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77 lines
2.3 KiB
77 lines
2.3 KiB
5 years ago
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/*
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* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under both the BSD-style license (found in the
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* LICENSE file in the root directory of this source tree) and the GPLv2 (found
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* in the COPYING file in the root directory of this source tree).
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* You may select, at your option, one of the above-listed licenses.
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*/
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/* Note : this module is expected to remain private, do not expose it */
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#ifndef ERROR_H_MODULE
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#define ERROR_H_MODULE
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#if defined (__cplusplus)
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extern "C" {
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#endif
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/* ****************************************
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* Dependencies
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******************************************/
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#include <stddef.h> /* size_t */
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#include "zstd_errors.h" /* enum list */
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/* ****************************************
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* Compiler-specific
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******************************************/
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#if defined(__GNUC__)
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# define ERR_STATIC static __attribute__((unused))
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#elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
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# define ERR_STATIC static inline
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#elif defined(_MSC_VER)
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# define ERR_STATIC static __inline
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#else
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# define ERR_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */
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#endif
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/*-****************************************
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* Customization (error_public.h)
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******************************************/
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typedef ZSTD_ErrorCode ERR_enum;
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#define PREFIX(name) ZSTD_error_##name
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/*-****************************************
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* Error codes handling
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******************************************/
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#undef ERROR /* reported already defined on VS 2015 (Rich Geldreich) */
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#define ERROR(name) ZSTD_ERROR(name)
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#define ZSTD_ERROR(name) ((size_t)-PREFIX(name))
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ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); }
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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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/*-****************************************
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* Error Strings
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******************************************/
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const char* ERR_getErrorString(ERR_enum code); /* error_private.c */
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ERR_STATIC const char* ERR_getErrorName(size_t code)
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{
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return ERR_getErrorString(ERR_getErrorCode(code));
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}
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#if defined (__cplusplus)
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}
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#endif
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#endif /* ERROR_H_MODULE */
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