mouvement AX12 petit robot version 2
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Diff: mbed/error.h
- Revision:
- 2:99b1cb0d9f5e
diff -r b3ff77670606 -r 99b1cb0d9f5e mbed/error.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed/error.h Tue Apr 18 16:02:40 2017 +0000 @@ -0,0 +1,60 @@ +/* mbed Microcontroller Library - error + * Copyright (c) 2006-2009 ARM Limited. All rights reserved. + */ + +#ifndef MBED_ERROR_H +#define MBED_ERROR_H + +/* Reporting Compile-Time Errors: + * To generate a fatal compile-time error, you can use the pre-processor #error directive. + * + * > #error "That shouldn't have happened!" + * + * If the compiler evaluates this line, it will report the error and stop the compile. + * + * For example, you could use this to check some user-defined compile-time variables: + * + * > #define NUM_PORTS 7 + * > #if (NUM_PORTS > 4) + * > #error "NUM_PORTS must be less than 4" + * > #endif + * + * Reporting Run-Time Errors: + * To generate a fatal run-time error, you can use the mbed error() function. + * + * > error("That shouldn't have happened!"); + * + * If the mbed running the program executes this function, it will print the + * message via the USB serial port, and then die with the blue lights of death! + * + * The message can use printf-style formatting, so you can report variables in the + * message too. For example, you could use this to check a run-time condition: + * + * > if(x >= 5) { + * > error("expected x to be less than 5, but got %d", x); + * > } + */ + +#if 0 // for documentation only +/* Function: error + * Report a fatal runtime error + * + * Outputs the specified error message to stderr so it will appear via the USB + * serial port, and then calls exit(1) to die with the blue lights of death. + * + * Variables: + * format - printf-style format string, followed by associated variables + */ +void error(const char* format, ...); +#endif + +#include <stdlib.h> + +#ifdef NDEBUG + #define error(...) (exit(1)) +#else + #include <stdio.h> + #define error(...) (fprintf(stderr, __VA_ARGS__), exit(1)) +#endif + +#endif