projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 0413b54c UD |
1 | /* Round a 32-bit floating point value to the nearest integer. |
| 2 | Copyright (C) 1997 Free Software Foundation, Inc. | |
| 3 | This file is part of the GNU C Library. | |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Library General Public License as | |
| 7 | published by the Free Software Foundation; either version 2 of the | |
| 8 | License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Library General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Library General Public | |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| 17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 18 | Boston, MA 02111-1307, USA. */ | |
| 19 | ||
| 20 | #include "math.h" | |
| 21 | ||
| 22 | float | |
| 23 | __rintf (float x) | |
| 24 | { | |
| 25 | static const float TWO23 = 8388608.0; | |
| 26 | ||
| 27 | if (fabsf (x) < TWO23) | |
| 118bad87 UD |
28 | { |
| 29 | if (x > 0.0) | |
| 30 | { | |
| 31 | x += TWO23; | |
| 32 | x -= TWO23; | |
| 33 | } | |
| 34 | else if (x < 0.0) | |
| 35 | { | |
| 36 | x -= TWO23; | |
| 37 | x += TWO23; | |
| 38 | } | |
| 39 | } | |
| 40 | ||
| 0413b54c UD |
41 | return x; |
| 42 | } | |
| 43 | weak_alias (__rintf, rintf) |