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debug.h

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00001 /* Copyright (c) 2012 mbed.org, MIT License
00002  *
00003  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00005  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00006  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00007  * furnished to do so, subject to the following conditions:
00008  *
00009  * The above copyright notice and this permission notice shall be included in all copies or
00010  * substantial portions of the Software.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017  */
00018  
00019 #ifndef DEBUG_H
00020 #define DEBUG_H
00021 
00022 /** @file debug.h */
00023 
00024 #ifndef NDEBUG
00025 
00026 #include <stdarg.h>
00027 #include <stdio.h>
00028 
00029 /** Output a debug message
00030  * 
00031  * @param format printf-style format string, followed by variables
00032  */
00033 static inline void debug(const char *format, ...) {
00034     va_list args;
00035     va_start(args, format);
00036     vfprintf(stderr, format, args);
00037     va_end(args);
00038 }
00039 
00040 /** Conditionally output a debug message
00041  * 
00042  * @param condition output only if condition is true
00043  * @param format printf-style format string, followed by variables
00044  */
00045 static inline void debug_if(bool condition, const char *format, ...) {
00046     if(condition) {
00047         va_list args;
00048         va_start(args, format);
00049         vfprintf(stderr, format, args);
00050         va_end(args);
00051     }
00052 }
00053 
00054 #else
00055 
00056 static inline void debug(const char *format, ...) {}
00057 static inline void debug(bool condition, const char *format, ...) {}
00058 
00059 #endif
00060 
00061 #endif