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comparison mupdf-source/thirdparty/tesseract/src/ccutil/errcode.cpp @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /**********************************************************************
2 * File: errcode.cpp (Formerly error.c)
3 * Description: Generic error handler function
4 * Author: Ray Smith
5 *
6 * (C) Copyright 1989, Hewlett-Packard Ltd.
7 ** Licensed under the Apache License, Version 2.0 (the "License");
8 ** you may not use this file except in compliance with the License.
9 ** You may obtain a copy of the License at
10 ** http://www.apache.org/licenses/LICENSE-2.0
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 *
17 **********************************************************************/
18
19 #include "errcode.h"
20
21 #include <cstdarg>
22 #include <cstdio>
23 #include <cstdlib>
24 #include <cstring>
25 #include <iostream> // for std::cerr
26 #include <sstream> // for std::stringstream
27
28 namespace tesseract {
29
30 constexpr ERRCODE BADERRACTION("Illegal error action");
31 #define MAX_MSG 1024
32
33 /**********************************************************************
34 * error
35 *
36 * Print an error message and continue, exit or abort according to action.
37 * Makes use of error messages and numbers in a common place.
38 *
39 **********************************************************************/
40 void ERRCODE::error( // handle error
41 const char *caller, // name of caller
42 TessErrorLogCode action, // action to take
43 const char *format, ... // special message
44 ) const {
45 va_list args; // variable args
46 std::stringstream msg;
47
48 if (caller != nullptr) {
49 // name of caller
50 msg << caller << ':';
51 }
52 // actual message
53 msg << "Error:" << message;
54 if (format != nullptr) {
55 char str[MAX_MSG];
56 va_start(args, format); // variable list
57 // print remainder
58 std::vsnprintf(str, sizeof(str), format, args);
59 // ensure termination
60 str[sizeof(str) - 1] = '\0';
61 va_end(args);
62 msg << ':' << str;
63 }
64
65 std::cerr << msg.str() << '\n';
66
67 switch (action) {
68 case DBG:
69 case TESSLOG:
70 return; // report only
71 case TESSEXIT:
72 case ABORT:
73 #if !defined(NDEBUG)
74 // Create a deliberate abnormal exit as the stack trace is more useful
75 // that way. This is done only in debug builds, because the
76 // error message "segmentation fault" confuses most normal users.
77 # if defined(__GNUC__)
78 __builtin_trap();
79 # else
80 *reinterpret_cast<int *>(0) = 0;
81 # endif
82 #endif
83 abort();
84 default:
85 BADERRACTION.error("error", ABORT);
86 }
87 }
88
89 void ERRCODE::error(const char *caller, TessErrorLogCode action) const {
90 error(caller, action, nullptr);
91 }
92
93 } // namespace tesseract