double __ieee754_expl __P((long double));
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extern long double __ieee754_coshl __P((long double));
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extern long double __ieee754_fmodl __P((long double,long double));
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extern long double __ieee754_powl __P((long double,long double));
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extern long double __ieee754_lgammal_r __P((long double,int *));
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extern long double __ieee754_gammal_r __P((long double,int *));
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extern long double __ieee754_lgammal __P((long double));
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extern long double __ieee754_gammal __P((long double));
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extern long double __ieee754_log10l __P((long double));
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extern long double __ieee754_sinhl __P((long double));
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extern long double __ieee754_hypotl __P((long double,long double));
|
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extern long double __ieee754_j0l __P((long double));
|
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extern long double __ieee754_j1l __P((long double));
|
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extern long double __ieee754_y0l __P((long double));
|
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extern long double __ieee754_y1l __P((long double));
|
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extern long double __ieee754_jnl __P((int,long double));
|
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extern long double __ieee754_ynl __P((int,long double));
|
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extern long double __ieee754_remainderl __P((long double,long double));
|
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extern int __ieee754_rem_pio2l __P((long double,long double*));
|
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extern long double __ieee754_scalbl __P((long double,long double));
|
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/* long double versions of fdlibm kernel functions */
|
|
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extern long double __kernel_sinl __P((long double,long double,int));
|
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|
extern long double __kernel_cosl __P((long double,long double));
|
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|
extern long double __kernel_tanl __P((long double,long double,int));
|
|
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|
|
extern int __kernel_rem_pio2l __P((long double*,long double*,int,int,
|
|
|
|
|
int,const int*));
|
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|
1996-03-05 21:41:30 +00:00
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#endif /* _MATH_PRIVATE_H_ */
|