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Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c b/sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c
deleted file mode 100644
index 2561fda..0000000
--- a/sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/* Round to int long double floating-point values without raising inexact.
- IBM extended format long double version.
- Copyright (C) 2006 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 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. */
-
-/* This has been coded in assembler because GCC makes such a mess of it
- when it's coded in C. */
-
-#include <math.h>
-#include <fenv.h>
-#include <math_ldbl_opt.h>
-#include <float.h>
-#include <ieee754.h>
-
-
-#ifdef __STDC__
-long double
-__nearbyintl (long double x)
-#else
-long double
-__nearbyintl (x)
- long double x;
-#endif
-{
- fenv_t env;
- static const long double TWO52 = 4503599627370496.0L;
- union ibm_extended_long_double u;
- u.d = x;
-
- if (fabs (u.dd[0]) < TWO52)
- {
- double high = u.dd[0];
- feholdexcept (&env);
- if (high > 0.0)
- {
- high += TWO52;
- high -= TWO52;
- if (high == -0.0) high = 0.0;
- }
- else if (high < 0.0)
- {
- high -= TWO52;
- high += TWO52;
- if (high == 0.0) high = -0.0;
- }
- u.dd[0] = high;
- u.dd[1] = 0.0;
- fesetenv (&env);
- }
- else if (fabs (u.dd[1]) < TWO52 && u.dd[1] != 0.0)
- {
- double high, low, tau;
- /* In this case we have to round the low double and handle any
- adjustment to the high double that may be caused by rounding
- (up). This is complicated by the fact that the high double
- may already be rounded and the low double may have the
- opposite sign to compensate. */
- feholdexcept (&env);
- if (u.dd[0] > 0.0)
- {
- if (u.dd[1] > 0.0)
- {
- /* If the high/low doubles are the same sign then simply
- round the low double. */
- high = u.dd[0];
- low = u.dd[1];
- }
- else if (u.dd[1] < 0.0)
- {
- /* Else the high double is pre rounded and we need to
- adjust for that. */
-
- tau = nextafter (u.dd[0], 0.0);
- tau = (u.dd[0] - tau) * 2.0;
- high = u.dd[0] - tau;
- low = u.dd[1] + tau;
- }
- low += TWO52;
- low -= TWO52;
- }
- else if (u.dd[0] < 0.0)
- {
- if (u.dd[1] < 0.0)
- {
- /* If the high/low doubles are the same sign then simply
- round the low double. */
- high = u.dd[0];
- low = u.dd[1];
- }
- else if (u.dd[1] > 0.0)
- {
- /* Else the high double is pre rounded and we need to
- adjust for that. */
- tau = nextafter (u.dd[0], 0.0);
- tau = (u.dd[0] - tau) * 2.0;
- high = u.dd[0] - tau;
- low = u.dd[1] + tau;
- }
- low = TWO52 - low;
- low = -(low - TWO52);
- }
- u.dd[0] = high + low;
- u.dd[1] = high - u.dd[0] + low;
- fesetenv (&env);
- }
-
- return u.d;
-}
-
-long_double_symbol (libm, __nearbyintl, nearbyintl);