The prosthetic control(MIT)
platform/mbed_preprocessor.h@0:20e0c61e0684, 2022-06-23 (annotated)
- Committer:
- ganlikun
- Date:
- Thu Jun 23 05:23:34 2022 +0000
- Revision:
- 0:20e0c61e0684
01
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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ganlikun | 0:20e0c61e0684 | 1 | /** \addtogroup platform */ |
ganlikun | 0:20e0c61e0684 | 2 | /** @{*/ |
ganlikun | 0:20e0c61e0684 | 3 | /** |
ganlikun | 0:20e0c61e0684 | 4 | * \defgroup platform_preprocessor preprocessor macros |
ganlikun | 0:20e0c61e0684 | 5 | * @{ |
ganlikun | 0:20e0c61e0684 | 6 | */ |
ganlikun | 0:20e0c61e0684 | 7 | |
ganlikun | 0:20e0c61e0684 | 8 | /* mbed Microcontroller Library |
ganlikun | 0:20e0c61e0684 | 9 | * Copyright (c) 2006-2013 ARM Limited |
ganlikun | 0:20e0c61e0684 | 10 | * SPDX-License-Identifier: Apache-2.0 |
ganlikun | 0:20e0c61e0684 | 11 | * |
ganlikun | 0:20e0c61e0684 | 12 | * Licensed under the Apache License, Version 2.0 (the "License"); |
ganlikun | 0:20e0c61e0684 | 13 | * you may not use this file except in compliance with the License. |
ganlikun | 0:20e0c61e0684 | 14 | * You may obtain a copy of the License at |
ganlikun | 0:20e0c61e0684 | 15 | * |
ganlikun | 0:20e0c61e0684 | 16 | * http://www.apache.org/licenses/LICENSE-2.0 |
ganlikun | 0:20e0c61e0684 | 17 | * |
ganlikun | 0:20e0c61e0684 | 18 | * Unless required by applicable law or agreed to in writing, software |
ganlikun | 0:20e0c61e0684 | 19 | * distributed under the License is distributed on an "AS IS" BASIS, |
ganlikun | 0:20e0c61e0684 | 20 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
ganlikun | 0:20e0c61e0684 | 21 | * See the License for the specific language governing permissions and |
ganlikun | 0:20e0c61e0684 | 22 | * limitations under the License. |
ganlikun | 0:20e0c61e0684 | 23 | */ |
ganlikun | 0:20e0c61e0684 | 24 | #ifndef MBED_PREPROCESSOR_H |
ganlikun | 0:20e0c61e0684 | 25 | #define MBED_PREPROCESSOR_H |
ganlikun | 0:20e0c61e0684 | 26 | |
ganlikun | 0:20e0c61e0684 | 27 | |
ganlikun | 0:20e0c61e0684 | 28 | /** MBED_CONCAT |
ganlikun | 0:20e0c61e0684 | 29 | * Concatenate tokens together |
ganlikun | 0:20e0c61e0684 | 30 | * |
ganlikun | 0:20e0c61e0684 | 31 | * @note |
ganlikun | 0:20e0c61e0684 | 32 | * Expands tokens before concatenation |
ganlikun | 0:20e0c61e0684 | 33 | * |
ganlikun | 0:20e0c61e0684 | 34 | * @code |
ganlikun | 0:20e0c61e0684 | 35 | * // Creates a unique label based on the line number |
ganlikun | 0:20e0c61e0684 | 36 | * int MBED_CONCAT(UNIQUE_LABEL_, __LINE__) = 1; |
ganlikun | 0:20e0c61e0684 | 37 | * @endcode |
ganlikun | 0:20e0c61e0684 | 38 | */ |
ganlikun | 0:20e0c61e0684 | 39 | #define MBED_CONCAT(a, b) MBED_CONCAT_(a, b) |
ganlikun | 0:20e0c61e0684 | 40 | #define MBED_CONCAT_(a, b) a##b |
