diff options
Diffstat (limited to 'sysdeps/ieee754/flt-32/s_lrintf.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_lrintf.c | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/sysdeps/ieee754/flt-32/s_lrintf.c b/sysdeps/ieee754/flt-32/s_lrintf.c deleted file mode 100644 index a1ed720c0f..0000000000 --- a/sysdeps/ieee754/flt-32/s_lrintf.c +++ /dev/null @@ -1,86 +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> -#include <fix-fp-int-convert-overflow.h> - -static const float two23[2] = -{ - 8.3886080000e+06, /* 0x4B000000 */ - -8.3886080000e+06, /* 0xCB000000 */ -}; - - -long int -__lrintf (float x) -{ - int32_t j0; - u_int32_t i0; - float w; - float t; - long int result; - int sx; - - GET_FLOAT_WORD (i0, x); - - sx = i0 >> 31; - j0 = ((i0 >> 23) & 0xff) - 0x7f; - i0 &= 0x7fffff; - i0 |= 0x800000; - - if (j0 < (int32_t) (sizeof (long int) * 8) - 1) - { - if (j0 >= 23) - result = (long int) i0 << (j0 - 23); - else - { - w = math_narrow_eval (two23[sx] + x); - t = w - two23[sx]; - GET_FLOAT_WORD (i0, t); - j0 = ((i0 >> 23) & 0xff) - 0x7f; - i0 &= 0x7fffff; - i0 |= 0x800000; - - result = (j0 < 0 ? 0 : i0 >> (23 - j0)); - } - } - else - { -#ifdef FE_INVALID - /* The number is too large. Unless it rounds to LONG_MIN, - FE_INVALID must be raised and the return value is - unspecified. */ - if (FIX_FLT_LONG_CONVERT_OVERFLOW && x != (float) LONG_MIN) - { - feraiseexcept (FE_INVALID); - return sx == 0 ? LONG_MAX : LONG_MIN; - } -#endif - return (long int) x; - } - - return sx ? -result : result; -} - -weak_alias (__lrintf, lrintf) |