math/libm-test-ilogb.inc

   1 /* Test ilogb.
   2    Copyright (C) 1997-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include "libm-test-driver.c"
  20
  21 static const struct test_f_i_data ilogb_test_data[] =
  22   {
  23     TEST_f_i (ilogb, 1, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  24     TEST_f_i (ilogb, lit_e, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  25     TEST_f_i (ilogb, 1024, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  26     TEST_f_i (ilogb, -2000, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  27     TEST_f_i (ilogb, 0.5, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  28     TEST_f_i (ilogb, -0.5, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  29
  30 #if MANT_DIG >= 57
  31     TEST_f_i (ilogb, 0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  32     TEST_f_i (ilogb, -0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  33 #endif
  34
  35     TEST_f_i (ilogb, min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  36     TEST_f_i (ilogb, -min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  37     TEST_f_i (ilogb, min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  38     TEST_f_i (ilogb, -min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  39     TEST_f_i (ilogb, max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  40     TEST_f_i (ilogb, -max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  41
  42     /* ilogb (0.0) == FP_ILOGB0 plus invalid exception  */
  43     TEST_f_i (ilogb, 0.0, FP_ILOGB0, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  44     TEST_f_i (ilogb, -0.0, FP_ILOGB0, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  45     /* ilogb (qNaN) == FP_ILOGBNAN plus invalid exception  */
  46     TEST_f_i (ilogb, qnan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  47     TEST_f_i (ilogb, -qnan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  48     TEST_f_i (ilogb, snan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  49     TEST_f_i (ilogb, -snan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  50     /* ilogb (inf) == INT_MAX plus invalid exception  */
  51     TEST_f_i (ilogb, plus_infty, INT_MAX, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  52     /* ilogb (-inf) == INT_MAX plus invalid exception  */
  53     TEST_f_i (ilogb, minus_infty, INT_MAX, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
  54   };
  55
  56 static void
  57 ilogb_test (void)
  58 {
  59   ALL_RM_TEST (ilogb, 1, ilogb_test_data, RUN_TEST_LOOP_f_i, END);
  60 }
  61
  62 static void
  63 do_test (void)
  64 {
  65   ilogb_test ();
  66 }
  67
  68 /*
  69  * Local Variables:
  70  * mode:c
  71  * End:
  72  */