## Artifact 580e8decc38863e0b39c94d316d9511f285029fd:

- Executable file wiki_references/2017/software/p2psim/src/third_party/libgmp_v_4_1_2/gmp-4.1.2/insert-dbl.c — part of check-in [58fe99e749] at 2017-05-16 00:49:42 on branch trunk — wiki references (user: martin_vahi, size: 2112) [annotate] [blame] [check-ins using] [more...]
- Executable file wiki_references/2017/software/simulators/p2psim/src/third_party/libgmp_v_4_1_2/gmp-4.1.2/insert-dbl.c — part of check-in [2f37af65e5] at 2018-01-22 21:27:03 on branch trunk — VS p2psim -> simulators/p2psim (user: martin_vahi, size: 2112) [annotate] [blame] [check-ins using]
- Executable file wiki_references/2017/software/simulators/src/third_party/libgmp_v_4_1_2/gmp-4.1.2/insert-dbl.c — part of check-in [e19a814400] at 2018-01-22 21:20:12 on branch trunk — VS temporary rename (user: martin_vahi, size: 2112) [annotate] [blame] [check-ins using]

`/* __gmp_scale2 -- Scale a double by exponent manipulation. Copyright 1996, 1997, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. This file is part of the GNU MP Library. The GNU MP 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 MP 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 MP Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "gmp.h" #include "gmp-impl.h" #ifdef XDEBUG #undef _GMP_IEEE_FLOATS #endif #ifndef _GMP_IEEE_FLOATS #define _GMP_IEEE_FLOATS 0 #endif double __gmp_scale2 (double d, int exp) { #if _GMP_IEEE_FLOATS { #if defined (__alpha) && __GNUC__ == 2 && __GNUC_MINOR__ == 8 /* Work around alpha-specific bug in GCC 2.8.x. */ volatile #endif union ieee_double_extract x; x.d = d; exp += x.s.exp; x.s.exp = exp; if (exp >= 2047) { /* Return +-infinity */ x.s.exp = 2047; x.s.manl = x.s.manh = 0; } else if (exp < 1) { x.s.exp = 1; /* smallest exponent (biased) */ /* Divide result by 2 until we have scaled it to the right IEEE denormalized number, but stop if it becomes zero. */ while (exp < 1 && x.d != 0) { x.d *= 0.5; exp++; } } return x.d; } #else { double factor, r; factor = 2.0; if (exp < 0) { factor = 0.5; exp = -exp; } r = d; if (exp != 0) { if ((exp & 1) != 0) r *= factor; exp >>= 1; while (exp != 0) { factor *= factor; if ((exp & 1) != 0) r *= factor; exp >>= 1; } } return r; } #endif }`