diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-96/s_lrintl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-96/s_lrintl.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/sysdeps/ieee754/ldbl-96/s_lrintl.c b/sysdeps/ieee754/ldbl-96/s_lrintl.c deleted file mode 100644 index 02dafe67f3..0000000000 --- a/sysdeps/ieee754/ldbl-96/s_lrintl.c +++ /dev/null @@ -1,126 +0,0 @@ -/* Round argument to nearest integral value according to current rounding - direction. - Copyright (C) 1997-2017 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/>. */ - -#include <fenv.h> -#include <limits.h> -#include <math.h> - -#include <math_private.h> - -static const long double two63[2] = -{ - 9.223372036854775808000000e+18, /* 0x403E, 0x00000000, 0x00000000 */ - -9.223372036854775808000000e+18 /* 0xC03E, 0x00000000, 0x00000000 */ -}; - - -long int -__lrintl (long double x) -{ - int32_t se,j0; - u_int32_t i0, i1; - long int result; - long double w; - long double t; - int sx; - - GET_LDOUBLE_WORDS (se, i0, i1, x); - - sx = (se >> 15) & 1; - j0 = (se & 0x7fff) - 0x3fff; - - if (j0 < 31) - { -#if defined FE_INVALID || defined FE_INEXACT - /* X < LONG_MAX + 1 implied by J0 < 31. */ - if (sizeof (long int) == 4 - && x > (long double) LONG_MAX) - { - /* In the event of overflow we must raise the "invalid" - exception, but not "inexact". */ - t = __nearbyintl (x); - feraiseexcept (t == LONG_MAX ? FE_INEXACT : FE_INVALID); - } - else -#endif - { - w = two63[sx] + x; - t = w - two63[sx]; - } - GET_LDOUBLE_WORDS (se, i0, i1, t); - j0 = (se & 0x7fff) - 0x3fff; - - result = (j0 < 0 ? 0 : i0 >> (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 - { -#if defined FE_INVALID || defined FE_INEXACT - /* X < LONG_MAX + 1 implied by J0 < 63. */ - if (sizeof (long int) == 8 - && x > (long double) LONG_MAX) - { - /* In the event of overflow we must raise the "invalid" - exception, but not "inexact". */ - t = __nearbyintl (x); - feraiseexcept (t == LONG_MAX ? FE_INEXACT : FE_INVALID); - } - else -#endif - { - w = two63[sx] + x; - t = w - two63[sx]; - } - GET_LDOUBLE_WORDS (se, i0, i1, t); - j0 = (se & 0x7fff) - 0x3fff; - - if (j0 == 31) - result = (long int) i0; - else - result = ((long int) i0 << (j0 - 31)) | (i1 >> (63 - j0)); - } - } - else - { - /* The number is too large. Unless it rounds to LONG_MIN, - FE_INVALID must be raised and the return value is - unspecified. */ -#if defined FE_INVALID || defined FE_INEXACT - if (sizeof (long int) == 4 - && x < (long double) LONG_MIN - && x > (long double) LONG_MIN - 1.0L) - { - /* If truncation produces LONG_MIN, the cast will not raise - the exception, but may raise "inexact". */ - t = __nearbyintl (x); - feraiseexcept (t == LONG_MIN ? FE_INEXACT : FE_INVALID); - return LONG_MIN; - } -#endif - return (long int) x; - } - - return sx ? -result : result; -} - -weak_alias (__lrintl, lrintl) |