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1 /* Test of modff() function. |
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2 Copyright (C) 2010-2015 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 <http://www.gnu.org/licenses/>. */ |
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16 |
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17 /* Written by Bruno Haible <bruno@clisp.org>, 2010-2011. */ |
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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 (modff, float, (float, float *)); |
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25 |
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26 #include <float.h> |
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27 |
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28 #include "macros.h" |
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29 |
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30 #define DOUBLE float |
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31 #define L_(literal) literal##f |
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32 #define MANT_DIG FLT_MANT_DIG |
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33 #define MODF modff |
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34 #define RANDOM randomf |
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35 #include "test-modf.h" |
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36 |
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37 int |
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38 main () |
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39 { |
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40 /* A particular positive value. */ |
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41 x = 5.972407f; |
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42 y = modff (x, &z); |
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43 ASSERT (y >= 0.972406f && y <= 0.972408f); |
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44 ASSERT (z == 5.0f); |
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45 |
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46 /* A particular negative value. */ |
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47 x = -5.972407f; |
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48 y = modff (x, &z); |
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49 ASSERT (y >= -0.972408f && y <= -0.972406f); |
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50 ASSERT (z == -5.0f); |
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51 |
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52 test_function (); |
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53 |
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54 return 0; |
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55 } |
