38 lines
1.9 KiB
C
38 lines
1.9 KiB
C
// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef __ESP_ASSERT_H__
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#define __ESP_ASSERT_H__
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#include "assert.h"
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/* Assert at compile time if possible, runtime otherwise */
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#ifndef __cplusplus
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/* __builtin_choose_expr() is only in C, makes this a lot cleaner */
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#define TRY_STATIC_ASSERT(CONDITION, MSG) do { \
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_Static_assert(__builtin_choose_expr(__builtin_constant_p(CONDITION), (CONDITION), 1), #MSG); \
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assert(#MSG && (CONDITION)); \
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} while(0)
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#else
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/* for C++, use __attribute__((error)) - works almost as well as _Static_assert */
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#define TRY_STATIC_ASSERT(CONDITION, MSG) do { \
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if (__builtin_constant_p(CONDITION) && !(CONDITION)) { \
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extern __attribute__((error(#MSG))) void failed_compile_time_assert(void); \
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failed_compile_time_assert(); \
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} \
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assert(#MSG && (CONDITION)); \
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} while(0)
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#endif /* __cplusplus */
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#endif /* __ESP_ASSERT_H__ */
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