3 * Copyright 2015-2016 Nest Labs Inc. All Rights Reserved.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
21 * This file provides an ISO/IEC 9899:1999-, C89-, and
22 * C99-compatible Standard C Library header and assertion
23 * interface definition, implemented atop Nest Labs assertion
24 * checking and runtime exception interfaces such that consistent
25 * platform and system capabilities, behavior, and output may
26 * be implemented and enforced across the two interfaces.
28 * Systems wishing to use this in lieu of their Standard C
29 * Library header of the same name should ensure that their
30 * toolchain is configured to either ignore or deprioritize
31 * standard search paths while placing the directory this header
32 * is contained in among the preferred header search paths.
36 #ifndef NL_ASSERT_STDC_ASSERT_H
37 #define NL_ASSERT_STDC_ASSERT_H
42 * @def assert(aExpression)
45 * This checks for the specified condition, which is expected to
46 * commonly be true and takes action, based on configuration, and
47 * aborts the current program execution if the condition is false.
49 * This provides a workalike macro for the ISO/IEC 9899:1999, C89,
50 * and C99 Standard C Library
51 * [assert()](http://pubs.opengroup.org/onlinepubs/009695399/functions/assert.html)
52 * macro interface and bases it upon the equivalent #nlABORT macro,
53 * which has the same semantics, and the same behavior when active. The
54 * difference between the #nlABORT macro and this assert() macro is that
55 * #nlABORT is always active, while this one is inactive when NDEBUG is
56 * defined and active when NDEBUG is undefined. Note that when this macro
57 * is inactive, the test is __completely__ elided; side effects, if any,
58 * in the tested expression will not be produced.
60 * System integrators may want to use this as opposed to their native
61 * Standard C Library assert() to ensure consistent capabilities,
62 * behavior, and output across their software modules when runtime
63 * assertions occur where the Nest Labs assertion checking and
64 * runtime exception handling is also used.
66 * @param[in] aExpression A Boolean expression to be evaluated.
73 #define assert(aExpression) (static_cast<void> (0))
75 #define assert(aExpression) ((void) (0))
78 #define assert(aExpression) nlABORT(aExpression)
81 #endif /* NL_ASSERT_STDC_ASSERT_H */