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annotate tests/test-ceilf1.c @ 40231:9b3c79fdfe0b

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strtod: fix clash with strtold Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817). * lib/strtod.c (compute_minus_zero, minus_zero): Simplify by remving the macro / external variable, and having just a function. User changed. This avoids the need for an external variable that might clash.
author Paul Eggert <eggert@cs.ucla.edu>
date Mon, 11 Mar 2019 16:40:29 -0700
parents b06060465f09
children
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1 /* Test of rounding towards positive infinity.
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2 Copyright (C) 2007-2019 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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16
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17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
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18
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19 #include <config.h>
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20
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21 #include <math.h>
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22
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23 #include "signature.h"
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24 SIGNATURE_CHECK (ceilf, float, (float));
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25
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26 #include "isnanf-nolibm.h"
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27 #include "minus-zero.h"
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28 #include "infinity.h"
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29 #include "nan.h"
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30 #include "macros.h"
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31
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32 /* If IEEE compliance was not requested, the ICC compiler inlines its
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33 own ceilf assembly that turns -0.0f to 0.0f; but that is a correct
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34 result when IEEE is not enforced. To avoid spurious failure, we
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35 have to provide this dummy function in order to outsmart ICC's
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36 inlining, and call our ceilf through a function pointer. */
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37 static float
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38 dummy (float f)
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39 {
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40 return 0;
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41 }
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42
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43 int
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44 main (int argc, char **argv _GL_UNUSED)
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45 {
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46 float (*my_ceilf) (float) = argc ? ceilf : dummy;
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47
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48 /* Zero. */
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49 ASSERT (my_ceilf (0.0f) == 0.0f);
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50 ASSERT (my_ceilf (minus_zerof) == 0.0f);
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51 /* Positive numbers. */
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52 ASSERT (my_ceilf (0.3f) == 1.0f);
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53 ASSERT (my_ceilf (0.7f) == 1.0f);
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54 ASSERT (my_ceilf (1.0f) == 1.0f);
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55 ASSERT (my_ceilf (1.001f) == 2.0f);
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56 ASSERT (my_ceilf (1.5f) == 2.0f);
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57 ASSERT (my_ceilf (1.999f) == 2.0f);
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58 ASSERT (my_ceilf (2.0f) == 2.0f);
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59 ASSERT (my_ceilf (65535.99f) == 65536.0f);
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60 ASSERT (my_ceilf (65536.0f) == 65536.0f);
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61 ASSERT (my_ceilf (2.341e31f) == 2.341e31f);
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62 /* Negative numbers. */
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63 ASSERT (my_ceilf (-0.3f) == 0.0f);
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64 ASSERT (my_ceilf (-0.7f) == 0.0f);
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65 ASSERT (my_ceilf (-1.0f) == -1.0f);
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66 ASSERT (my_ceilf (-1.5f) == -1.0f);
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67 ASSERT (my_ceilf (-1.999f) == -1.0f);
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68 ASSERT (my_ceilf (-2.0f) == -2.0f);
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69 ASSERT (my_ceilf (-65535.99f) == -65535.0f);
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70 ASSERT (my_ceilf (-65536.0f) == -65536.0f);
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71 ASSERT (my_ceilf (-2.341e31f) == -2.341e31f);
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72 /* Infinite numbers. */
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73 ASSERT (my_ceilf (Infinityf ()) == Infinityf ());
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74 ASSERT (my_ceilf (- Infinityf ()) == - Infinityf ());
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75 /* NaNs. */
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76 ASSERT (isnanf (my_ceilf (NaNf ())));
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77
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78 return 0;
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79 }