mbed_debug.h

00001 
00002 /** \addtogroup platform */
00003 /** @{*/
00004 /**
00005  * \defgroup platform_debug Debug functions
00006  * @{
00007  */
00008  
00009 /* mbed Microcontroller Library
00010  * Copyright (c) 2006-2013 ARM Limited
00011  *
00012  * Licensed under the Apache License, Version 2.0 (the "License");
00013  * you may not use this file except in compliance with the License.
00014  * You may obtain a copy of the License at
00015  *
00016  *     http://www.apache.org/licenses/LICENSE-2.0
00017  *
00018  * Unless required by applicable law or agreed to in writing, software
00019  * distributed under the License is distributed on an "AS IS" BASIS,
00020  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00021  * See the License for the specific language governing permissions and
00022  * limitations under the License.
00023  */
00024 #ifndef MBED_DEBUG_H
00025 #define MBED_DEBUG_H
00026 #if DEVICE_STDIO_MESSAGES
00027 #include <stdio.h>
00028 #include <stdarg.h>
00029 #endif
00030 
00031 #ifdef __cplusplus
00032 extern "C" {
00033 #endif
00034 
00035 
00036 /** Output a debug message
00037  *
00038  * @param format printf-style format string, followed by variables
00039  */
00040 static inline void debug(const char *format, ...) {
00041 #if DEVICE_STDIO_MESSAGES && !defined(NDEBUG)
00042     va_list args;
00043     va_start(args, format);
00044     vfprintf(stderr, format, args);
00045     va_end(args);
00046 #endif
00047 }
00048 
00049 
00050 /** Conditionally output a debug message
00051  *
00052  * NOTE: If the condition is constant false (== 0) and the compiler optimization
00053  * level is greater than 0, then the whole function will be compiled away.
00054  *
00055  * @param condition output only if condition is true (!= 0)
00056  * @param format printf-style format string, followed by variables
00057  */
00058 static inline void debug_if(int condition, const char *format, ...) {
00059 #if DEVICE_STDIO_MESSAGES && !defined(NDEBUG)
00060     if (condition) {
00061         va_list args;
00062         va_start(args, format);
00063         vfprintf(stderr, format, args);
00064         va_end(args);
00065     }
00066 #endif
00067 }
00068 
00069 
00070 #ifdef __cplusplus
00071 }
00072 #endif
00073 
00074 #endif
00075 
00076 /**@}*/
00077 
00078 /**@}*/
00079