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58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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/**
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* @brief This file provides two macros, mp_assert and mp_require, used to check
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* for conditions that should never occur.
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*
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* The mp_assert macro is a convenience wrapper around the standard assert,
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* which also sinks unused variables to prevent compiler warnings. It should be
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* used for debugging purposes only to check for conditions that should never
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* occur. This macro can be disabled in release builds by defining NDEBUG and
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* should not be used for error handling.
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*
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* The mp_require macro is similar to mp_assert but more strict. It enforces
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* critical assertions even in release builds. If the condition is not met, this
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* macro will abort the program, making it suitable for error handling in cases
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* where recovery is impossible. Note that this macro does not log any messages
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* to keep as small footprint as possible in NDEBUG builds.
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*/
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#ifndef NDEBUG
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#include <assert.h>
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#define mp_assert assert
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#define mp_require assert
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#else
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#include <stdio.h>
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#include <stdlib.h>
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#define mp_require(expr) \
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do { \
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if (!(expr)) \
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abort(); \
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} while (0)
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#define mp_assert(expr) do { (void)sizeof(expr); } while (0)
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#endif
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