OpenCV 4.5.3(日本語機械翻訳)
logger.h
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2 * Software License Agreement (BSD License)
3 *
4 * Copyright 2008-2009 Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
5 * Copyright 2008-2009 David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
6 *
7 * THE BSD LICENSE
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30
31 #ifndef OPENCV_FLANN_LOGGER_H
32 #define OPENCV_FLANN_LOGGER_H
33
35
36 #include <stdio.h>
37 #include <stdarg.h>
38
39 #include "defines.h"
40
41
42 namespace cvflann
43{
44
45 class Logger
46{
47 Logger() : stream(stdout), logLevel(FLANN_LOG_WARN) {}
48
49 ~Logger()
50 {
51 if ((stream!=NULL)&&(stream!=stdout)) {
52 fclose(stream);
53 }
54 }
55
56 static Logger& instance()
57 {
58 static Logger logger;
59 return logger;
60 }
61
62 void _setDestination(const char* name)
63 {
64 if (name==NULL) {
65 stream = stdout;
66 }
67 else {
68 #ifdef _MSC_VER
69 if (fopen_s(&stream, name, "w") != 0)
70 stream = NULL;
71 #else
72 stream = fopen(name,"w");
73 #endif
74 if (stream == NULL) {
75 stream = stdout;
76 }
77 }
78 }
79
80 int _log(int level, const char* fmt, va_list arglist)
81 {
82 if (level > logLevel ) return -1;
83 int ret = vfprintf(stream, fmt, arglist);
84 return ret;
85 }
86
87 public:
92 static void setLevel(int level) { instance().logLevel = level; }
93
98 static void setDestination(const char* name) { instance()._setDestination(name); }
99
106 static int log(int level, const char* fmt, ...)
107 {
108 va_list arglist;
109 va_start(arglist, fmt);
110 int ret = instance()._log(level,fmt,arglist);
111 va_end(arglist);
112 return ret;
113 }
114
115 #define LOG_METHOD(NAME,LEVEL) \
116 static int NAME(const char* fmt, ...) \
117 { \
118 va_list ap; \
119 va_start(ap, fmt); \
120 int ret = instance()._log(LEVEL, fmt, ap); \
121 va_end(ap); \
122 return ret; \
123 }
124
125 LOG_METHOD(fatal, FLANN_LOG_FATAL)
126 LOG_METHOD(error, FLANN_LOG_ERROR)
127 LOG_METHOD(warn, FLANN_LOG_WARN)
128 LOG_METHOD(info, FLANN_LOG_INFO)
129
130 private:
131 FILE* stream;
132 int logLevel;
133};
134
135}
136
138
139 #endif //OPENCV_FLANN_LOGGER_H
cv::log
CV_EXPORTS_W void log(InputArray src, OutputArray dst)
Calculates the natural logarithm of every array element.
cv::error
CV_EXPORTS CV_NORETURN void error(const Exception &exc)
Signals an error and raises the exception.
構築: doxygen 1.9.2