Userland/Libraries/LibC/assert.h


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/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#ifndef _ASSERT_H
#    define _ASSERT_H

#    define __stringify_helper(x) #    x
#    define __stringify(x) __stringify_helper(x)

#    ifndef __cplusplus
#        define static_assert _Static_assert
#    endif
#endif

#include <sys/cdefs.h>

#undef assert

__BEGIN_DECLS

#ifndef NDEBUG
__attribute__((noreturn)) void __assertion_failed(char const* msg);
#    define assert(expr)                                                            \
        (__builtin_expect(!(expr), 0)                                               \
                ? __assertion_failed(#expr "\n" __FILE__ ":" __stringify(__LINE__)) \
                : (void)0)

#else
#    define assert(expr) ((void)(0))
#endif

__END_DECLS