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fa720217b9
Added for upstream compatibility, they are of the form: * IMPLY(a, b) - if (a) then (b) * EQUIV(a, b) - if (a) then (b) *AND* if (b) then (a) Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#include_next <assert.h>
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#ifndef _LIBSPL_ASSERT_H
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#define _LIBSPL_ASSERT_H
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#include <stdio.h>
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#include <stdlib.h>
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#ifndef __assert_c99
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static inline void
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__assert_c99(const char *expr, const char *file, int line, const char *func)
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{
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fprintf(stderr, "%s:%i: %s: Assertion `%s` failed.\n",
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file, line, func, expr);
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abort();
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}
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#endif /* __assert_c99 */
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#ifndef verify
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#if defined(__STDC__)
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#if __STDC_VERSION__ - 0 >= 199901L
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#define verify(EX) (void)((EX) || \
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(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
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#else
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#define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
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#endif /* __STDC_VERSION__ - 0 >= 199901L */
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#else
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#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0))
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#endif /* __STDC__ */
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#endif /* verify */
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#undef VERIFY
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#undef ASSERT
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#define VERIFY verify
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#define ASSERT assert
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extern void __assert(const char *, const char *, int);
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static inline int
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assfail(const char *buf, const char *file, int line)
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{
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__assert(buf, file, line);
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return (0);
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}
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/* BEGIN CSTYLED */
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#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
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const TYPE __left = (TYPE)(LEFT); \
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const TYPE __right = (TYPE)(RIGHT); \
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if (!(__left OP __right)) { \
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char *__buf = alloca(256); \
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(void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \
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#LEFT, #OP, #RIGHT, \
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(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
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assfail(__buf, __FILE__, __LINE__); \
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} \
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} while (0)
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/* END CSTYLED */
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#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t)
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#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
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#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t)
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#define VERIFY0(x) VERIFY3_IMPL(x, ==, 0, uint64_t)
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#ifdef NDEBUG
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#define ASSERT3S(x, y, z) ((void)0)
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#define ASSERT3U(x, y, z) ((void)0)
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#define ASSERT3P(x, y, z) ((void)0)
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#define ASSERT0(x) ((void)0)
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#define ASSERTV(x)
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#define IMPLY(A, B) ((void)0)
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#define EQUIV(A, B) ((void)0)
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#else
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#define ASSERT3S(x, y, z) VERIFY3S(x, y, z)
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#define ASSERT3U(x, y, z) VERIFY3U(x, y, z)
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#define ASSERT3P(x, y, z) VERIFY3P(x, y, z)
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#define ASSERT0(x) VERIFY0(x)
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#define ASSERTV(x) x
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#define IMPLY(A, B) \
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((void)(((!(A)) || (B)) || \
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assfail("(" #A ") implies (" #B ")", __FILE__, __LINE__)))
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#define EQUIV(A, B) \
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((void)((!!(A) == !!(B)) || \
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assfail("(" #A ") is equivalent to (" #B ")", __FILE__, __LINE__)))
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#endif /* NDEBUG */
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#endif /* _LIBSPL_ASSERT_H */
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