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Dependents:   STM32F031_blink_LED_2

api/mbed_error.h@0:38ccae254a29, 2014-10-18 (annotated)

Committer:
mega64
Date:
Sat Oct 18 02:40:17 2014 +0000
Revision:
0:38ccae254a29
only for STM32F030F4

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 0:38ccae254a29 1 /* mbed Microcontroller Library
mega64 0:38ccae254a29 2 * Copyright (c) 2006-2013 ARM Limited
mega64 0:38ccae254a29 3 *
mega64 0:38ccae254a29 4 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 0:38ccae254a29 5 * you may not use this file except in compliance with the License.
mega64 0:38ccae254a29 6 * You may obtain a copy of the License at
mega64 0:38ccae254a29 7 *
mega64 0:38ccae254a29 8 * http://www.apache.org/licenses/LICENSE-2.0
mega64 0:38ccae254a29 9 *
mega64 0:38ccae254a29 10 * Unless required by applicable law or agreed to in writing, software
mega64 0:38ccae254a29 11 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 0:38ccae254a29 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 0:38ccae254a29 13 * See the License for the specific language governing permissions and
mega64 0:38ccae254a29 14 * limitations under the License.
mega64 0:38ccae254a29 15 */
mega64 0:38ccae254a29 16 #ifndef MBED_ERROR_H
mega64 0:38ccae254a29 17 #define MBED_ERROR_H
mega64 0:38ccae254a29 18
mega64 0:38ccae254a29 19 /** To generate a fatal compile-time error, you can use the pre-processor #error directive.
mega64 0:38ccae254a29 20 *
mega64 0:38ccae254a29 21 * @code
mega64 0:38ccae254a29 22 * #error "That shouldn't have happened!"
mega64 0:38ccae254a29 23 * @endcode
mega64 0:38ccae254a29 24 *
mega64 0:38ccae254a29 25 * If the compiler evaluates this line, it will report the error and stop the compile.
mega64 0:38ccae254a29 26 *
mega64 0:38ccae254a29 27 * For example, you could use this to check some user-defined compile-time variables:
mega64 0:38ccae254a29 28 *
mega64 0:38ccae254a29 29 * @code
mega64 0:38ccae254a29 30 * #define NUM_PORTS 7
mega64 0:38ccae254a29 31 * #if (NUM_PORTS > 4)
mega64 0:38ccae254a29 32 * #error "NUM_PORTS must be less than 4"
mega64 0:38ccae254a29 33 * #endif
mega64 0:38ccae254a29 34 * @endcode
mega64 0:38ccae254a29 35 *
mega64 0:38ccae254a29 36 * Reporting Run-Time Errors:
mega64 0:38ccae254a29 37 * To generate a fatal run-time error, you can use the mbed error() function.
mega64 0:38ccae254a29 38 *
mega64 0:38ccae254a29 39 * @code
mega64 0:38ccae254a29 40 * error("That shouldn't have happened!");
mega64 0:38ccae254a29 41 * @endcode
mega64 0:38ccae254a29 42 *
mega64 0:38ccae254a29 43 * If the mbed running the program executes this function, it will print the
mega64 0:38ccae254a29 44 * message via the USB serial port, and then die with the blue lights of death!
mega64 0:38ccae254a29 45 *
mega64 0:38ccae254a29 46 * The message can use printf-style formatting, so you can report variables in the
mega64 0:38ccae254a29 47 * message too. For example, you could use this to check a run-time condition:
mega64 0:38ccae254a29 48 *
mega64 0:38ccae254a29 49 * @code
mega64 0:38ccae254a29 50 * if(x >= 5) {
mega64 0:38ccae254a29 51 * error("expected x to be less than 5, but got %d", x);
mega64 0:38ccae254a29 52 * }
mega64 0:38ccae254a29 53 * #endcode
mega64 0:38ccae254a29 54 */
mega64 0:38ccae254a29 55
mega64 0:38ccae254a29 56 #ifdef __cplusplus
mega64 0:38ccae254a29 57 extern "C" {
mega64 0:38ccae254a29 58 #endif
mega64 0:38ccae254a29 59
mega64 0:38ccae254a29 60 void error(const char* format, ...);
mega64 0:38ccae254a29 61
mega64 0:38ccae254a29 62 #ifdef __cplusplus
mega64 0:38ccae254a29 63 }
mega64 0:38ccae254a29 64 #endif
mega64 0:38ccae254a29 65
mega64 0:38ccae254a29 66 #endif