diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-04-12 23:41:36 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1997-04-12 23:41:36 +0000 |
commit | 6355131153fd618d50286f0f24ac49b405d03ee5 (patch) | |
tree | 4927449e56ae721b2ddb0d42efcce211b6068004 /math/fenv.h | |
parent | Update. (diff) | |
download | glibc-6355131153fd618d50286f0f24ac49b405d03ee5.tar.gz glibc-6355131153fd618d50286f0f24ac49b405d03ee5.tar.bz2 glibc-6355131153fd618d50286f0f24ac49b405d03ee5.zip |
Update.
1997-04-13 01:06 Ulrich Drepper <drepper@cygnus.com>
* isomac.c: Improve messages.
* math/Makefile (libm-calls): Add s_nearbyint, s_catan, s_casin,
s_ccos, s_csin, s_ctan, s_ctanh, s_cacos, s_casinh, s_cacosh,
s_catanh, s_csqrt, and s_cpow.
* math/libm-test.c: New functions ccos_test, cacos_test, cacosh_test,
casin_test, casinh_test, catan_test, catanh_test, ctanh_test,
csqrt_test, cpow_test, rint_test.
* math/math.h: Include new header mathbits.h which defines some
more (system dependent) types and some macros.
(isfinite): Use __finite instead of fpclassify.
* sysdeps/generic/mathbits.h: New file.
* sysdeps/i386/fpu/mathbits.h: New file.
* sysdeps/i386/huge_val.h: Don't define INFINITY.
* sysdeps/ieee754/huge_val.h: Likewise.
* sysdeps/m68k/huge_val.h: Likewise.
* sysdeps/i386/fpu/fenvbits.h: Define FE_NOMASK_ENV.
* sysdeps/i386/fpu/fesetenv.c: Handle FE_NOMASK_ENV.
* math/complex.h (_Imaginary_I): Define correctly. I misread the
standard first.
* sysdeps/libm-i387/s_finite.S: Optimized rewrite.
* sysdeps/libm-i387/s_finitef.S: Likewise.
* sysdeps/libm-i387/s_finitel.S: Likewise.
Provided by Joe Keane <jgk@jgk.org>.
* sysdeps/libm-i387/s_nearbyint.S: New file.
* sysdeps/libm-i387/s_nearbyintf.S: New file.
* sysdeps/libm-i387/s_nearbyintl.S: New file.
* sysdeps/libm-ieee754/s_nearbyint.S: New file.
* sysdeps/libm-ieee754/s_nearbyintf.S: New file.
* sysdeps/libm-ieee754/s_nearbyintl.S: New file.
* sysdeps/libm-ieee754/s_cacos.c: New file.
* sysdeps/libm-ieee754/s_cacosf.c: New file.
* sysdeps/libm-ieee754/s_cacosl.c: New file.
* sysdeps/libm-ieee754/s_cacosh.c: New file.
* sysdeps/libm-ieee754/s_cacoshf.c: New file.
* sysdeps/libm-ieee754/s_cacoshl.c: New file.
* sysdeps/libm-ieee754/s_casin.c: New file.
* sysdeps/libm-ieee754/s_casinf.c: New file.
* sysdeps/libm-ieee754/s_casinl.c: New file.
* sysdeps/libm-ieee754/s_casinh.c: New file.
* sysdeps/libm-ieee754/s_casinhf.c: New file.
* sysdeps/libm-ieee754/s_casinhl.c: New file.
* sysdeps/libm-ieee754/s_catan.c: New file.
* sysdeps/libm-ieee754/s_catanf.c: New file.
* sysdeps/libm-ieee754/s_catanl.c: New file.
* sysdeps/libm-ieee754/s_catanh.c: New file.
* sysdeps/libm-ieee754/s_catanhf.c: New file.
* sysdeps/libm-ieee754/s_catanhl.c: New file.
* sysdeps/libm-ieee754/s_ccos.c: New file.
* sysdeps/libm-ieee754/s_ccosf.c: New file.
* sysdeps/libm-ieee754/s_ccosl.c: New file.
* sysdeps/libm-ieee754/s_cpow.c: New file.
* sysdeps/libm-ieee754/s_cpowf.c: New file.
* sysdeps/libm-ieee754/s_cpowl.c: New file.
* sysdeps/libm-ieee754/s_csin.c: New file.
* sysdeps/libm-ieee754/s_csinf.c: New file.
* sysdeps/libm-ieee754/s_csinl.c: New file.
