config AX12
Fork of configure_ax12_test_bras_module by
mbed/error.h@2:91b6646ea994, 2017-02-01 (annotated)
- Committer:
- clementlignie
- Date:
- Wed Feb 01 13:42:30 2017 +0000
- Revision:
- 2:91b6646ea994
- Parent:
- 0:c03cffe402df
config AX12
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
slowness | 0:c03cffe402df | 1 | /* mbed Microcontroller Library - error |
slowness | 0:c03cffe402df | 2 | * Copyright (c) 2006-2009 ARM Limited. All rights reserved. |
slowness | 0:c03cffe402df | 3 | */ |
slowness | 0:c03cffe402df | 4 | |
slowness | 0:c03cffe402df | 5 | #ifndef MBED_ERROR_H |
slowness | 0:c03cffe402df | 6 | #define MBED_ERROR_H |
slowness | 0:c03cffe402df | 7 | |
slowness | 0:c03cffe402df | 8 | /* Reporting Compile-Time Errors: |
slowness | 0:c03cffe402df | 9 | * To generate a fatal compile-time error, you can use the pre-processor #error directive. |
slowness | 0:c03cffe402df | 10 | * |
slowness | 0:c03cffe402df | 11 | * > #error "That shouldn't have happened!" |
slowness | 0:c03cffe402df | 12 | * |
slowness | 0:c03cffe402df | 13 | * If the compiler evaluates this line, it will report the error and stop the compile. |
slowness | 0:c03cffe402df | 14 | * |
slowness | 0:c03cffe402df | 15 | * For example, you could use this to check some user-defined compile-time variables: |
slowness | 0:c03cffe402df | 16 | * |
slowness | 0:c03cffe402df | 17 | * > #define NUM_PORTS 7 |
slowness | 0:c03cffe402df | 18 | * > #if (NUM_PORTS > 4) |
slowness | 0:c03cffe402df | 19 | * > #error "NUM_PORTS must be less than 4" |
slowness | 0:c03cffe402df | 20 | * > #endif |
slowness | 0:c03cffe402df | 21 | * |
slowness | 0:c03cffe402df | 22 | * Reporting Run-Time Errors: |
slowness | 0:c03cffe402df | 23 | * To generate a fatal run-time error, you can use the mbed error() function. |
slowness | 0:c03cffe402df | 24 | * |
slowness | 0:c03cffe402df | 25 | * > error("That shouldn't have happened!"); |
slowness | 0:c03cffe402df | 26 | * |
slowness | 0:c03cffe402df | 27 | * If the mbed running the program executes this function, it will print the |
slowness | 0:c03cffe402df | 28 | * message via the USB serial port, and then die with the blue lights of death! |
slowness | 0:c03cffe402df | 29 | * |
slowness | 0:c03cffe402df | 30 | * The message can use printf-style formatting, so you can report variables in the |
slowness | 0:c03cffe402df | 31 | * message too. For example, you could use this to check a run-time condition: |
slowness | 0:c03cffe402df | 32 | * |
slowness | 0:c03cffe402df | 33 | * > if(x >= 5) { |
slowness | 0:c03cffe402df | 34 | * > error("expected x to be less than 5, but got %d", x); |
slowness | 0:c03cffe402df | 35 | * > } |
slowness | 0:c03cffe402df | 36 | */ |
slowness | 0:c03cffe402df | 37 | |
slowness | 0:c03cffe402df | 38 | #if 0 // for documentation only |
slowness | 0:c03cffe402df | 39 | /* Function: error |
slowness | 0:c03cffe402df | 40 | * Report a fatal runtime error |
slowness | 0:c03cffe402df | 41 | * |
slowness | 0:c03cffe402df | 42 | * Outputs the specified error message to stderr so it will appear via the USB |
slowness | 0:c03cffe402df | 43 | * serial port, and then calls exit(1) to die with the blue lights of death. |
slowness | 0:c03cffe402df | 44 | * |
slowness | 0:c03cffe402df | 45 | * Variables: |
slowness | 0:c03cffe402df | 46 | * format - printf-style format string, followed by associated variables |
slowness | 0:c03cffe402df | 47 | */ |
slowness | 0:c03cffe402df | 48 | void error(const char* format, ...); |
slowness | 0:c03cffe402df | 49 | #endif |
slowness | 0:c03cffe402df | 50 | |
slowness | 0:c03cffe402df | 51 | #include <stdlib.h> |
slowness | 0:c03cffe402df | 52 | |
slowness | 0:c03cffe402df | 53 | #ifdef NDEBUG |
slowness | 0:c03cffe402df | 54 | #define error(...) (exit(1)) |
slowness | 0:c03cffe402df | 55 | #else |
slowness | 0:c03cffe402df | 56 | #include <stdio.h> |
slowness | 0:c03cffe402df | 57 | #define error(...) (fprintf(stderr, __VA_ARGS__), exit(1)) |
slowness | 0:c03cffe402df | 58 | #endif |
slowness | 0:c03cffe402df | 59 | |
slowness | 0:c03cffe402df | 60 | #endif |