mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

platform/mbed_preprocessor.h@181:57724642e740, 2018-02-16 (annotated)

Committer:
AnnaBridge
Date:
Fri Feb 16 16:09:33 2018 +0000
Revision:
181:57724642e740
Parent:
178:79309dc6340a
Child:
189:f392fc9709a3
mbed-dev library. Release version 159.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 151:5eaa88a5bcc7 1 /** \addtogroup platform */
<> 151:5eaa88a5bcc7 2 /** @{*/
AnnaBridge 178:79309dc6340a 3 /**
AnnaBridge 178:79309dc6340a 4 * \defgroup platform_preprocessor preprocessor macros
AnnaBridge 178:79309dc6340a 5 * @{
AnnaBridge 178:79309dc6340a 6 */
AnnaBridge 178:79309dc6340a 7
<> 151:5eaa88a5bcc7 8 /* mbed Microcontroller Library
<> 151:5eaa88a5bcc7 9 * Copyright (c) 2006-2013 ARM Limited
<> 151:5eaa88a5bcc7 10 *
<> 151:5eaa88a5bcc7 11 * Licensed under the Apache License, Version 2.0 (the "License");
<> 151:5eaa88a5bcc7 12 * you may not use this file except in compliance with the License.
<> 151:5eaa88a5bcc7 13 * You may obtain a copy of the License at
<> 151:5eaa88a5bcc7 14 *
<> 151:5eaa88a5bcc7 15 * http://www.apache.org/licenses/LICENSE-2.0
<> 151:5eaa88a5bcc7 16 *
<> 151:5eaa88a5bcc7 17 * Unless required by applicable law or agreed to in writing, software
<> 151:5eaa88a5bcc7 18 * distributed under the License is distributed on an "AS IS" BASIS,
<> 151:5eaa88a5bcc7 19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 151:5eaa88a5bcc7 20 * See the License for the specific language governing permissions and
<> 151:5eaa88a5bcc7 21 * limitations under the License.
<> 151:5eaa88a5bcc7 22 */
<> 151:5eaa88a5bcc7 23 #ifndef MBED_PREPROCESSOR_H
<> 151:5eaa88a5bcc7 24 #define MBED_PREPROCESSOR_H
<> 151:5eaa88a5bcc7 25
<> 151:5eaa88a5bcc7 26
<> 151:5eaa88a5bcc7 27 /** MBED_CONCAT
<> 151:5eaa88a5bcc7 28 * Concatenate tokens together
<> 151:5eaa88a5bcc7 29 *
<> 151:5eaa88a5bcc7 30 * @note
<> 151:5eaa88a5bcc7 31 * Expands tokens before concatenation
<> 151:5eaa88a5bcc7 32 *
<> 151:5eaa88a5bcc7 33 * @code
<> 151:5eaa88a5bcc7 34 * // Creates a unique label based on the line number
<> 151:5eaa88a5bcc7 35 * int MBED_CONCAT(UNIQUE_LABEL_, __LINE__) = 1;
<> 151:5eaa88a5bcc7 36 * @endcode
<> 151:5eaa88a5bcc7 37 */
<> 151:5eaa88a5bcc7 38 #define MBED_CONCAT(a, b) MBED_CONCAT_(a, b)
<> 151:5eaa88a5bcc7 39 #define MBED_CONCAT_(a, b) a##b
<> 151:5eaa88a5bcc7 40
<> 151:5eaa88a5bcc7 41 /** MBED_STRINGIFY
<> 151:5eaa88a5bcc7 42 * Converts tokens into strings
<> 151:5eaa88a5bcc7 43 *
<> 151:5eaa88a5bcc7 44 * @note
<> 151:5eaa88a5bcc7 45 * Expands tokens before stringification
<> 151:5eaa88a5bcc7 46 *
<> 151:5eaa88a5bcc7 47 * @code
<> 151:5eaa88a5bcc7 48 * // Creates a string based on the parameters
<> 151:5eaa88a5bcc7 49 * const char *c = MBED_STRINGIFY(This is a ridiculous way to create a string)
<> 151:5eaa88a5bcc7 50 * @endcode
<> 151:5eaa88a5bcc7 51 */
<> 151:5eaa88a5bcc7 52 #define MBED_STRINGIFY(a) MBED_STRINGIFY_(a)
<> 151:5eaa88a5bcc7 53 #define MBED_STRINGIFY_(a) #a
<> 151:5eaa88a5bcc7 54
AnnaBridge 181:57724642e740 55 /** MBED_STRLEN
AnnaBridge 181:57724642e740 56 * Reports string token length
AnnaBridge 181:57724642e740 57 *
AnnaBridge 181:57724642e740 58 * @note
AnnaBridge 181:57724642e740 59 * Expands tokens before calculating length
AnnaBridge 181:57724642e740 60 *
AnnaBridge 181:57724642e740 61 * @code
AnnaBridge 181:57724642e740 62 * // Get string length
AnnaBridge 181:57724642e740 63 * const int len = MBED_STRLEN("Get the length")
AnnaBridge 181:57724642e740 64 * @endcode
AnnaBridge 181:57724642e740 65 */
AnnaBridge 181:57724642e740 66 #define MBED_STRLEN(a) MBED_STRLEN_(a)
AnnaBridge 181:57724642e740 67 #define MBED_STRLEN_(a) (sizeof(a) - 1)
AnnaBridge 181:57724642e740 68
AnnaBridge 181:57724642e740 69 /** MBED_COUNT_VA_ARGS(...)
AnnaBridge 181:57724642e740 70 * Reports number of tokens passed
AnnaBridge 181:57724642e740 71 *
AnnaBridge 181:57724642e740 72 * @note
AnnaBridge 181:57724642e740 73 * Token limit is 16
AnnaBridge 181:57724642e740 74 *
AnnaBridge 181:57724642e740 75 * @code
AnnaBridge 181:57724642e740 76 * // Get number of arguments
AnnaBridge 181:57724642e740 77 * const int count = MBED_COUNT_VA_ARGS("Address 0x%x, Data[0] = %d Data[1] = %d", 0x20001234, 10, 20)
AnnaBridge 181:57724642e740 78 * @endcode
AnnaBridge 181:57724642e740 79 */
AnnaBridge 181:57724642e740 80 #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)
AnnaBridge 181:57724642e740 81 #define GET_NTH_ARG_(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, N, ...) N
<> 151:5eaa88a5bcc7 82
<> 151:5eaa88a5bcc7 83 #endif
<> 151:5eaa88a5bcc7 84
<> 151:5eaa88a5bcc7 85 /** @}*/
AnnaBridge 178:79309dc6340a 86 /** @}*/