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C

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
#pragma once
#include <stddef.h>
#include "typecheck.h"
#define TLSL_CONTAINER_OF(PTR, TYPE, MEMBER) ({ \
TLSL_TYPEOFS_EQ(((TYPE *)NULL)->MEMBER, *(PTR)); \
(TYPE *)((char *)(PTR) - offsetof(TYPE, MEMBER)); \
})