added matherr, lroundl and roundl

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27338 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/libroot/posix/glibc/arch/generic/s_lroundl.c

@@ -0,0 +1,81 @@
+/* Round long double value to long int.
+   Copyright (C) 1997, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <[email protected]>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; 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"
+
+
+long int
+__lroundl (long double x)
+{
+  int32_t j0;
+  u_int32_t se, i1, i0;
+  long int result;
+  int sign;
+
+  GET_LDOUBLE_WORDS (se, i0, i1, x);
+  j0 = (se & 0x7fff) - 0x3fff;
+  sign = (se & 0x8000) != 0 ? -1 : 1;
+
+  if (j0 < 31)
+    {
+      if (j0 < 0)
+	return j0 < -1 ? 0 : sign;
+      else
+	{
+	  u_int32_t j = i0 + (0x40000000 >> j0);
+	  if (j < i0)
+	    {
+	      j >>= 1;
+	      j |= 0x80000000;
+	      ++j0;
+	    }
+
+	  result = j >> (31 - j0);
+	}
+    }
+  else if (j0 < (int32_t) (8 * sizeof (long int)) - 1)
+    {
+      if (j0 >= 63)
+	result = ((long int) i0 << (j0 - 31)) | (i1 << (j0 - 63));
+      else
+	{
+	  u_int32_t j = i1 + (0x80000000 >> (j0 - 31));
+	  if (j < i1)
+	    ++i0;
+
+	  if (j0 == 31)
+	    result = (long int) i0;
+	  else
+	    result = ((long int) i0 << (j0 - 31)) | (j >> (63 - j0));
+	}
+    }
+  else
+    {
+      /* The number is too large.  It is left implementation defined
+	 what happens.  */
+      return (long int) x;
+    }
+
+  return sign * result;
+}
+
+weak_alias (__lroundl, lroundl)

src/system/libroot/posix/glibc/arch/generic/s_matherr.c

@@ -0,0 +1,35 @@
+/* @(#)s_matherr.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * 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_matherr.c,v 1.6 1995/05/10 20:47:53 jtc Exp $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+	int
+	weak_function
+	 __matherr(struct exception *x)
+#else
+	int
+	weak_function
+	__matherr(x)
+	struct exception *x;
+#endif
+{
+	int n=0;
+	if(x->arg1!=x->arg1) return 0;
+	return n;
+}
+weak_alias (__matherr, matherr)

src/system/libroot/posix/glibc/arch/generic/s_roundl.c

@@ -0,0 +1,106 @@
+/* Round long double to integer away from zero.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <[email protected]>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; 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"
+
+
+static const long double huge = 1.0e4930;
+
+
+long double
+__roundl (long double x)
+{
+  int32_t j0;
+  u_int32_t se, i1, i0;
+
+  GET_LDOUBLE_WORDS (se, i0, i1, x);
+  j0 = (se & 0x7fff) - 0x3fff;
+  if (j0 < 31)
+    {
+      if (j0 < 0)
+	{
+	  if (huge + x > 0.0)
+	    {
+	      se &= 0x8000;
+	      i0 = i1 = 0;
+	      if (j0 == -1)
+		{
+		  se |= 0x3fff;
+		  i0 = 0x80000000;
+		}
+	    }
+	}
+      else
+	{
+	  u_int32_t i = 0x7fffffff >> j0;
+	  if (((i0 & i) | i1) == 0)
+	    /* X is integral.  */
+	    return x;
+	  if (huge + x > 0.0)
+	    {
+	      /* Raise inexact if x != 0.  */
+	      u_int32_t j = i0 + (0x40000000 >> j0);
+	      if (j < i0)
+		se += 1;
+	      i0 = (j & ~i) | 0x80000000;
+	      i1 = 0;
+	    }
+	}
+    }
+  else if (j0 > 62)
+    {
+      if (j0 == 0x4000)
+	/* Inf or NaN.  */
+	return x + x;
+      else
+	return x;
+    }
+  else
+    {
+      u_int32_t i = 0xffffffff >> (j0 - 31);
+      if ((i1 & i) == 0)
+	/* X is integral.  */
+	return x;
+
+      if (huge + x > 0.0)
+	{
+	  /* Raise inexact if x != 0.  */
+	  u_int32_t j = i1 + (1 << (62 - j0));
+	  if (j < i1)
+	    {
+	      u_int32_t k = i0 + 1;
+	      if (k < i0)
+		{
+		  se += 1;
+		  k |= 0x80000000;
+		}
+	      i0 = k;
+	    }
+	  i1 = j;
+	}
+      i1 &= ~i;
+    }
+
+  SET_LDOUBLE_WORDS (x, se, i0, i1);
+  return x;
+}
+weak_alias (__roundl, roundl)

src/system/libroot/posix/glibc/arch/x86/Jamfile

@@ -56,12 +56,13 @@ local genericSources =
 	s_isinf.c s_isinff.c
 	s_isnan.c s_isnanf.c
 	s_ldexp.c s_ldexpf.c #s_ldexpl.c
-	s_lround.c s_lroundf.c
+	s_lround.c s_lroundf.c s_lroundl.c
+	s_matherr.c
 	s_modf.c s_modff.c # s_modfl.c
 	s_nan.c s_nanf.c
 	s_nextafter.c
 	s_signbit.c s_signbitf.c s_signbitl.c
-	s_round.c s_roundf.c # s_roundl.c
+	s_round.c s_roundf.c s_roundl.c
 	s_signgam.c
 	s_tanh.c s_tanhf.c