[mirror_zfs.git] / lib / libspl / include / assert.h

/*
 * 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);

/* 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); \
		__assert(__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)
#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
#endif  /* NDEBUG */

#endif  /* _LIBSPL_ASSERT_H */
Commit	Line	Data
a26baf28 BB	1	/*
	2	* CDDL HEADER START
	3	*
	4	* The contents of this file are subject to the terms of the
	5	* Common Development and Distribution License, Version 1.0 only
	6	* (the "License"). You may not use this file except in compliance
	7	* with the License.
	8	*
	9	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	10	* or http://www.opensolaris.org/os/licensing.
	11	* See the License for the specific language governing permissions
	12	* and limitations under the License.
	13	*
	14	* When distributing Covered Code, include this CDDL HEADER in each
	15	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	16	* If applicable, add the following below this CDDL HEADER, with the
	17	* fields enclosed by brackets "[]" replaced with your own identifying
	18	* information: Portions Copyright [yyyy] [name of copyright owner]
	19	*
	20	* CDDL HEADER END
	21	*/
	22	/*
	23	* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
	24	* Use is subject to license terms.
	25	*/
	26
	27	#include_next <assert.h>
	28
	29	#ifndef _LIBSPL_ASSERT_H
d1d7e268	30	#define _LIBSPL_ASSERT_H
a26baf28 BB	31
	32	#include <stdio.h>
	33	#include <stdlib.h>
	34
	35	#ifndef __assert_c99
	36	static inline void
	37	__assert_c99(const char expr, const char file, int line, const char *func)
	38	{
	39	fprintf(stderr, "%s:%i: %s: Assertion `%s` failed.\n",
	40	file, line, func, expr);
	41	abort();
	42	}
	43	#endif /* __assert_c99 */
	44
	45	#ifndef verify
	46	#if defined(__STDC__)
	47	#if __STDC_VERSION__ - 0 >= 199901L
	48	#define verify(EX) (void)((EX) \|\| \
	49	(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
	50	#else
	51	#define verify(EX) (void)((EX) \|\| (__assert(#EX, __FILE__, __LINE__), 0))
	52	#endif /* __STDC_VERSION__ - 0 >= 199901L */
	53	#else
	54	#define verify(EX) (void)((EX) \|\| (_assert("EX", __FILE__, __LINE__), 0))
	55	#endif /* __STDC__ */
	56	#endif /* verify */
	57
	58	#undef VERIFY
	59	#undef ASSERT
	60
	61	#define VERIFY verify
	62	#define ASSERT assert
	63
	64	extern void __assert(const char , const char , int);
	65
	66	/* BEGIN CSTYLED */
	67	#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
	68	const TYPE __left = (TYPE)(LEFT); \
	69	const TYPE __right = (TYPE)(RIGHT); \
	70	if (!(__left OP __right)) { \
	71	char *__buf = alloca(256); \
	72	(void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \
	73	#LEFT, #OP, #RIGHT, \
	74	(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
	75	__assert(__buf, __FILE__, __LINE__); \
	76	} \
	77	} while (0)
	78	/* END CSTYLED */
	79
	80	#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t)
	81	#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
	82	#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t)
c99c9001	83	#define VERIFY0(x) VERIFY3_IMPL(x, ==, 0, uint64_t)
a26baf28 BB	84
	85	#ifdef NDEBUG
	86	#define ASSERT3S(x, y, z) ((void)0)
	87	#define ASSERT3U(x, y, z) ((void)0)
	88	#define ASSERT3P(x, y, z) ((void)0)
c99c9001	89	#define ASSERT0(x) ((void)0)
a26baf28 BB	90	#define ASSERTV(x)
	91	#else
	92	#define ASSERT3S(x, y, z) VERIFY3S(x, y, z)
	93	#define ASSERT3U(x, y, z) VERIFY3U(x, y, z)
	94	#define ASSERT3P(x, y, z) VERIFY3P(x, y, z)
c99c9001	95	#define ASSERT0(x) VERIFY0(x)
a26baf28 BB	96	#define ASSERTV(x) x
	97	#endif /* NDEBUG */
	98
	99	#endif /* _LIBSPL_ASSERT_H */