1 /* Emulation for ldexpl.
2 Contributed by Paolo Bonzini
4 Copyright 2002, 2003 Free Software Foundation, Inc.
6 This file is part of gnulib.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation,
20 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
28 ldexpl(long double x, int exp)
33 /* Check for zero, nan and infinity. */
34 if (x != x || x + x == x )
45 for (bit = 1; bit <= exp; bit <<= 1, factor *= factor)
58 for (y = 0; y < 29; y++)
59 printf ("%5d %.16Lg %.16Lg\n", y, ldexpl(0.8L, y), ldexpl(0.8L, -y) * ldexpl(0.8L, y));