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annotate packages/error/current/include/errno.h @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
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children 51b34619b677
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1 #ifndef CYGONCE_ERROR_ERRNO_H
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2 #define CYGONCE_ERROR_ERRNO_H
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3 /*========================================================================
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4 //
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5 // errno.h
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6 //
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7 // ISO C errno variable and constants
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8 //
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9 //========================================================================
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10 //####COPYRIGHTBEGIN####
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11 //
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12 // -------------------------------------------
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13 // The contents of this file are subject to the Red Hat eCos Public License
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14 // Version 1.1 (the "License"); you may not use this file except in
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15 // compliance with the License. You may obtain a copy of the License at
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16 // http://www.redhat.com/
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17 //
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18 // Software distributed under the License is distributed on an "AS IS"
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19 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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20 // License for the specific language governing rights and limitations under
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21 // the License.
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22 //
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23 // The Original Code is eCos - Embedded Configurable Operating System,
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24 // released September 30, 1998.
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25 //
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26 // The Initial Developer of the Original Code is Red Hat.
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27 // Portions created by Red Hat are
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28 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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29 // All Rights Reserved.
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30 // -------------------------------------------
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31 //
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32 //####COPYRIGHTEND####
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33 //========================================================================
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34 //#####DESCRIPTIONBEGIN####
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35 //
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36 // Author(s): jlarmour
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37 // Contributors: jlarmour
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38 // Date: 2000-04-14
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39 // Purpose: This file provides the errno variable (or more strictly
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40 // expression) required by ISO C and POSIX 1003.1
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41 // Description:
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42 // Usage: Do not include this file directly - use #include <errno.h>
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43 //
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44 //####DESCRIPTIONEND####
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45 //
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46 //======================================================================*/
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47
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48 /* CONFIGURATION */
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49
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50 #include <pkgconf/error.h> /* Configuration header */
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51
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52 #ifdef CYGPKG_ERROR_ERRNO
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53
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54 /* INCLUDES */
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55
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56 #include <cyg/error/codes.h> /* for Cyg_ErrNo */
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57
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58 #ifdef __cplusplus
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59 extern "C" {
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60 #endif
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61
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62 /* FUNCTION PROTOTYPES */
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63
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64
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65 #ifdef CYGSEM_ERROR_PER_THREAD_ERRNO
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66
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67 extern Cyg_ErrNo * const
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68 cyg_error_get_errno_p( void ) __attribute__((const));
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69
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70 #endif /* ifdef CYGSEM_ERROR_PER_THREAD_ERRNO */
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71
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72
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73 /* VARIABLES */
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74
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75 #ifdef CYGSEM_ERROR_PER_THREAD_ERRNO
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76 # define errno (*cyg_error_get_errno_p()) /* Per-thread error status */
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77 #else
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78 extern Cyg_ErrNo errno; /* Global error status */
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79 #endif /* ifdef CYGSEM_ERROR_PER_THREAD_ERRNO */
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80
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81 #ifdef __cplusplus
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82 } /* extern "C" */
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83 #endif
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84
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85 #endif /* ifdef CYGPKG_ERROR_ERRNO */
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86
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87 #endif /* CYGONCE_ERROR_ERRNO_H multiple inclusion protection */
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88
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89 /* EOF errno.h */