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Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_lroundl.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_lroundl.c142
1 files changed, 0 insertions, 142 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_lroundl.c b/sysdeps/ieee754/ldbl-128ibm/s_lroundl.c
deleted file mode 100644
index a5251ee..0000000
--- a/sysdeps/ieee754/ldbl-128ibm/s_lroundl.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* Round to long int long double floating-point values.
- 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. */
-
-#include <math.h>
-#include <fenv_libc.h>
-#include <math_ldbl_opt.h>
-#include <float.h>
-#include <ieee754.h>
-
-#ifdef __STDC__
-long
-__lroundl (long double x)
-#else
-long
-__lroundl (x)
- long double x;
-#endif
-{
- double xh, xl;
- long res, hi, lo;
-
- ldbl_unpack (x, &xh, &xl);
-
- /* Limit the range of values handled by the conversion to long.
- We do this because we aren't sure whether that conversion properly
- raises FE_INVALID. */
- if (
-#if __LONG_MAX__ == 2147483647
- __builtin_expect
- ((__builtin_fabs (xh) <= (double) __LONG_MAX__ + 2), 1)
-#else
- __builtin_expect
- ((__builtin_fabs (xh) <= -(double) (-__LONG_MAX__ - 1)), 1)
-#endif
-#if !defined (FE_INVALID)
- || 1
-#endif
- )
- {
-#if __LONG_MAX__ == 2147483647
- long long llhi = (long long) xh;
- if (llhi != (long) llhi)
- hi = llhi < 0 ? -__LONG_MAX__ - 1 : __LONG_MAX__;
- else
- hi = llhi;
- xh -= hi;
-#else
- if (__builtin_expect ((xh == -(double) (-__LONG_MAX__ - 1)), 0))
- {
- /* When XH is 9223372036854775808.0, converting to long long will
- overflow, resulting in an invalid operation. However, XL might
- be negative and of sufficient magnitude that the overall long
- double is in fact in range. Avoid raising an exception. In any
- case we need to convert this value specially, because
- the converted value is not exactly represented as a double
- thus subtracting HI from XH suffers rounding error. */
- hi = __LONG_MAX__;
- xh = 1.0;
- }
- else
- {
- hi = (long) xh;
- xh -= hi;
- }
-#endif
- ldbl_canonicalize (&xh, &xl);
-
- lo = (long) xh;
-
- /* Peg at max/min values, assuming that the above conversions do so.
- Strictly speaking, we can return anything for values that overflow,
- but this is more useful. */
- res = hi + lo;
-
- /* This is just sign(hi) == sign(lo) && sign(res) != sign(hi). */
- if (__builtin_expect (((~(hi ^ lo) & (res ^ hi)) < 0), 0))
- goto overflow;
-
- xh -= lo;
- ldbl_canonicalize (&xh, &xl);
-
- hi = res;
- if (xh > 0.5)
- {
- res += 1;
- }
- else if (xh == 0.5)
- {
- if (xl > 0.0 || (xl == 0.0 && res >= 0))
- res += 1;
- }
- else if (-xh > 0.5)
- {
- res -= 1;
- }
- else if (-xh == 0.5)
- {
- if (xl < 0.0 || (xl == 0.0 && res <= 0))
- res -= 1;
- }
-
- if (__builtin_expect (((~(hi ^ (res - hi)) & (res ^ hi)) < 0), 0))
- goto overflow;
-
- return res;
- }
- else
- {
- if (xh > 0.0)
- hi = __LONG_MAX__;
- else if (xh < 0.0)
- hi = -__LONG_MAX__ - 1;
- else
- /* Nan */
- hi = 0;
- }
-
-overflow:
-#ifdef FE_INVALID
- feraiseexcept (FE_INVALID);
-#endif
- return hi;
-}
-
-long_double_symbol (libm, __lroundl, lroundl);