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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

platform/mbed_assert.h@157:e7ca05fa8600, 2017-11-09 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 09 11:14:10 2017 +0000
Revision:
157:e7ca05fa8600
Parent:
156:ff21514d8981
Child:
158:1c57384330a6
Release 155 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1
AnnaBridge 156:ff21514d8981 2 /** \addtogroup platform */
AnnaBridge 156:ff21514d8981 3 /** @{*/
AnnaBridge 156:ff21514d8981 4 /* mbed Microcontroller Library
AnnaBridge 156:ff21514d8981 5 * Copyright (c) 2006-2013 ARM Limited
AnnaBridge 156:ff21514d8981 6 *
AnnaBridge 156:ff21514d8981 7 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 156:ff21514d8981 8 * you may not use this file except in compliance with the License.
AnnaBridge 156:ff21514d8981 9 * You may obtain a copy of the License at
AnnaBridge 156:ff21514d8981 10 *
AnnaBridge 156:ff21514d8981 11 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 156:ff21514d8981 12 *
AnnaBridge 156:ff21514d8981 13 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 156:ff21514d8981 14 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 156:ff21514d8981 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 156:ff21514d8981 16 * See the License for the specific language governing permissions and
AnnaBridge 156:ff21514d8981 17 * limitations under the License.
AnnaBridge 156:ff21514d8981 18 */
AnnaBridge 156:ff21514d8981 19 #ifndef MBED_ASSERT_H
AnnaBridge 156:ff21514d8981 20 #define MBED_ASSERT_H
AnnaBridge 156:ff21514d8981 21
AnnaBridge 156:ff21514d8981 22 #include "mbed_preprocessor.h"
AnnaBridge 156:ff21514d8981 23
AnnaBridge 156:ff21514d8981 24 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 25 extern "C" {
AnnaBridge 156:ff21514d8981 26 #endif
AnnaBridge 156:ff21514d8981 27
AnnaBridge 156:ff21514d8981 28 /** Internal mbed assert function which is invoked when MBED_ASSERT macro failes.
AnnaBridge 156:ff21514d8981 29 * This function is active only if NDEBUG is not defined prior to including this
AnnaBridge 156:ff21514d8981 30 * assert header file.
AnnaBridge 156:ff21514d8981 31 * In case of MBED_ASSERT failing condition, error() is called with the assertation message.
AnnaBridge 156:ff21514d8981 32 * @param expr Expresion to be checked.
AnnaBridge 156:ff21514d8981 33 * @param file File where assertation failed.
AnnaBridge 156:ff21514d8981 34 * @param line Failing assertation line number.
AnnaBridge 156:ff21514d8981 35 */
AnnaBridge 156:ff21514d8981 36 void mbed_assert_internal(const char *expr, const char *file, int line);
AnnaBridge 156:ff21514d8981 37
AnnaBridge 156:ff21514d8981 38 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 39 }
AnnaBridge 156:ff21514d8981 40 #endif
AnnaBridge 156:ff21514d8981 41
AnnaBridge 156:ff21514d8981 42 #ifdef NDEBUG
AnnaBridge 156:ff21514d8981 43 #define MBED_ASSERT(expr) ((void)0)
AnnaBridge 156:ff21514d8981 44
AnnaBridge 156:ff21514d8981 45 #else
AnnaBridge 156:ff21514d8981 46 #define MBED_ASSERT(expr) \
AnnaBridge 156:ff21514d8981 47 do { \
AnnaBridge 156:ff21514d8981 48 if (!(expr)) { \
AnnaBridge 156:ff21514d8981 49 mbed_assert_internal(#expr, __FILE__, __LINE__); \
AnnaBridge 156:ff21514d8981 50 } \
AnnaBridge 156:ff21514d8981 51 } while (0)
AnnaBridge 156:ff21514d8981 52 #endif
AnnaBridge 156:ff21514d8981 53
AnnaBridge 156:ff21514d8981 54
AnnaBridge 156:ff21514d8981 55 /** MBED_STATIC_ASSERT
AnnaBridge 156:ff21514d8981 56 * Declare compile-time assertions, results in compile-time error if condition is false
AnnaBridge 156:ff21514d8981 57 *
AnnaBridge 156:ff21514d8981 58 * The assertion acts as a declaration that can be placed at file scope, in a
AnnaBridge 156:ff21514d8981 59 * code block (except after a label), or as a member of a C++ class/struct/union.
AnnaBridge 156:ff21514d8981 60 *
AnnaBridge 156:ff21514d8981 61 * @note
AnnaBridge 156:ff21514d8981 62 * Use of MBED_STATIC_ASSERT as a member of a struct/union is limited:
AnnaBridge 156:ff21514d8981 63 * - In C++, MBED_STATIC_ASSERT is valid in class/struct/union scope.
