aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/ieee754
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2012-03-16 15:14:56 -0700
committerH.J. Lu <hjl.tools@gmail.com>2012-03-16 15:20:45 -0700
commiteb0f39b6b770a421ed297bd625b1875a0f7fbaad (patch)
tree005bb78802a36ae5f8fba439fe517de241fc2629 /sysdeps/ieee754
parent6b6cd74babd854923cf1ecb545f8902ecee56419 (diff)
downloadglibc-eb0f39b6b770a421ed297bd625b1875a0f7fbaad.tar
glibc-eb0f39b6b770a421ed297bd625b1875a0f7fbaad.tar.gz
glibc-eb0f39b6b770a421ed297bd625b1875a0f7fbaad.tar.bz2
glibc-eb0f39b6b770a421ed297bd625b1875a0f7fbaad.zip
Make lround the alias of llround for wordsize-64
Diffstat (limited to 'sysdeps/ieee754')
-rw-r--r--sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c80
-rw-r--r--sysdeps/ieee754/dbl-64/wordsize-64/s_lround.c80
2 files changed, 80 insertions, 80 deletions
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c
index f7c9ea568f..4a72005d05 100644
--- a/sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c
@@ -1 +1,79 @@
-/* The code is the same as lround. Use an alias, see l_round.c. */
+/* Round double value to long long int.
+ Copyright (C) 1997-2012 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 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#define lround __hidden_lround
+#define __lround __hidden___lround
+
+#include <math.h>
+
+#include <math_private.h>
+
+
+long long int
+__llround (double x)
+{
+ int32_t j0;
+ int64_t i0;
+ long long int result;
+ int sign;
+
+ EXTRACT_WORDS64 (i0, x);
+ j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
+ sign = i0 < 0 ? -1 : 1;
+ i0 &= UINT64_C(0xfffffffffffff);
+ i0 |= UINT64_C(0x10000000000000);
+
+ if (j0 < (int32_t) (8 * sizeof (long long int)) - 1)
+ {
+ if (j0 < 0)
+ return j0 < -1 ? 0 : sign;
+ else if (j0 >= 52)
+ result = i0 << (j0 - 52);
+ else
+ {
+ i0 += UINT64_C(0x8000000000000) >> j0;
+
+ result = i0 >> (52 - j0);
+ }
+ }
+ else
+ {
+ /* The number is too large. It is left implementation defined
+ what happens. */
+ return (long long int) x;
+ }
+
+ return sign * result;
+}
+
+weak_alias (__llround, llround)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__llround, __lroundl)
+weak_alias (__llround, lroundl)
+#endif
+
+/* long has the same width as long long on 64-bit machines. */
+#undef lround
+#undef __lround
+strong_alias (__llround, __lround)
+weak_alias (__llround, lround)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__llround, __llroundl)
+weak_alias (__llround, llroundl)
+#endif
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_lround.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_lround.c
index e3a1db0d50..1e06fcb16e 100644
--- a/sysdeps/ieee754/dbl-64/wordsize-64/s_lround.c
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_lround.c
@@ -1,79 +1 @@
-/* Round double value to long int.
- Copyright (C) 1997, 2004, 2009 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 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, see
- <http://www.gnu.org/licenses/>. */
-
-#define llround __hidden_llround
-#define __llround __hidden___llround
-
-#include <math.h>
-
-#include <math_private.h>
-
-
-long int
-__lround (double x)
-{
- int32_t j0;
- int64_t i0;
- long int result;
- int sign;
-
- EXTRACT_WORDS64 (i0, x);
- j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
- sign = i0 < 0 ? -1 : 1;
- i0 &= UINT64_C(0xfffffffffffff);
- i0 |= UINT64_C(0x10000000000000);
-
- if (j0 < (int32_t) (8 * sizeof (long int)) - 1)
- {
- if (j0 < 0)
- return j0 < -1 ? 0 : sign;
- else if (j0 >= 52)
- result = i0 << (j0 - 52);
- else
- {
- i0 += UINT64_C(0x8000000000000) >> j0;
-
- result = i0 >> (52 - j0);
- }
- }
- else
- {
- /* The number is too large. It is left implementation defined
- what happens. */
- return (long int) x;
- }
-
- return sign * result;
-}
-
-weak_alias (__lround, lround)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__lround, __lroundl)
-weak_alias (__lround, lroundl)
-#endif
-
-/* long long has the same width as long on 64-bit machines. */
-#undef llround
-#undef __llround
-strong_alias (__lround, __llround)
-weak_alias (__lround, llround)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__lround, __llroundl)
-weak_alias (__lround, llroundl)
-#endif
+/* The code is the same as llround. Use an alias, see s_llround.c. */