1 /* Test of ilogbl() function.
2 Copyright (C) 2012-2020 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2012. */
23 #include "signature.h"
24 SIGNATURE_CHECK (ilogbl
, int, (long double));
29 #include "minus-zero.h"
37 #define DOUBLE long double
39 #define INFINITY Infinityl ()
41 #define L_(literal) literal##L
42 #define MINUS_ZERO minus_zerol
43 #define MAX_EXP LDBL_MAX_EXP
44 #define MIN_EXP LDBL_MIN_EXP
45 /* On MIPS IRIX machines, LDBL_MIN_EXP is -1021, but the smallest reliable
46 exponent for 'long double' is -964. Similarly, on PowerPC machines,
47 LDBL_MIN_EXP is -1021, but the smallest reliable exponent for 'long double'
48 is -968. For exponents below that, the precision may be truncated to the
49 precision used for 'double'. */
51 # define MIN_NORMAL_EXP (LDBL_MIN_EXP + 57)
52 #elif defined __ppc || defined __ppc__ || defined __powerpc || defined __powerpc__
53 # define MIN_NORMAL_EXP (LDBL_MIN_EXP + 53)
55 # define MIN_NORMAL_EXP LDBL_MIN_EXP
58 #define RANDOM randoml
59 #include "test-ilogb.h"