/usr/include/libspl/assert.h is in libzfslinux-dev 0.6.5.6-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include_next <assert.h>
#ifndef _LIBSPL_ASSERT_H
#define _LIBSPL_ASSERT_H
#include <stdio.h>
#include <stdlib.h>
#ifndef __assert_c99
static inline void
__assert_c99(const char *expr, const char *file, int line, const char *func)
{
fprintf(stderr, "%s:%i: %s: Assertion `%s` failed.\n",
file, line, func, expr);
abort();
}
#endif /* __assert_c99 */
#ifndef verify
#if defined(__STDC__)
#if __STDC_VERSION__ - 0 >= 199901L
#define verify(EX) (void)((EX) || \
(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
#else
#define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
#endif /* __STDC_VERSION__ - 0 >= 199901L */
#else
#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0))
#endif /* __STDC__ */
#endif /* verify */
#undef VERIFY
#undef ASSERT
#define VERIFY verify
#define ASSERT assert
extern void __assert(const char *, const char *, int);
static inline int
assfail(const char *buf, const char *file, int line)
{
__assert(buf, file, line);
return (0);
}
/* BEGIN CSTYLED */
#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
const TYPE __left = (TYPE)(LEFT); \
const TYPE __right = (TYPE)(RIGHT); \
if (!(__left OP __right)) { \
char *__buf = alloca(256); \
(void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \
#LEFT, #OP, #RIGHT, \
(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
assfail(__buf, __FILE__, __LINE__); \
} \
} while (0)
/* END CSTYLED */
#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t)
#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t)
#define VERIFY0(x) VERIFY3_IMPL(x, ==, 0, uint64_t)
#ifdef NDEBUG
#define ASSERT3S(x, y, z) ((void)0)
#define ASSERT3U(x, y, z) ((void)0)
#define ASSERT3P(x, y, z) ((void)0)
#define ASSERT0(x) ((void)0)
#define ASSERTV(x)
#define IMPLY(A, B) ((void)0)
#define EQUIV(A, B) ((void)0)
#else
#define ASSERT3S(x, y, z) VERIFY3S(x, y, z)
#define ASSERT3U(x, y, z) VERIFY3U(x, y, z)
#define ASSERT3P(x, y, z) VERIFY3P(x, y, z)
#define ASSERT0(x) VERIFY0(x)
#define ASSERTV(x) x
#define IMPLY(A, B) \
((void)(((!(A)) || (B)) || \
assfail("(" #A ") implies (" #B ")", __FILE__, __LINE__)))
#define EQUIV(A, B) \
((void)((!!(A) == !!(B)) || \
assfail("(" #A ") is equivalent to (" #B ")", __FILE__, __LINE__)))
#endif /* NDEBUG */
#endif /* _LIBSPL_ASSERT_H */
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