* sysdeps/libm-ieee754/s_csqrt.c: New file.
* sysdeps/libm-ieee754/s_csqrtf.c: New file.
* sysdeps/libm-ieee754/s_csqrtl.c: New file.
* sysdeps/libm-ieee754/s_ctan.c: New file.
* sysdeps/libm-ieee754/s_ctanf.c: New file.
* sysdeps/libm-ieee754/s_ctanl.c: New file.
* sysdeps/libm-ieee754/s_ctanh.c: New file.
* sysdeps/libm-ieee754/s_ctanhf.c: New file.
* sysdeps/libm-ieee754/s_ctanhl.c: New file.
* time/strftime.c (memset_space): Increment pointer.
* time/strptime.c: Interpret year number 00-59 as 2000--2059.
Patches by Karl Heuer <kwzh@gnu.ai.mit.edu>.
1997-04-11 11:57 Miguel de Icaza <miguel@nuclecu.unam.mx>
* sysdeps/unix/sysv/linux/sparc/syscalls.list: Remove fork,
pipe, syscall.
1997-04-05 00:57 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/s_remquo.c: Change algorithm, although
probably still wrong.
* sysdeps/libm-ieee754/s_remquof.c: Likewise.
* sysdeps/libm-ieee754/s_remquol.c: Likewise.
* math/libm-test.c (remquo_test): Corrected.
1997-04-11 00:01 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h (__rinttol, rinttol): New inline.
* sysdeps/m68k/fpu/s_rinttol.c: New file.
* sysdeps/m68k/fpu/s_rinttoll.c: New file.
* math/libm-test.c (remquo_test): Use check_long to test the
quotient.
(cbrt_test): Add epsilons for long double.
1997-04-10 18:48 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* locale/localeinfo.h: Update declaration of _nl_current.
1997-04-11 11:27 Ulrich Drepper <drepper@cygnus.com>
* rellnsh-sh: Use explicitely /bin/pwd to find the external program.
* math/Makefile (headers): Add fenv.h and fenvbits.h.
(libm-support): Add s_rountol, s_roundtoll, fclrexcpt, fgetexcptflg,
fraiseexcpt, fsetexcptflg, ftestexcept, fegetround, fesetround,
fegetenv, feholdexcpt, fesetenv, feupdateenv.
(libm-calls): Add s_round.
* math/fenv.h: New file.
* math/libm-test.c: Correct tests for s_rinttol and s_rinttoll.
Add roundtol_check and roundtoll_check.
* math/math.h: Pretty printing.
* sysdeps/i386/fpu/fclrexcpt.c: New file.
* sysdeps/i386/fpu/fegetenv.c: New file.
* sysdeps/i386/fpu/fegetround.c: New file.
* sysdeps/i386/fpu/feholdexcpt.c: New file.
* sysdeps/i386/fpu/fenvbits.h: New file.
* sysdeps/i386/fpu/fesetenv.c: New file.
* sysdeps/i386/fpu/fesetround.c: New file.
* sysdeps/i386/fpu/fgetexcptflg.c: New file.
* sysdeps/i386/fpu/fraiseexcpt.c: New file.
* sysdeps/i386/fpu/fsetexcptflg.c: New file.
* sysdeps/i386/fpu/ftestexcept.c: New file.
* sysdeps/stub/fclrexcpt.c: New file.
* sysdeps/stub/fegetenv.c: New file.
* sysdeps/stub/fegetround.c: New file.
* sysdeps/stub/feholdexcpt.c: New file.
* sysdeps/stub/fenvbits.h: New file.
* sysdeps/stub/fesetenv.c: New file.
* sysdeps/stub/fesetround.c: New file.
* sysdeps/stub/fgetexcptflg.c: New file.
* sysdeps/stub/fraiseexcpt.c: New file.
* sysdeps/stub/fsetexcptflg.c: New file.
* sysdeps/stub/ftestexcept.c: New file.
* sysdeps/libm-i387/s_trunc.S: New file.
* sysdeps/libm-i387/s_truncf.S: New file.
* sysdeps/libm-i387/s_truncl.S: New file.
* sysdeps/libm-ieee754/s_round.c: New file.
* sysdeps/libm-ieee754/s_roundf.c: New file.
* sysdeps/libm-ieee754/s_roundl.c: New file.
* sysdeps/libm-ieee754/s_ccosh.c: Rewritten to use fpclassify.
