diff options
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/fpu/s_rint.c')
| -rw-r--r-- | REORG.TODO/sysdeps/powerpc/fpu/s_rint.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/fpu/s_rint.c b/REORG.TODO/sysdeps/powerpc/fpu/s_rint.c new file mode 100644 index 0000000000..a96140b2c9 --- /dev/null +++ b/REORG.TODO/sysdeps/powerpc/fpu/s_rint.c @@ -0,0 +1,46 @@ +/* Round a 64-bit floating point value to the nearest integer. + Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 <math.h> + +double +__rint (double x) +{ + static const float TWO52 = 4503599627370496.0; + + if (fabs (x) < TWO52) + { + if (x > 0.0) + { + x += TWO52; + x -= TWO52; + } + else if (x < 0.0) + { + x = TWO52 - x; + x = -(x - TWO52); + } + } + + return x; +} +weak_alias (__rint, rint) +#ifdef NO_LONG_DOUBLE +strong_alias (__rint, __rintl) +weak_alias (__rint, rintl) +#endif |