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mbed-dev/platform/mbed_preprocessor.h@6:0018763974d3, 2017-02-25 (annotated)

Committer:
elmot
Date:
Sat Feb 25 08:59:21 2017 +0000
Revision:
6:0018763974d3
Parent:
1:d0dfbce63a89 
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elmot 1:d0dfbce63a89 1 /** \addtogroup platform */
elmot 1:d0dfbce63a89 2 /** @{*/
elmot 1:d0dfbce63a89 3 /* mbed Microcontroller Library
elmot 1:d0dfbce63a89 4 * Copyright (c) 2006-2013 ARM Limited
elmot 1:d0dfbce63a89 5 *
elmot 1:d0dfbce63a89 6 * Licensed under the Apache License, Version 2.0 (the "License");
elmot 1:d0dfbce63a89 7 * you may not use this file except in compliance with the License.
elmot 1:d0dfbce63a89 8 * You may obtain a copy of the License at
elmot 1:d0dfbce63a89 9 *
elmot 1:d0dfbce63a89 10 * http://www.apache.org/licenses/LICENSE-2.0
elmot 1:d0dfbce63a89 11 *
elmot 1:d0dfbce63a89 12 * Unless required by applicable law or agreed to in writing, software
elmot 1:d0dfbce63a89 13 * distributed under the License is distributed on an "AS IS" BASIS,
elmot 1:d0dfbce63a89 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elmot 1:d0dfbce63a89 15 * See the License for the specific language governing permissions and
elmot 1:d0dfbce63a89 16 * limitations under the License.
elmot 1:d0dfbce63a89 17 */
elmot 1:d0dfbce63a89 18 #ifndef MBED_PREPROCESSOR_H
elmot 1:d0dfbce63a89 19 #define MBED_PREPROCESSOR_H
elmot 1:d0dfbce63a89 20
elmot 1:d0dfbce63a89 21
elmot 1:d0dfbce63a89 22 /** MBED_CONCAT
elmot 1:d0dfbce63a89 23 * Concatenate tokens together
elmot 1:d0dfbce63a89 24 *
elmot 1:d0dfbce63a89 25 * @note
elmot 1:d0dfbce63a89 26 * Expands tokens before concatenation
elmot 1:d0dfbce63a89 27 *
elmot 1:d0dfbce63a89 28 * @code
elmot 1:d0dfbce63a89 29 * // Creates a unique label based on the line number
elmot 1:d0dfbce63a89 30 * int MBED_CONCAT(UNIQUE_LABEL_, __LINE__) = 1;
elmot 1:d0dfbce63a89 31 * @endcode
elmot 1:d0dfbce63a89 32 */
elmot 1:d0dfbce63a89 33 #define MBED_CONCAT(a, b) MBED_CONCAT_(a, b)
elmot 1:d0dfbce63a89 34 #define MBED_CONCAT_(a, b) a##b
elmot 1:d0dfbce63a89 35
elmot 1:d0dfbce63a89 36 /** MBED_STRINGIFY
elmot 1:d0dfbce63a89 37 * Converts tokens into strings
elmot 1:d0dfbce63a89 38 *
elmot 1:d0dfbce63a89 39 * @note
elmot 1:d0dfbce63a89 40 * Expands tokens before stringification
elmot 1:d0dfbce63a89 41 *
elmot 1:d0dfbce63a89 42 * @code
elmot 1:d0dfbce63a89 43 * // Creates a string based on the parameters
elmot 1:d0dfbce63a89 44 * const char *c = MBED_STRINGIFY(This is a ridiculous way to create a string)
elmot 1:d0dfbce63a89 45 * @endcode
elmot 1:d0dfbce63a89 46 */
elmot 1:d0dfbce63a89 47 #define MBED_STRINGIFY(a) MBED_STRINGIFY_(a)
elmot 1:d0dfbce63a89 48 #define MBED_STRINGIFY_(a) #a
elmot 1:d0dfbce63a89 49
elmot 1:d0dfbce63a89 50
elmot 1:d0dfbce63a89 51 #endif
elmot 1:d0dfbce63a89 52
elmot 1:d0dfbce63a89 53 /** @}*/