* sysdeps/libm-ieee754/s_ccoshf.c: Likewise.
* sysdeps/libm-ieee754/s_ccoshl.c: Likewise.
* sysdeps/libm-ieee754/s_cexp.c: Likewise.
* sysdeps/libm-ieee754/s_cexpf.c: Likewise.
* sysdeps/libm-ieee754/s_cexpl.c: Likewise.
* sysdeps/libm-ieee754/s_clog.c: Likewise.
* sysdeps/libm-ieee754/s_clogf.c: Likewise.
* sysdeps/libm-ieee754/s_clogl.c: Likewise.
* sysdeps/libm-ieee754/s_csinh.c. Likewise.
* sysdeps/libm-ieee754/s_csinhf.c. Likewise.
* sysdeps/libm-ieee754/s_csinhl.c. Likewise.
* sysdeps/libm-ieee754/s_ceill.c: Corrected. The mantissa has only
63 bits.
* sysdeps/libm-ieee754/s_floorl.c: Likewise.
* po/pl.po: Updated.
* string/swab.c: Correctly handle array of odd length.
* sysdeps/generic/memmem.c: Update copyright.
1997-04-10 20:22 Ulrich Drepper <drepper@cygnus.com>
* hurd/Makefile (sunrpc-headers): Add clnt.h.
Proposed by Thomas Bushnell <thomas@gnu.ai.mit.edu>.
1997-04-09 14:21 Miguel de Icaza <miguel@nuclecu.unam.mx>
* sysdeps/sparc/dl-machine.h: Bug fix: I was not loading
the proper value from the GOT. Pass argument block to
init function.
* sysdeps/sparc/elf/start.c: Call atexit (_fini) after calling
_init ().
* sysdeps/sparc/fpu_control.h: Fix the FPU constants. I got them
wrong the first time.
* sysdeps/sparc/setjmp.S: PIC code was clobbering a callee saved
register.
* sysdeps/sparc/udiv_qrnnd.S: Add type @function.
* sysdeps/unix/sysv/linux/sparc/init-first.h: Linux/SPARC specific
SYSDEP_CALL_INIT.
* sysdeps/unix/sysv/linux/sparc/signum.h: Remove definition for
NSIG and duplicated SIGIOT.
1997-04-05 00:57 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/s_remquo.c: Change algorithm, although
probably still wrong.
* sysdeps/libm-ieee754/s_remquof.c: Likewise.
* sysdeps/libm-ieee754/s_remquol.c: Likewise.
* math/libm-test.c (remquo_test): Corrected.
1997-04-03 18:35 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makefile (parent-tests): New target to run the tests to that
they are executed even if some subdir tests have failed.
(tests): Depend on parent-tests instead of running the tests
directly.
1997-04-03 12:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
Clean up name space pollution in libnss_*.so:
* nis/nss_compat/compat-pwd.c, resolv/mapv4v6addr.h,
resolv/nss_dns/dns-host.c: Replace bzero by memset, bcopy by
memcpy and bcmp by memcmp to clean up namespace.
* nss/nss_db/db-XXX.c (internal_setent): Use __dbopen instead of
dbopen.
* nss/nss_db/db-alias.c (internal_setent): Likewise.
* nss/nss_db/db-netgrp.c (_nss_db_setnetgrent): Likewise.
* db/db/db.c [_LIBC]: Define __dbopen instead of dbopen and make
the latter a weak alias.
* db/db.h: Declare __dbopen.
* db/btree/btree.h [_LIBC]: Prepend __ to all mpool functions.
* db/mpool/mpool.c [_LIBC]: Define all external functions with __
prefix and make the old names weak aliases.
* db/mpool.h: Declare the new internal names.
1997-04-04 23:57 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* stdio-common/vfscanf.c: Fix scanning of hexadecimal fp number.
* stdio-common/tstscanf.c: Add test case for this.
1997-04-04 17:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/libm-test.c: Fix more typos.
1997-04-03 17:15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/libm-test.c (csinh_test): Fix test names.
(ccosh_test): Likewise.
* sysdeps/libm-ieee754/s_csinh.c: Use sinh function instead of
computing it directly.
* sysdeps/libm-ieee754/s_csinhf.c: Likewise.
* sysdeps/libm-ieee754/s_csinhl.c: Likewise.
* sysdeps/libm-ieee754/s_ccosh.c: Use cosh function instead of
computing it directly.
* sysdeps/libm-ieee754/s_ccoshf.c: Likewise.