ganlikun | 0:20e0c61e0684 | 41 | |
ganlikun | 0:20e0c61e0684 | 42 | /** MBED_STRINGIFY |
ganlikun | 0:20e0c61e0684 | 43 | * Converts tokens into strings |
ganlikun | 0:20e0c61e0684 | 44 | * |
ganlikun | 0:20e0c61e0684 | 45 | * @note |
ganlikun | 0:20e0c61e0684 | 46 | * Expands tokens before stringification |
ganlikun | 0:20e0c61e0684 | 47 | * |
ganlikun | 0:20e0c61e0684 | 48 | * @code |
ganlikun | 0:20e0c61e0684 | 49 | * // Creates a string based on the parameters |
ganlikun | 0:20e0c61e0684 | 50 | * const char *c = MBED_STRINGIFY(This is a ridiculous way to create a string) |
ganlikun | 0:20e0c61e0684 | 51 | * @endcode |
ganlikun | 0:20e0c61e0684 | 52 | */ |
ganlikun | 0:20e0c61e0684 | 53 | #define MBED_STRINGIFY(a) MBED_STRINGIFY_(a) |
ganlikun | 0:20e0c61e0684 | 54 | #define MBED_STRINGIFY_(a) #a |
ganlikun | 0:20e0c61e0684 | 55 | |
ganlikun | 0:20e0c61e0684 | 56 | /** MBED_STRLEN |
ganlikun | 0:20e0c61e0684 | 57 | * Reports string token length |
ganlikun | 0:20e0c61e0684 | 58 | * |
ganlikun | 0:20e0c61e0684 | 59 | * @note |
ganlikun | 0:20e0c61e0684 | 60 | * Expands tokens before calculating length |
ganlikun | 0:20e0c61e0684 | 61 | * |
ganlikun | 0:20e0c61e0684 | 62 | * @code |
ganlikun | 0:20e0c61e0684 | 63 | * // Get string length |
ganlikun | 0:20e0c61e0684 | 64 | * const int len = MBED_STRLEN("Get the length") |
ganlikun | 0:20e0c61e0684 | 65 | * @endcode |
ganlikun | 0:20e0c61e0684 | 66 | */ |
ganlikun | 0:20e0c61e0684 | 67 | #define MBED_STRLEN(a) MBED_STRLEN_(a) |
ganlikun | 0:20e0c61e0684 | 68 | #define MBED_STRLEN_(a) (sizeof(a) - 1) |
ganlikun | 0:20e0c61e0684 | 69 | |
ganlikun | 0:20e0c61e0684 | 70 | /** MBED_COUNT_VA_ARGS(...) |
ganlikun | 0:20e0c61e0684 | 71 | * Reports number of tokens passed |
ganlikun | 0:20e0c61e0684 | 72 | * |
ganlikun | 0:20e0c61e0684 | 73 | * @note |
ganlikun | 0:20e0c61e0684 | 74 | * Token limit is 16 |
ganlikun | 0:20e0c61e0684 | 75 | * |
ganlikun | 0:20e0c61e0684 | 76 | * @code |
ganlikun | 0:20e0c61e0684 | 77 | * // Get number of arguments |
ganlikun | 0:20e0c61e0684 | 78 | * const int count = MBED_COUNT_VA_ARGS("Address 0x%x, Data[0] = %d Data[1] = %d", 0x20001234, 10, 20) |
ganlikun | 0:20e0c61e0684 | 79 | * @endcode |
ganlikun | 0:20e0c61e0684 | 80 | */ |
ganlikun | 0:20e0c61e0684 | 81 | #define MBED_COUNT_VA_ARGS(...) GET_NTH_ARG_(__VA_ARGS__, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1) |
ganlikun | 0:20e0c61e0684 | 82 | #define GET_NTH_ARG_(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, N, ...) N |
ganlikun | 0:20e0c61e0684 | 83 | |
ganlikun | 0:20e0c61e0684 | 84 | #endif |
ganlikun | 0:20e0c61e0684 | 85 | |
ganlikun | 0:20e0c61e0684 | 86 | /** @}*/ |
ganlikun | 0:20e0c61e0684 | 87 | /** @}*/ |
ganlikun | 0:20e0c61e0684 | 88 | |
ganlikun | 0:20e0c61e0684 | 89 |