AnnaBridge 156:ff21514d8981 64 * - In C, MBED_STATIC_ASSERT is not valid in struct/union scope, and
AnnaBridge 156:ff21514d8981 65 * MBED_STRUCT_STATIC_ASSERT is provided as an alternative that is valid
AnnaBridge 156:ff21514d8981 66 * in C and C++ class/struct/union scope.
AnnaBridge 156:ff21514d8981 67 *
AnnaBridge 156:ff21514d8981 68 * @code
AnnaBridge 156:ff21514d8981 69 * MBED_STATIC_ASSERT(MBED_LIBRARY_VERSION >= 120,
AnnaBridge 156:ff21514d8981 70 * "The mbed library must be at least version 120");
AnnaBridge 156:ff21514d8981 71 *
AnnaBridge 156:ff21514d8981 72 * int main() {
AnnaBridge 156:ff21514d8981 73 * MBED_STATIC_ASSERT(sizeof(int) >= sizeof(char),
AnnaBridge 156:ff21514d8981 74 * "An int must be larger than a char");
AnnaBridge 156:ff21514d8981 75 * }
AnnaBridge 156:ff21514d8981 76 * @endcode
AnnaBridge 156:ff21514d8981 77 */
AnnaBridge 156:ff21514d8981 78 #if defined(__cplusplus) && (__cplusplus >= 201103L || __cpp_static_assert >= 200410L)
AnnaBridge 156:ff21514d8981 79 #define MBED_STATIC_ASSERT(expr, msg) static_assert(expr, msg)
AnnaBridge 156:ff21514d8981 80 #elif !defined(__cplusplus) && __STDC_VERSION__ >= 201112L
AnnaBridge 156:ff21514d8981 81 #define MBED_STATIC_ASSERT(expr, msg) _Static_assert(expr, msg)
AnnaBridge 156:ff21514d8981 82 #elif defined(__cplusplus) && defined(__GNUC__) && defined(__GXX_EXPERIMENTAL_CXX0X__) \
AnnaBridge 156:ff21514d8981 83 && (__GNUC__*100 + __GNUC_MINOR__) > 403L
AnnaBridge 156:ff21514d8981 84 #define MBED_STATIC_ASSERT(expr, msg) __extension__ static_assert(expr, msg)
AnnaBridge 156:ff21514d8981 85 #elif !defined(__cplusplus) && defined(__GNUC__) && !defined(__CC_ARM) \
AnnaBridge 156:ff21514d8981 86 && (__GNUC__*100 + __GNUC_MINOR__) > 406L
AnnaBridge 156:ff21514d8981 87 #define MBED_STATIC_ASSERT(expr, msg) __extension__ _Static_assert(expr, msg)
AnnaBridge 156:ff21514d8981 88 #elif defined(__ICCARM__)
AnnaBridge 156:ff21514d8981 89 #define MBED_STATIC_ASSERT(expr, msg) static_assert(expr, msg)
AnnaBridge 156:ff21514d8981 90 #else
AnnaBridge 156:ff21514d8981 91 #define MBED_STATIC_ASSERT(expr, msg) \
AnnaBridge 156:ff21514d8981 92 enum {MBED_CONCAT(MBED_ASSERTION_AT_, __LINE__) = sizeof(char[(expr) ? 1 : -1])}
AnnaBridge 156:ff21514d8981 93 #endif
AnnaBridge 156:ff21514d8981 94
AnnaBridge 156:ff21514d8981 95 /** MBED_STRUCT_STATIC_ASSERT
AnnaBridge 156:ff21514d8981 96 * Declare compile-time assertions, results in compile-time error if condition is false
AnnaBridge 156:ff21514d8981 97 *
AnnaBridge 156:ff21514d8981 98 * Unlike MBED_STATIC_ASSERT, MBED_STRUCT_STATIC_ASSERT can and must be used
AnnaBridge 156:ff21514d8981 99 * as a member of a C/C++ class/struct/union.
AnnaBridge 156:ff21514d8981 100 *
AnnaBridge 156:ff21514d8981 101 * @code
AnnaBridge 156:ff21514d8981 102 * struct thing {
AnnaBridge 156:ff21514d8981 103 * MBED_STATIC_ASSERT(2 + 2 == 4,
AnnaBridge 156:ff21514d8981 104 * "Hopefully the universe is mathematically consistent");
AnnaBridge 156:ff21514d8981 105 * };
AnnaBridge 156:ff21514d8981 106 * @endcode
AnnaBridge 156:ff21514d8981 107 */
AnnaBridge 156:ff21514d8981 108 #define MBED_STRUCT_STATIC_ASSERT(expr, msg) int : (expr) ? 0 : -1
AnnaBridge 156:ff21514d8981 109
AnnaBridge 156:ff21514d8981 110
AnnaBridge 156:ff21514d8981 111 #endif
AnnaBridge 156:ff21514d8981 112
AnnaBridge 156:ff21514d8981 113 /** @}*/