tests/test-ilogbl.c

   1 /* Test of ilogbl() function.
   2    Copyright (C) 2012-2024 Free Software Foundation, Inc.
   3
   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.
   8
   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.
  13
  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/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2012.  */
  18
  19 #include <config.h>
  20
  21 #include <math.h>
  22
  23 #include "signature.h"
  24 SIGNATURE_CHECK (ilogbl, int, (long double));
  25
  26 #include <float.h>
  27 #include <limits.h>
  28
  29 #include "minus-zero.h"
  30 #include "infinity.h"
  31 #include "nan.h"
  32 #include "macros.h"
  33
  34 #undef INFINITY
  35 #undef NAN
  36
  37 #define DOUBLE long double
  38 #define VOLATILE
  39 #define INFINITY Infinityl ()
  40 #define NAN NaNl ()
  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'.  */
  50 #ifdef __sgi
  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)
  54 #else
  55 # define MIN_NORMAL_EXP LDBL_MIN_EXP
  56 #endif
  57 #define ILOGB ilogbl
  58 #define RANDOM randoml
  59 #include "test-ilogb.h"
  60
  61 int
  62 main ()
  63 {
  64   test_function ();
  65
  66   return test_exit_status;
  67 }