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1 /* Temporary library support for decimal floating point.
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145
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2 Copyright (C) 2005-2020 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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14 License for more details.
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15
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16 Under Section 7 of GPL version 3, you are granted additional
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17 permissions described in the GCC Runtime Library Exception, version
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18 3.1, as published by the Free Software Foundation.
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19
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20 You should have received a copy of the GNU General Public License and
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21 a copy of the GCC Runtime Library Exception along with this program;
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22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 <http://www.gnu.org/licenses/>. */
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24
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25 #include "dconfig.h"
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26 #include "decContext.h"
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27 #include "decimal128.h"
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28 #include "decimal64.h"
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29 #include "decimal32.h"
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30
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31 void __host_to_ieee_32 (_Decimal32, decimal32 *);
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32 void __host_to_ieee_64 (_Decimal64, decimal64 *);
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33 void __host_to_ieee_128 (_Decimal128, decimal128 *);
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34
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35 extern int isinfd32 (_Decimal32);
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36 extern int isinfd64 (_Decimal64);
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37 extern int isinfd128 (_Decimal128);
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38 uint32_t __dec_byte_swap (uint32_t);
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39
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40 int
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41 isinfd32 (_Decimal32 arg)
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42 {
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43 decNumber dn;
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44 decimal32 d32;
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45
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46 __host_to_ieee_32 (arg, &d32);
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47 decimal32ToNumber (&d32, &dn);
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48 return (decNumberIsInfinite (&dn));
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49 }
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50
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51 int
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52 isinfd64 (_Decimal64 arg)
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53 {
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54 decNumber dn;
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55 decimal64 d64;
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56
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57 __host_to_ieee_64 (arg, &d64);
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58 decimal64ToNumber (&d64, &dn);
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59 return (decNumberIsInfinite (&dn));
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60 }
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61
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62 int
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63 isinfd128 (_Decimal128 arg)
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64 {
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65 decNumber dn;
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66 decimal128 d128;
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67
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68 __host_to_ieee_128 (arg, &d128);
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69 decimal128ToNumber (&d128, &dn);
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70 return (decNumberIsInfinite (&dn));
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71 }
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