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annotate packages/language/c/libm/current/src/misc/infconst.c @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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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 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Cygnus eCos Public License
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12 // Version 1.0 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://sourceware.cygnus.com/ecos
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Cygnus Operating System, released
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22 // September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Cygnus. Portions created
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25 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
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26 // -------------------------------------------
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27 //
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28 //####COPYRIGHTEND####
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29 //===========================================================================
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30 //#####DESCRIPTIONBEGIN####
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31 //
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32 // Author(s): jlarmour@cygnus.co.uk
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33 // Contributors: jlarmour@cygnus.co.uk
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34 // Date: 1998-02-13
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35 // Purpose:
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36 // Description: Defines a constant cyg_libm_infinity so that we can define
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37 // HUGE_VAL
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38 // Usage:
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39 //
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40 //####DESCRIPTIONEND####
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41 //
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42 //===========================================================================
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43
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44 // CONFIGURATION
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45
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46 #include <pkgconf/libm.h> // Configuration header
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47
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48 // Include the Math library?
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49 #ifdef CYGPKG_LIBM
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50
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51 // INCLUDES
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52
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53 #include <cyg/infra/cyg_type.h> // Common type definitions and support
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54 // including endian-ness
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55 #include <math.h> // Main header for math library
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56 #include <sys/ieeefp.h> // Cyg_libm_ieee_double_shape_type
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57
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58
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59 // GLOBALS
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60
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61 #if (CYG_BYTEORDER == CYG_MSBFIRST) // Big endian
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62
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63 const Cyg_libm_ieee_double_shape_type cyg_libm_infinity = { {0x7ff00000, 0} };
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64
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65 #else // Little endian
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66
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67 const Cyg_libm_ieee_double_shape_type cyg_libm_infinity = { {0, 0x7ff00000} };
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68
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69 #endif
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70
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71 #endif // ifdef CYGPKG_LIBM
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72
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73 // EOF infconst.c