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annotate contrib/python-zstandard/zstd/common/error_private.h @ 48674:f7086f6173f8 stable

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dirstate-v2: rename the configuration to enable the format The rename of the old experimental name was overlooked before the 6.0 release. We rename everything to use the new name (and keep the released name as an alias for compatibility). Differential Revision: https://phab.mercurial-scm.org/D12129
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 01 Feb 2022 16:36:20 +0100
parents b1fb341d8a61
children
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1 /*
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2 * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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3 * All rights reserved.
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4 *
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5 * This source code is licensed under both the BSD-style license (found in the
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6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
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7 * in the COPYING file in the root directory of this source tree).
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8 * You may select, at your option, one of the above-listed licenses.
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9 */
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11 /* Note : this module is expected to remain private, do not expose it */
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12
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13 #ifndef ERROR_H_MODULE
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14 #define ERROR_H_MODULE
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16 #if defined (__cplusplus)
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17 extern "C" {
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18 #endif
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21 /* ****************************************
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22 * Dependencies
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23 ******************************************/
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24 #include <stddef.h> /* size_t */
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25 #include "zstd_errors.h" /* enum list */
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28 /* ****************************************
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29 * Compiler-specific
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30 ******************************************/
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31 #if defined(__GNUC__)
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32 # define ERR_STATIC static __attribute__((unused))
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33 #elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
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34 # define ERR_STATIC static inline
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35 #elif defined(_MSC_VER)
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36 # define ERR_STATIC static __inline
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37 #else
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38 # define ERR_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */
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39 #endif
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42 /*-****************************************
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43 * Customization (error_public.h)
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44 ******************************************/
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45 typedef ZSTD_ErrorCode ERR_enum;
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46 #define PREFIX(name) ZSTD_error_##name
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49 /*-****************************************
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50 * Error codes handling
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51 ******************************************/
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52 #undef ERROR /* reported already defined on VS 2015 (Rich Geldreich) */
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53 #define ERROR(name) ZSTD_ERROR(name)
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54 #define ZSTD_ERROR(name) ((size_t)-PREFIX(name))
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55
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56 ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); }
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57
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58 ERR_STATIC ERR_enum ERR_getErrorCode(size_t code) { if (!ERR_isError(code)) return (ERR_enum)0; return (ERR_enum) (0-code); }
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61 /*-****************************************
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62 * Error Strings
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63 ******************************************/
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65 const char* ERR_getErrorString(ERR_enum code); /* error_private.c */
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66
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67 ERR_STATIC const char* ERR_getErrorName(size_t code)
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68 {
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69 return ERR_getErrorString(ERR_getErrorCode(code));
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70 }
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71
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72 #if defined (__cplusplus)
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73 }
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74 #endif
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75
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76 #endif /* ERROR_H_MODULE */