mirror of
https://github.com/cryb-to/cryb-to.git
synced 2024-12-25 05:51:07 +00:00
636bd7a259
This adds a `CRYB_UNREACHABLE` macro which will cause a segfault if reached, and modifies `CRYB_NO_DEFAULT_CASE` to have essentially the same semantics. It also removes the conditionals since the coverage macros are always defined.
68 lines
2.6 KiB
C
68 lines
2.6 KiB
C
/*-
|
|
* Copyright (c) 2014-2016 Dag-Erling Smørgrav
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef CRYB_COVERAGE_H_INCLUDED
|
|
#define CRYB_COVERAGE_H_INCLUDED
|
|
|
|
#ifndef CRYB_TO
|
|
#include <cryb/to.h>
|
|
#endif
|
|
|
|
#if _BullseyeCoverage
|
|
# define CRYB_COVERAGE 1
|
|
# define CRYB_DISABLE_COVERAGE _Pragma("BullseyeCoverage save off")
|
|
# define CRYB_RESTORE_COVERAGE _Pragma("BullseyeCoverage restore")
|
|
#else
|
|
# define CRYB_COVERAGE 0
|
|
# define CRYB_DISABLE_COVERAGE
|
|
# define CRYB_RESTORE_COVERAGE
|
|
#endif
|
|
|
|
/*
|
|
* Some switch constructs may leave you trapped between a static analyzer
|
|
* that complains about the lack of a default case and a dynamic analyzer
|
|
* that complains about dead code. Use this macro at the end of a switch
|
|
* that does not need a default case.
|
|
*/
|
|
#define CRYB_NO_DEFAULT_CASE \
|
|
CRYB_DISABLE_COVERAGE \
|
|
break; default: do { *(volatile int *)0 = 0; } while (0) \
|
|
CRYB_RESTORE_COVERAGE
|
|
|
|
/*
|
|
* Use wherever a static analyzer is unable to correctly determine that a
|
|
* loop will never terminate, an if-else chain will always cover all
|
|
* possible cases, etc.
|
|
*/
|
|
#define CRYB_UNREACHABLE \
|
|
CRYB_DISABLE_COVERAGE \
|
|
do { *(volatile int *)0 = 0; } while (0) \
|
|
CRYB_RESTORE_COVERAGE
|
|
|
|
#endif
|