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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_roundtol.c
parentc131718ccc1db101df54fb04f34f5611c3678450 (diff)
downloadglibc-6355131153fd618d50286f0f24ac49b405d03ee5.tar.gz
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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 'sysdeps/libm-ieee754/s_roundtol.c')
-rw-r--r--sysdeps/libm-ieee754/s_roundtol.c177
1 files changed, 177 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_roundtol.c b/sysdeps/libm-ieee754/s_roundtol.c
new file mode 100644
index 0000000000..6649369b06
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_roundtol.c
@@ -0,0 +1,177 @@
+/* Round long double value to long int.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   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.  */
+
+#include <math.h>
+
+#include "math_private.h"
+
+
+#ifdef NO_LONG_DOUBLE
+/* The `long double' is in fact the IEEE `double' type.  */
+
+long int
+__roundtol (long double x)
+{
+  int32_t j0;
+  u_int32_t i1, i0;
+  long int result;
+
+  EXTRACT_WORDS (i0, i1, x);
+  j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
+  if (j0 < 20)
+    {
+      if (j0 < 0)
+	result = j0 < -1 ? 0 : ((i0 & 0x80000000) ? -1 : 1);
+      else
+	{
+	  u_int32_t i = 0xfffff >> j0;
+	  if (((i0 & i) | i1) == 0)
+	    result = (long int) ((i0 & 0xfffff) | 0x100000) >> j0;
+	  else
+	    {
+	      /* X is not integral.  */
+	      u_int32_t j = i0 + (0x80000 >> j0);
+              if (j < i0)
+		result = (long int) 0x80000 >> (20 - j0);
+	      else
+		result = (j | 0x100000) >> (20 - j0);
+	    }
+	}
+    }
+  else if (j0 >= 8 * sizeof (long int) || j0 > 51)
+    {
+      /* The number is too large.  It is left implementation defined
+	 what happens.  */
+      result = (long int) x;
+    }
+  else
+    {
+      i = ((u_int32_t) (0xffffffff)) >> (j0 - 20);
+      if ((i1 & i) != 0)
+	{
+	  /* x is not integral.  */
+	  u_int32_t j = i1 + (0x80000000 >> (j0 - 20));
+	  if (j < i1)
+	    {
+	      j = i0 + 1;
+	      if ((j & 0xfffff) == 0)
+		{
+		  if (sizeof (long int) <= 4)
+		    /* Overflow.  */
+		    result = (long int) x;
+		  else
+		    result = 1l << (j0 + 1);
+		}
+	      else
+		result = (long int) ((i0 & 0xfffff) | 0x100000) << (j0 - 31);
+	    }
+	  else
+	    {
+	      result = (long int) ((i0 & 0xfffff) | 0x100000) << (j0 - 31);
+	      if (sizeof (long int) > 4 && j0 > 31)
+		result |= j >> (63 - j0);
+	    }
+	}
+      else
+	{
+	  result = (long int) ((i0 & 0xfffff) | 0x100000) << (j0 - 31);
+	  if (sizeof (long int) > 4 && j0 > 31)
+	    result |= j >> (63 - j0);
+	}
+    }
+
+  return i0 & 0x80000000 ? -result : result;
+}
+#else
+long int
+__roundtol (long double x)
+{
+  int32_t j0;
+  u_int32_t se, i1, i0;
+  long int result;
+
+  GET_LDOUBLE_WORDS (se, i0, i1, x);
+  j0 = (se & 0x7fff) - 0x3fff;
+  if (j0 < 31)
+    {
+      if (j0 < 0)
+	result = j0 < -1 ? 0 : 1;
+      else
+	{
+	  u_int32_t i = 0x7fffffff >> j0;
+	  if (((i0 & i) | i1) == 0)
+	    result = (long int) i0 >> j0;
+	  else
+	    {
+	      /* X is not integral.  */
+	      u_int32_t j = i0 + (0x40000000 >> j0);
+              if (j < i0)
+		result = 0x80000000l >> (30 - j0);
+	      else
+		result = j >> (31 - j0);
+	    }
+	}
+    }
+  else if ((unsigned int) j0 >= 8 * sizeof (long int) || j0 > 62)
+    {
+      /* The number is too large.  It is left implementation defined
+	 what happens.  */
+      result = (long int) x;
+    }
+  else
+    {
+      u_int32_t i = ((u_int32_t) (0xffffffff)) >> (j0 - 31);
+      if ((i1 & i) != 0)
+	{
+	  /* x is not integral.  */
+	  u_int32_t j = i1 + (0x80000000 >> (j0 - 31));
+	  if (j < i1)
+	    {
+	      j = i0 + 1;
+	      if (j == 0)
+		{
+		  if (sizeof (long int) <= 4)
+		    /* Overflow.  */
+		    result = (long int) x;
+		  else
+		    result = 1l << (j0 + 1);
+		}
+	      else
+		result = (long int) i0 << (j0 - 31);
+	    }
+	  else
+	    {
+	      result = (long int) i0 << (j0 - 31);
+	      if (sizeof (long int) > 4 && j0 > 31)
+		result |= j >> (63 - j0);
+	    }
+	}
+      else
+	{
+	  result = (long int) i0 << (j0 - 31);
+	  if (sizeof (long int) > 4 && j0 > 31)
+	    result |= i1 >> (63 - j0);
+	}
+    }
+
+  return se & 0x8000 ? -result : result;
+}
+#endif
+weak_alias (__roundtol, roundtol)