math/libm-test-atan2.inc

   1 /* Test atan2.
   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_ff_f_data atan2_test_data[] =
  22   {
  23     /* atan2 (y,inf) == +0 for finite y > 0 or +0.  */
  24     TEST_ff_f (atan2, 1, plus_infty, 0, ERRNO_UNCHANGED),
  25     TEST_ff_f (atan2, plus_zero, plus_infty, 0, ERRNO_UNCHANGED),
  26     TEST_ff_f (atan2, min_value, plus_infty, 0, ERRNO_UNCHANGED),
  27     TEST_ff_f (atan2, min_subnorm_value, plus_infty, 0, ERRNO_UNCHANGED),
  28     TEST_ff_f (atan2, max_value, plus_infty, 0, ERRNO_UNCHANGED),
  29
  30     /* atan2 (y,inf) == -0 for finite y < 0 or -0.  */
  31     TEST_ff_f (atan2, -1, plus_infty, minus_zero, ERRNO_UNCHANGED),
  32     TEST_ff_f (atan2, minus_zero, plus_infty, minus_zero, ERRNO_UNCHANGED),
  33     TEST_ff_f (atan2, -min_value, plus_infty, minus_zero, ERRNO_UNCHANGED),
  34     TEST_ff_f (atan2, -min_subnorm_value, plus_infty, minus_zero, ERRNO_UNCHANGED),
  35     TEST_ff_f (atan2, -max_value, plus_infty, minus_zero, ERRNO_UNCHANGED),
  36
  37     /* atan2(+inf, x) == pi/2 for finite x.  */
  38     TEST_ff_f (atan2, plus_infty, 1, lit_pi_2_d, ERRNO_UNCHANGED),
  39     TEST_ff_f (atan2, plus_infty, plus_zero, lit_pi_2_d, ERRNO_UNCHANGED),
  40     TEST_ff_f (atan2, plus_infty, min_value, lit_pi_2_d, ERRNO_UNCHANGED),
  41     TEST_ff_f (atan2, plus_infty, min_subnorm_value, lit_pi_2_d, ERRNO_UNCHANGED),
  42     TEST_ff_f (atan2, plus_infty, max_value, lit_pi_2_d, ERRNO_UNCHANGED),
  43     TEST_ff_f (atan2, plus_infty, -1, lit_pi_2_d, ERRNO_UNCHANGED),
  44     TEST_ff_f (atan2, plus_infty, minus_zero, lit_pi_2_d, ERRNO_UNCHANGED),
  45     TEST_ff_f (atan2, plus_infty, -min_value, lit_pi_2_d, ERRNO_UNCHANGED),
  46     TEST_ff_f (atan2, plus_infty, -min_subnorm_value, lit_pi_2_d, ERRNO_UNCHANGED),
  47     TEST_ff_f (atan2, plus_infty, -max_value, lit_pi_2_d, ERRNO_UNCHANGED),
  48
  49     /* atan2(-inf, x) == -pi/2 for finite x.  */
  50     TEST_ff_f (atan2, minus_infty, 1, -lit_pi_2_d, ERRNO_UNCHANGED),
  51     TEST_ff_f (atan2, minus_infty, plus_zero, -lit_pi_2_d, ERRNO_UNCHANGED),
  52     TEST_ff_f (atan2, minus_infty, min_value, -lit_pi_2_d, ERRNO_UNCHANGED),
  53     TEST_ff_f (atan2, minus_infty, min_subnorm_value, -lit_pi_2_d, ERRNO_UNCHANGED),
  54     TEST_ff_f (atan2, minus_infty, max_value, -lit_pi_2_d, ERRNO_UNCHANGED),
  55     TEST_ff_f (atan2, minus_infty, -1, -lit_pi_2_d, ERRNO_UNCHANGED),
  56     TEST_ff_f (atan2, minus_infty, minus_zero, -lit_pi_2_d, ERRNO_UNCHANGED),
  57     TEST_ff_f (atan2, minus_infty, -min_value, -lit_pi_2_d, ERRNO_UNCHANGED),
  58     TEST_ff_f (atan2, minus_infty, -min_subnorm_value, -lit_pi_2_d, ERRNO_UNCHANGED),
  59     TEST_ff_f (atan2, minus_infty, -max_value, -lit_pi_2_d, ERRNO_UNCHANGED),
  60
  61     /* atan2 (y,-inf) == +pi for finite y > 0 or +0.  */
  62     TEST_ff_f (atan2, 1, minus_infty, lit_pi, ERRNO_UNCHANGED),
  63     TEST_ff_f (atan2, plus_zero, minus_infty, lit_pi, ERRNO_UNCHANGED),
  64     TEST_ff_f (atan2, min_value, minus_infty, lit_pi, ERRNO_UNCHANGED),
  65     TEST_ff_f (atan2, min_subnorm_value, minus_infty, lit_pi, ERRNO_UNCHANGED),
  66     TEST_ff_f (atan2, max_value, minus_infty, lit_pi, ERRNO_UNCHANGED),
  67
  68     /* atan2 (y,-inf) == -pi for finite y < 0 or -0.  */
  69     TEST_ff_f (atan2, -1, minus_infty, -lit_pi, ERRNO_UNCHANGED),
  70     TEST_ff_f (atan2, minus_zero, minus_infty, -lit_pi, ERRNO_UNCHANGED),
  71     TEST_ff_f (atan2, -min_value, minus_infty, -lit_pi, ERRNO_UNCHANGED),
