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Merge from eCos master repository on 2002-05-23-21:39:14-BST
author jlarmour
date Thu, 23 May 2002 22:59:51 +0000
parents e0c0827131d1
children 44054a00feca
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1 //===========================================================================
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2 //
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3 // infconst.c
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4 //
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5 // Infinity constant
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6 //
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7 //===========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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37 // at http://sources.redhat.com/ecos/ecos-license/
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
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40 //===========================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): jlarmour
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44 // Contributors: jlarmour
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45 // Date: 1998-02-13
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46 // Purpose:
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47 // Description: Defines a constant cyg_libm_infinity so that we can define
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48 // HUGE_VAL
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49 // Usage:
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50 //
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51 //####DESCRIPTIONEND####
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52 //
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53 //===========================================================================
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54
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55 // CONFIGURATION
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56
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57 #include <pkgconf/libm.h> // Configuration header
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58
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59 // Include the Math library?
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60 #ifdef CYGPKG_LIBM
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61
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62 // INCLUDES
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63
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64 #include <cyg/infra/cyg_type.h> // Common type definitions and support
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65 // including endian-ness
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66 #include <math.h> // Main header for math library
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67 #include <sys/ieeefp.h> // Cyg_libm_ieee_double_shape_type
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68
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69
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70 // GLOBALS
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71
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72 #if (CYG_BYTEORDER == CYG_MSBFIRST) // Big endian
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73
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74 const Cyg_libm_ieee_double_shape_type cyg_libm_infinity = { {0x7ff00000, 0} };
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75
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76 #else // Little endian
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77
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78 const Cyg_libm_ieee_double_shape_type cyg_libm_infinity = { {0, 0x7ff00000} };
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79
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80 #endif
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81
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82 #endif // ifdef CYGPKG_LIBM
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83
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84 // EOF infconst.c