* sysdeps/libm-ieee754/s_ccoshl.c: Likewise.
* sysdeps/libm-ieee754/s_cexp.c: Use internal exp function instead
of wrapper.
* sysdeps/libm-ieee754/s_cexpf.c: Likewise.
* sysdeps/libm-ieee754/s_cexpl.c: Likewise.
* sysdeps/m68k/fpu/s_cexp.c: Likewise. Correct handling of
special values. Avoid use of fsincos if all that is needed is the
quadrant.
* sysdeps/m68k/fpu/s_ccosh.c: New file.
* sysdeps/m68k/fpu/s_ccoshf.c: New file.
* sysdeps/m68k/fpu/s_ccoshl.c: New file.
* sysdeps/m68k/fpu/s_csinh.c: New file.
* sysdeps/m68k/fpu/s_csinhl.c: New file.
* sysdeps/m68k/fpu/s_csinhf.c: New file.
1997-04-03 10:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* manual/Makefile (dir-add.texi): Simplify.
* libio/genops.c (_IO_flush_all_linebuffered): Don't flush on
Diffstat (limited to 'math/fenv.h')
-rw-r--r-- | math/fenv.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/math/fenv.h b/math/fenv.h new file mode 100644 index 0000000000..c9a8a5c94b --- /dev/null +++ b/math/fenv.h @@ -0,0 +1,114 @@ +/* Copyright (C) 1997 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library 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. */ + +/* + * ISO C 9X 7.6: Floating-point environment <fenv.h> + */ + +#ifndef _FENV_H + +#define __FENV_H 1 +#include <features.h> + +/* Get the architecture dependend definitions. The following definitions + are expected to be done: + + fenv_t type for object representing an entire floating-point + environment + + FE_DFL_ENV macro of type pointer to fenv_t to be used as the argument + to functions taking an argument of type fenv_t; in this + case the default environment will be used + + fexcept_t type for object representing the floating-point exception + flags including status associated with the flags + + The following macros are defined iff the implementation supports this + kind of exception. + FE_INEXACT inxeact result + FE_DIVBYZERO devision by zero + FE_UNDERFLOW result not representable due to underflow + FE_OVERFLOW result not representable due to overflow + FE_INVALID invalid operation + + FE_ALL_EXCEPT bitwise OR of all supported exceptions + + The next macros are defined iff the appropriate rounding mode is + supported by the implementation. + FE_TONEAREST round to nearest + FE_UPWARD round toward +Inf + FE_DOWNWARD round toward -Inf + FE_TOWARDZERO round toward 0 +*/ +#include <fenvbits.h> + +__BEGIN_DECLS + +/* Floating-point exception handling. */ + +/* Clear the supported exceptions represented by EXCEPTS. */ +extern void feclearexcept __P ((int __excepts)); + +/* Store implementation-defined representation of the exception flags + indicated by EXCEPTS in the object pointed to by FLAGP. */ +extern void fegetexceptflag __P ((fexcept_t *__flagp, int __excepts)); + +/* Raise the supported exceptions represented by EXCEPTS. */ +extern void feraiseexcept __P ((int __excepts)); + +/* Set complete status for exceptions inidicated by EXCEPTS according to + the representation in the object pointed to by FLAGP. */ +extern void fesetexceptflag __P ((__const fexcept_t *__flagp, int __excepts)); + +/* Determine which of subset of the exceptions specified by EXCEPTS are + currently set. */ +extern int fetestexcept __P ((int __excepts)); + + +/* Rounding control. */ + +/* Get current rounding direction. */ +extern int fegetround __P ((void)); + +/* Establish the rounding direction represented by ROUND. */ +extern int fesetround __P ((int __round)); + + +/* Floating-point environment. */ + +/* Store the current floating-point environment in the object pointed + to by ENVP. */ +extern void fegetenv __P ((fenv_t *__envp)); + +/* Save the current environment in the object pointed to by ENVP, clear + exception flags and install a non-stop mode (if available) for all + exceptions. */ +extern int feholdexcept __P ((fenv_t *__envp)); + +/* Establish the floating-point environment represented by the object + pointed to by ENVP. */ +extern void fesetenv __P ((__const fenv_t *__envp)); + +/* Save current exceptions in temporary storage, install environment + represented by object pointed to by ENVP and raise exceptions + according to saved exceptions. */ +extern void feupdateenv __P ((__const fenv_t *__envp)); + +__END_DECLS + +#endif /* fenv.h */ |