  72     TEST_ff_f (atan2, -min_subnorm_value, minus_infty, -lit_pi, ERRNO_UNCHANGED),
  73     TEST_ff_f (atan2, -max_value, minus_infty, -lit_pi, ERRNO_UNCHANGED),
  74
  75     TEST_ff_f (atan2, plus_infty, plus_infty, lit_pi_4_d, ERRNO_UNCHANGED),
  76     TEST_ff_f (atan2, minus_infty, plus_infty, -lit_pi_4_d, ERRNO_UNCHANGED),
  77     TEST_ff_f (atan2, plus_infty, minus_infty, lit_pi_3_m_4_d, ERRNO_UNCHANGED),
  78     TEST_ff_f (atan2, minus_infty, minus_infty, -lit_pi_3_m_4_d, ERRNO_UNCHANGED),
  79     TEST_ff_f (atan2, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  80     TEST_ff_f (atan2, qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  81     TEST_ff_f (atan2, -qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  82     TEST_ff_f (atan2, -qnan_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  83     TEST_ff_f (atan2, snan_value, qnan_value, qnan_value, INVALID_EXCEPTION),
  84     TEST_ff_f (atan2, snan_value, -qnan_value, qnan_value, INVALID_EXCEPTION),
  85     TEST_ff_f (atan2, -snan_value, qnan_value, qnan_value, INVALID_EXCEPTION),
  86     TEST_ff_f (atan2, -snan_value, -qnan_value, qnan_value, INVALID_EXCEPTION),
  87     TEST_ff_f (atan2, qnan_value, snan_value, qnan_value, INVALID_EXCEPTION),
  88     TEST_ff_f (atan2, qnan_value, -snan_value, qnan_value, INVALID_EXCEPTION),
  89     TEST_ff_f (atan2, -qnan_value, snan_value, qnan_value, INVALID_EXCEPTION),
  90     TEST_ff_f (atan2, -qnan_value, -snan_value, qnan_value, INVALID_EXCEPTION),
  91     TEST_ff_f (atan2, snan_value, snan_value, qnan_value, INVALID_EXCEPTION),
  92     TEST_ff_f (atan2, snan_value, -snan_value, qnan_value, INVALID_EXCEPTION),
  93     TEST_ff_f (atan2, -snan_value, snan_value, qnan_value, INVALID_EXCEPTION),
  94     TEST_ff_f (atan2, -snan_value, -snan_value, qnan_value, INVALID_EXCEPTION),
  95     TEST_ff_f (atan2, qnan_value, plus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  96     TEST_ff_f (atan2, qnan_value, minus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  97     TEST_ff_f (atan2, qnan_value, plus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  98     TEST_ff_f (atan2, qnan_value, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  99     TEST_ff_f (atan2, qnan_value, 1, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 100     TEST_ff_f (atan2, qnan_value, -1, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 101     TEST_ff_f (atan2, qnan_value, min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 102     TEST_ff_f (atan2, qnan_value, -min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 103     TEST_ff_f (atan2, qnan_value, min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 104     TEST_ff_f (atan2, qnan_value, -min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 105     TEST_ff_f (atan2, qnan_value, max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 106     TEST_ff_f (atan2, qnan_value, -max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 107     TEST_ff_f (atan2, -qnan_value, plus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 108     TEST_ff_f (atan2, -qnan_value, minus_infty, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 109     TEST_ff_f (atan2, -qnan_value, plus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 110     TEST_ff_f (atan2, -qnan_value, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 111     TEST_ff_f (atan2, -qnan_value, 1, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 112     TEST_ff_f (atan2, -qnan_value, -1, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 