gabriel della-monica / mbed-src

mbed library sources

Fork of mbed-src by mbed official

api/error.h@140:ca60b7a31055, 2014-04-01 (annotated)

Committer:
mbed_official
Date:
Tue Apr 01 10:00:07 2014 +0100
Revision:
140:ca60b7a31055
Parent:
25:002053b42e66
Child:
228:85a676113daa
Synchronized with git revision fdcc1e387426ce216bc17175b73bcd5f4aececff



Full URL: https://github.com/mbedmicro/mbed/commit/fdcc1e387426ce216bc17175b73bcd5f4aececff/



Changed error(...) to a weak function

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #ifndef MBED_ERROR_H
bogdanm 13:0645d8841f51 17 #define MBED_ERROR_H
bogdanm 13:0645d8841f51 18
bogdanm 13:0645d8841f51 19 /** To generate a fatal compile-time error, you can use the pre-processor #error directive.
bogdanm 13:0645d8841f51 20 *
bogdanm 13:0645d8841f51 21 * @code
bogdanm 13:0645d8841f51 22 * #error "That shouldn't have happened!"
bogdanm 13:0645d8841f51 23 * @endcode
bogdanm 13:0645d8841f51 24 *
bogdanm 13:0645d8841f51 25 * If the compiler evaluates this line, it will report the error and stop the compile.
bogdanm 13:0645d8841f51 26 *
bogdanm 13:0645d8841f51 27 * For example, you could use this to check some user-defined compile-time variables:
bogdanm 13:0645d8841f51 28 *
bogdanm 13:0645d8841f51 29 * @code
bogdanm 13:0645d8841f51 30 * #define NUM_PORTS 7
bogdanm 13:0645d8841f51 31 * #if (NUM_PORTS > 4)
bogdanm 13:0645d8841f51 32 * #error "NUM_PORTS must be less than 4"
bogdanm 13:0645d8841f51 33 * #endif
bogdanm 13:0645d8841f51 34 * @endcode
bogdanm 13:0645d8841f51 35 *
bogdanm 13:0645d8841f51 36 * Reporting Run-Time Errors:
bogdanm 13:0645d8841f51 37 * To generate a fatal run-time error, you can use the mbed error() function.
bogdanm 13:0645d8841f51 38 *
bogdanm 13:0645d8841f51 39 * @code
bogdanm 13:0645d8841f51 40 * error("That shouldn't have happened!");
bogdanm 13:0645d8841f51 41 * @endcode
bogdanm 13:0645d8841f51 42 *
bogdanm 13:0645d8841f51 43 * If the mbed running the program executes this function, it will print the
bogdanm 13:0645d8841f51 44 * message via the USB serial port, and then die with the blue lights of death!
bogdanm 13:0645d8841f51 45 *
bogdanm 13:0645d8841f51 46 * The message can use printf-style formatting, so you can report variables in the
bogdanm 13:0645d8841f51 47 * message too. For example, you could use this to check a run-time condition:
bogdanm 13:0645d8841f51 48 *
bogdanm 13:0645d8841f51 49 * @code
bogdanm 13:0645d8841f51 50 * if(x >= 5) {
bogdanm 13:0645d8841f51 51 * error("expected x to be less than 5, but got %d", x);
bogdanm 13:0645d8841f51 52 * }
bogdanm 13:0645d8841f51 53 * #endcode
bogdanm 13:0645d8841f51 54 */
bogdanm 13:0645d8841f51 55
mbed_official 140:ca60b7a31055 56 #include "toolchain.h"
bogdanm 13:0645d8841f51 57
mbed_official 140:ca60b7a31055 58 #ifdef __cplusplus
mbed_official 140:ca60b7a31055 59 extern "C" {
mbed_official 140:ca60b7a31055 60 #endif
mbed_official 140:ca60b7a31055 61
mbed_official 140:ca60b7a31055 62 void error(const char* format, ...);
mbed_official 140:ca60b7a31055 63
mbed_official 140:ca60b7a31055 64 #ifdef __cplusplus
mbed_official 140:ca60b7a31055 65 }
bogdanm 13:0645d8841f51 66 #endif
bogdanm 13:0645d8841f51 67
bogdanm 13:0645d8841f51 68 #endif