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11fdf7f2 | 1 | /* |
7c673cae FG |
2 | * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. |
3 | * All rights reserved. | |
4 | * | |
11fdf7f2 TL |
5 | * This source code is licensed under both the BSD-style license (found in the |
6 | * LICENSE file in the root directory of this source tree) and the GPLv2 (found | |
7 | * in the COPYING file in the root directory of this source tree). | |
8 | * You may select, at your option, one of the above-listed licenses. | |
7c673cae FG |
9 | */ |
10 | ||
11 | /* Note : this module is expected to remain private, do not expose it */ | |
12 | ||
13 | #ifndef ERROR_H_MODULE | |
14 | #define ERROR_H_MODULE | |
15 | ||
16 | #if defined (__cplusplus) | |
17 | extern "C" { | |
18 | #endif | |
19 | ||
20 | ||
21 | /* **************************************** | |
22 | * Dependencies | |
23 | ******************************************/ | |
24 | #include <stddef.h> /* size_t */ | |
25 | #include "zstd_errors.h" /* enum list */ | |
26 | ||
27 | ||
28 | /* **************************************** | |
29 | * Compiler-specific | |
30 | ******************************************/ | |
31 | #if defined(__GNUC__) | |
32 | # define ERR_STATIC static __attribute__((unused)) | |
33 | #elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) | |
34 | # define ERR_STATIC static inline | |
35 | #elif defined(_MSC_VER) | |
36 | # define ERR_STATIC static __inline | |
37 | #else | |
38 | # define ERR_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */ | |
39 | #endif | |
40 | ||
41 | ||
42 | /*-**************************************** | |
43 | * Customization (error_public.h) | |
44 | ******************************************/ | |
45 | typedef ZSTD_ErrorCode ERR_enum; | |
46 | #define PREFIX(name) ZSTD_error_##name | |
47 | ||
48 | ||
49 | /*-**************************************** | |
50 | * Error codes handling | |
51 | ******************************************/ | |
11fdf7f2 TL |
52 | #undef ERROR /* reported already defined on VS 2015 (Rich Geldreich) */ |
53 | #define ERROR(name) ZSTD_ERROR(name) | |
54 | #define ZSTD_ERROR(name) ((size_t)-PREFIX(name)) | |
7c673cae FG |
55 | |
56 | ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); } | |
57 | ||
58 | ERR_STATIC ERR_enum ERR_getErrorCode(size_t code) { if (!ERR_isError(code)) return (ERR_enum)0; return (ERR_enum) (0-code); } | |
59 | ||
60 | ||
61 | /*-**************************************** | |
62 | * Error Strings | |
63 | ******************************************/ | |
64 | ||
65 | const char* ERR_getErrorString(ERR_enum code); /* error_private.c */ | |
66 | ||
67 | ERR_STATIC const char* ERR_getErrorName(size_t code) | |
68 | { | |
69 | return ERR_getErrorString(ERR_getErrorCode(code)); | |
70 | } | |
71 | ||
72 | #if defined (__cplusplus) | |
73 | } | |
74 | #endif | |
75 | ||
76 | #endif /* ERROR_H_MODULE */ |