113     TEST_ff_f (atan2, -qnan_value, min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 114     TEST_ff_f (atan2, -qnan_value, -min_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 115     TEST_ff_f (atan2, -qnan_value, min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 116     TEST_ff_f (atan2, -qnan_value, -min_subnorm_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 117     TEST_ff_f (atan2, -qnan_value, max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 118     TEST_ff_f (atan2, -qnan_value, -max_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 119     TEST_ff_f (atan2, snan_value, plus_infty, qnan_value, INVALID_EXCEPTION),
 120     TEST_ff_f (atan2, snan_value, minus_infty, qnan_value, INVALID_EXCEPTION),
 121     TEST_ff_f (atan2, snan_value, plus_zero, qnan_value, INVALID_EXCEPTION),
 122     TEST_ff_f (atan2, snan_value, minus_zero, qnan_value, INVALID_EXCEPTION),
 123     TEST_ff_f (atan2, snan_value, 1, qnan_value, INVALID_EXCEPTION),
 124     TEST_ff_f (atan2, snan_value, -1, qnan_value, INVALID_EXCEPTION),
 125     TEST_ff_f (atan2, snan_value, min_value, qnan_value, INVALID_EXCEPTION),
 126     TEST_ff_f (atan2, snan_value, -min_value, qnan_value, INVALID_EXCEPTION),
 127     TEST_ff_f (atan2, snan_value, min_subnorm_value, qnan_value, INVALID_EXCEPTION),
 128     TEST_ff_f (atan2, snan_value, -min_subnorm_value, qnan_value, INVALID_EXCEPTION),
 129     TEST_ff_f (atan2, snan_value, max_value, qnan_value, INVALID_EXCEPTION),
 130     TEST_ff_f (atan2, snan_value, -max_value, qnan_value, INVALID_EXCEPTION),
 131     TEST_ff_f (atan2, -snan_value, plus_infty, qnan_value, INVALID_EXCEPTION),
 132     TEST_ff_f (atan2, -snan_value, minus_infty, qnan_value, INVALID_EXCEPTION),
 133     TEST_ff_f (atan2, -snan_value, plus_zero, qnan_value, INVALID_EXCEPTION),
 134     TEST_ff_f (atan2, -snan_value, minus_zero, qnan_value, INVALID_EXCEPTION),
 135     TEST_ff_f (atan2, -snan_value, 1, qnan_value, INVALID_EXCEPTION),
 136     TEST_ff_f (atan2, -snan_value, -1, qnan_value, INVALID_EXCEPTION),
 137     TEST_ff_f (atan2, -snan_value, min_value, qnan_value, INVALID_EXCEPTION),
 138     TEST_ff_f (atan2, -snan_value, -min_value, qnan_value, INVALID_EXCEPTION),
 139     TEST_ff_f (atan2, -snan_value, min_subnorm_value, qnan_value, INVALID_EXCEPTION),
 140     TEST_ff_f (atan2, -snan_value, -min_subnorm_value, qnan_value, INVALID_EXCEPTION),
 141     TEST_ff_f (atan2, -snan_value, max_value, qnan_value, INVALID_EXCEPTION),
 142     TEST_ff_f (atan2, -snan_value, -max_value, qnan_value, INVALID_EXCEPTION),
 143     TEST_ff_f (atan2, plus_infty, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 144     TEST_ff_f (atan2, minus_infty, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 145     TEST_ff_f (atan2, plus_zero, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 146     TEST_ff_f (atan2, minus_zero, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 147     TEST_ff_f (atan2, 1, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 148     TEST_ff_f (atan2, -1, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 149     TEST_ff_f (atan2, min_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 150     TEST_ff_f (atan2, -min_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 151     TEST_ff_f (atan2, min_subnorm_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 152     TEST_ff_f (atan2, -min_subnorm_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 153     TEST_ff_f (atan2, max_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 154     TEST_ff_f (atan2, -max_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 155     TEST_ff_f (atan2, plus_infty, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 156     TEST_ff_f (atan2, minus_infty, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 157     TEST_ff_f (atan2, plus_zero, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 158     TEST_ff_f (atan2, minus_zero, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 159     TEST_ff_f (atan2, 1, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 160     TEST_ff_f (atan2, -1, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 161     TEST_ff_f (atan2, min_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 162     TEST_ff_f (atan2, -min_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 163     TEST_ff_f (atan2, min_subnorm_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 164     TEST_ff_f (atan2, -min_subnorm_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 165     TEST_ff_f (atan2, max_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 166     TEST_ff_f (atan2, -max_value, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 167     TEST_ff_f (atan2, plus_infty, snan_value, qnan_value, INVALID_EXCEPTION),
 168     TEST_ff_f (atan2, minus_infty, snan_value, qnan_value, INVALID_EXCEPTION),
 169     TEST_ff_f (atan2, plus_zero, snan_value, qnan_value, INVALID_EXCEPTION),
 170     TEST_ff_f (atan2, minus_zero, snan_value, qnan_value, INVALID_EXCEPTION),
 171     TEST_ff_f (atan2, 1, snan_value, qnan_value, INVALID_EXCEPTION),
 172     TEST_ff_f (atan2, -1, snan_value, qnan_value, INVALID_EXCEPTION),
 173     TEST_ff_f (atan2, min_value, snan_value, qnan_value, INVALID_EXCEPTION),
 174     TEST_ff_f (atan2, -min_value, snan_value, qnan_value, INVALID_EXCEPTION),
 175     TEST_ff_f (atan2, min_subnorm_value, snan_value, qnan_value, INVALID_EXCEPTION),
 176     TEST_ff_f (atan2, -min_subnorm_value, snan_value, qnan_value, INVALID_EXCEPTION),
 177     TEST_ff_f (atan2, max_value, snan_value, qnan_value, INVALID_EXCEPTION),
 178     TEST_ff_f (atan2, -max_value, snan_value, qnan_value, INVALID_EXCEPTION),
 179     TEST_ff_f (atan2, plus_infty, -snan_value, qnan_value, INVALID_EXCEPTION),
 180     TEST_ff_f (atan2, minus_infty, -snan_value, qnan_value, INVALID_EXCEPTION),
 181     TEST_ff_f (atan2, plus_zero, -snan_value, qnan_value, INVALID_EXCEPTION),
 182     TEST_ff_f (atan2, minus_zero, -snan_value, qnan_value, INVALID_EXCEPTION),
 183     TEST_ff_f (atan2, 1, -snan_value, qnan_value, INVALID_EXCEPTION),
 184     TEST_ff_f (atan2, -1, -snan_value, qnan_value, INVALID_EXCEPTION),
 185     TEST_ff_f (atan2, min_value, -snan_value, qnan_value, INVALID_EXCEPTION),
 186     TEST_ff_f (atan2, -min_value, -snan_value, qnan_value, INVALID_EXCEPTION),
 187     TEST_ff_f (atan2, min_subnorm_value, -snan_value, qnan_value, INVALID_EXCEPTION),
 188     TEST_ff_f (atan2, -min_subnorm_value, -snan_value, qnan_value, INVALID_EXCEPTION),
 189     TEST_ff_f (atan2, max_value, -snan_value, qnan_value, INVALID_EXCEPTION),
 190     TEST_ff_f (atan2, -max_value, -snan_value, qnan_value, INVALID_EXCEPTION),
 191
 192     AUTO_TESTS_ff_f (atan2),
 193   };
 194
 195 static void
 196 atan2_test (void)
 197 {
 198   ALL_RM_TEST (atan2, 0, atan2_test_data, RUN_TEST_LOOP_ff_f, END);
 199 }
 200
 201 static void
 202 do_test (void)
 203 {
 204   atan2_test ();
 205 }
 206
 207 /*
 208  * Local Variables:
 209  * mode:c
 210  * End:
 211  */