From 6355131153fd618d50286f0f24ac49b405d03ee5 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 12 Apr 1997 23:41:36 +0000 Subject: Update. 1997-04-13 01:06 Ulrich Drepper * 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 . * 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 . 1997-04-11 11:57 Miguel de Icaza * sysdeps/unix/sysv/linux/sparc/syscalls.list: Remove fork, pipe, syscall. 1997-04-05 00:57 Andreas Schwab * 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 * 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 * locale/localeinfo.h: Update declaration of _nl_current. 1997-04-11 11:27 Ulrich Drepper * 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 * hurd/Makefile (sunrpc-headers): Add clnt.h. Proposed by Thomas Bushnell . 1997-04-09 14:21 Miguel de Icaza * 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 * 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 * 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 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 * 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 * math/libm-test.c: Fix more typos. 1997-04-03 17:15 Andreas Schwab * 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 * manual/Makefile (dir-add.texi): Simplify. * libio/genops.c (_IO_flush_all_linebuffered): Don't flush on --- sysdeps/libm-ieee754/s_nearbyintl.c | 104 ++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 sysdeps/libm-ieee754/s_nearbyintl.c (limited to 'sysdeps/libm-ieee754/s_nearbyintl.c') diff --git a/sysdeps/libm-ieee754/s_nearbyintl.c b/sysdeps/libm-ieee754/s_nearbyintl.c new file mode 100644 index 0000000000..b6a865443a --- /dev/null +++ b/sysdeps/libm-ieee754/s_nearbyintl.c @@ -0,0 +1,104 @@ +/* s_rintl.c -- long double version of s_rint.c. + * Conversion to long double by Ulrich Drepper, + * Cygnus Support, drepper@cygnus.com. + */ +/* Adapted for use as nearbyint by Ulrich Drepper . */ + +/* + * ==================================================== + * 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: $"; +#endif + +/* + * rintl(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using floating addition. + * Exception: + * Inexact flag raised if x not equal to rintl(x). + */ + +#include +#include "math.h" +#include "math_private.h" + +#ifdef __STDC__ +static const long double +#else +static long double +#endif +TWO63[2]={ + 9.223372036854775808000000e+18, /* 0x403E, 0x00000000, 0x00000000 */ + -9.223372036854775808000000e+18 /* 0xC03E, 0x00000000, 0x00000000 */ +}; + +#ifdef __STDC__ + long double __rintl(long double x) +#else + long double __rintl(x) + long double x; +#endif +{ + fenv_t env; + int32_t se,j0,sx; + u_int32_t i,i0,i1; + long double w,t; + GET_LDOUBLE_WORDS(se,i0,i1,x); + sx = (se>>15)&1; + j0 = (se&0x7fff)-0x3fff; + if(j0<31) { + if(j0<0) { + if(((se&0x7fff)|i0|i1)==0) return x; + i1 |= i0; + i0 &= 0xe0000000; + i0 |= (i1|-i1)&0x80000000; + SET_LDOUBLE_MSW(x,i0); + feholdexcept (&env); + w = TWO63[sx]+x; + t = w-TWO63[sx]; + fesetenv (&env); + GET_LDOUBLE_EXP(i0,t); + SET_LDOUBLE_EXP(t,(i0&0x7fff)|(sx<<15)); + return t; + } else { + i = (0x7fffffff)>>j0; + if(((i0&i)|i1)==0) return x; /* x is integral */ + i>>=1; + if(((i0&i)|i1)!=0) { + if(j0==31) i1 = 0x40000000; else + i0 = (i0&(~i))|((0x20000000)>>j0); + /* Shouldn't this be + if (j0 >= 30) i1 = 0x80000000 >> (j0 - 30); + i0 = (i0&(~i))|((0x20000000)>>j0); + If yes, this should be correct in s_rint and + s_rintf, too. -- drepper@cygnus.com */ + } + } + } else if (j0>62) { + if(j0==0x4000) return x+x; /* inf or NaN */ + else return x; /* x is integral */ + } else { + i = ((u_int32_t)(0xffffffff))>>(j0-31); + if((i1&i)==0) return x; /* x is integral */ + i>>=1; + if((i1&i)!=0) i1 = (i1&(~i))|((0x40000000)>>(j0-31)); + } + SET_LDOUBLE_WORDS(x,se,i0,i1); + feholdexcept (&env); + w = TWO63[sx]+x; + t = w-TWO63[sx]; + fesetenv (&env); + return t; +} +weak_alias (__rintl, rintl) -- cgit 1.4.1