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authorUlrich Drepper <drepper@redhat.com>1997-04-12 23:41:36 +0000
committerUlrich Drepper <drepper@redhat.com>1997-04-12 23:41:36 +0000
commit6355131153fd618d50286f0f24ac49b405d03ee5 (patch)
tree4927449e56ae721b2ddb0d42efcce211b6068004 /sysdeps/libm-ieee754/s_nearbyint.c
parentc131718ccc1db101df54fb04f34f5611c3678450 (diff)
downloadglibc-6355131153fd618d50286f0f24ac49b405d03ee5.tar.gz
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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 'sysdeps/libm-ieee754/s_nearbyint.c')
-rw-r--r--sysdeps/libm-ieee754/s_nearbyint.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_nearbyint.c b/sysdeps/libm-ieee754/s_nearbyint.c
new file mode 100644
index 0000000000..32f5bf9447
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_nearbyint.c
@@ -0,0 +1,98 @@
+/* Adapted for use as nearbyint by Ulrich Drepper <drepper@cygnus.com>.  */
+/*
+ * ====================================================
+ * 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: s_rint.c,v 1.8 1995/05/10 20:48:04 jtc Exp $";
+#endif
+
+/*
+ * rint(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 rint(x).
+ */
+
+#include <fenv.h>
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const double
+#else
+static double
+#endif
+TWO52[2]={
+  4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */
+ -4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */
+};
+
+#ifdef __STDC__
+	double __nearbyint(double x)
+#else
+	double __nearbyint(x)
+	double x;
+#endif
+{
+	fenv_t env;
+	int32_t i0,j0,sx;
+	u_int32_t i,i1;
+	double w,t;
+	EXTRACT_WORDS(i0,i1,x);
+	sx = (i0>>31)&1;
+	j0 = ((i0>>20)&0x7ff)-0x3ff;
+	if(j0<20) {
+	    if(j0<0) {
+		if(((i0&0x7fffffff)|i1)==0) return x;
+		i1 |= (i0&0x0fffff);
+		i0 &= 0xfffe0000;
+		i0 |= ((i1|-i1)>>12)&0x80000;
+		SET_HIGH_WORD(x,i0);
+		feholdexcept (&env);
+	        w = TWO52[sx]+x;
+	        t =  w-TWO52[sx];
+		fesetenv (&env);
+		GET_HIGH_WORD(i0,t);
+		SET_HIGH_WORD(t,(i0&0x7fffffff)|(sx<<31));
+	        return t;
+	    } else {
+		i = (0x000fffff)>>j0;
+		if(((i0&i)|i1)==0) return x; /* x is integral */
+		i>>=1;
+		if(((i0&i)|i1)!=0) {
+		    if(j0==19) i1 = 0x40000000; else
+		    i0 = (i0&(~i))|((0x20000)>>j0);
+		}
+	    }
+	} else if (j0>51) {
+	    if(j0==0x400) return x+x;	/* inf or NaN */
+	    else return x;		/* x is integral */
+	} else {
+	    i = ((u_int32_t)(0xffffffff))>>(j0-20);
+	    if((i1&i)==0) return x;	/* x is integral */
+	    i>>=1;
+	    if((i1&i)!=0) i1 = (i1&(~i))|((0x40000000)>>(j0-20));
+	}
+	INSERT_WORDS(x,i0,i1);
+	feholdexcept (&env);
+	w = TWO52[sx]+x;
+	t = w-TWO52[sx];
+	fesetenv (&env);
+	return t;
+}
+weak_alias (__nearbyint, nearbyint)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__nearbyint, __nearbyintl)
+weak_alias (__nearbyint, nearbyintl)
+#endif