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| author | Ulrich Drepper <drepper@redhat.com> | 2006-09-20 17:29:36 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-09-20 17:29:36 +0000 |
| commit | 6624dbc07b5a9fb316ed188ef01f65b8eea8b47c (patch) | |
| tree | d959e66afb360e3f4ef06bd5e20cffd7d10e2945 /sysdeps/ieee754/ldbl-128 | |
| parent | 60cb50c7b678a1cd2d794f134b81bea53dcf84b0 (diff) | |
| download | glibc-6624dbc07b5a9fb316ed188ef01f65b8eea8b47c.tar.gz glibc-6624dbc07b5a9fb316ed188ef01f65b8eea8b47c.tar.xz glibc-6624dbc07b5a9fb316ed188ef01f65b8eea8b47c.zip | |
[BZ #2592]
2006-06-17 Joseph S. Myers <joseph@codesourcery.com> [BZ #2592] * math/libm-test.inc (lrint_test_tonearest): New function. (lrint_test_towardzero): New function. (lrint_test_downward): New function. (lrint_test_upward): New function. (main): Run these new tests. * sysdeps/ieee754/dbl-64/s_llrint.c (__llrint): Correct rounding of values near to 0. (two52): Use double not long double. * sysdeps/ieee754/dbl-64/s_lrint.c (__lrint): Likewise. * sysdeps/ieee754/flt-32/s_llrintf.c (__llrintf): Likewise. (two23): Use float not double. * sysdeps/ieee754/flt-32/s_lrintf.c (__lrintf): Likewise. (two23): Use float not double. * sysdeps/ieee754/ldbl-128/s_llrintl.c (__llrintl): Likewise. * sysdeps/ieee754/ldbl-128/s_lrintl.c (__lrintl): Likewise. * sysdeps/ieee754/ldbl-96/s_llrintl.c (__llrintl): Likewise. * sysdeps/ieee754/ldbl-96/s_lrintl.c (__lrintl): Likewise.
Diffstat (limited to 'sysdeps/ieee754/ldbl-128')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_llrintl.c | 6 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_lrintl.c | 21 |
2 files changed, 11 insertions, 16 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_llrintl.c b/sysdeps/ieee754/ldbl-128/s_llrintl.c index ee66454e2f..5804f57d11 100644 --- a/sysdeps/ieee754/ldbl-128/s_llrintl.c +++ b/sysdeps/ieee754/ldbl-128/s_llrintl.c @@ -48,8 +48,6 @@ __llrintl (long double x) if (j0 < (int32_t) (8 * sizeof (long long int)) - 1) { - if (j0 < -1) - return 0; w = two112[sx] + x; t = w - two112[sx]; GET_LDOUBLE_WORDS64 (i0, i1, t); @@ -57,7 +55,9 @@ __llrintl (long double x) i0 &= 0x0000ffffffffffffLL; i0 |= 0x0001000000000000LL; - if (j0 <= 48) + if (j0 < 0) + result = 0; + else if (j0 <= 48) result = i0 >> (48 - j0); else result = ((long long int) i0 << (j0 - 48)) | (i1 >> (112 - j0)); diff --git a/sysdeps/ieee754/ldbl-128/s_lrintl.c b/sysdeps/ieee754/ldbl-128/s_lrintl.c index 66f9a429fc..53835a4bbc 100644 --- a/sysdeps/ieee754/ldbl-128/s_lrintl.c +++ b/sysdeps/ieee754/ldbl-128/s_lrintl.c @@ -1,6 +1,6 @@ /* Round argument to nearest integral value according to current rounding direction. - Copyright (C) 1997, 1999, 2004 Free Software Foundation, Inc. + Copyright (C) 1997, 1999, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and Jakub Jelinek <jj@ultra.linux.cz>, 1999. @@ -48,19 +48,14 @@ __lrintl (long double x) if (j0 < 48) { - if (j0 < -1) - return 0; - else - { - w = two112[sx] + x; - t = w - two112[sx]; - GET_LDOUBLE_WORDS64 (i0, i1, x); - j0 = ((i0 >> 48) & 0x7fff) - 0x3fff; - i0 &= 0x0000ffffffffffffLL; - i0 |= 0x0001000000000000LL; + w = two112[sx] + x; + t = w - two112[sx]; + GET_LDOUBLE_WORDS64 (i0, i1, x); + j0 = ((i0 >> 48) & 0x7fff) - 0x3fff; + i0 &= 0x0000ffffffffffffLL; + i0 |= 0x0001000000000000LL; - result = i0 >> (48 - j0); - } + result = (j0 < 0 ? 0 : i0 >> (48 - j0)); } else if (j0 < (int32_t) (8 * sizeof (long int)) - 1) { |