/* assert.c: ASSERTION IMPLEMENTATION
*
* $Id: //info.ravenbrook.com/project/mps/branch/2002-05-22/open-source-prep/code/assert.c#4 $
* Copyright (c) 2001 Ravenbrook Limited. See end of file for license.
*
* This source provides the AssertFail function which is
* invoked by the assertion macros (see <code/assert.h>).
* It also provides for user-installed assertion failure handlers.
*/
#include "check.h"
#include "mpm.h"
SRCID(assert, "$Id: //info.ravenbrook.com/project/mps/branch/2002-05-22/open-source-prep/code/assert.c#4 $");
/* CheckLevel -- Control check level
*
* This controls the behaviour of Check methods unless MPS_HOT_RED
* is defined, when it is effectively stuck at "CheckNONE".
*/
unsigned CheckLevel = CheckSHALLOW;
static void AssertLib(const char *cond, const char *id,
const char *file, unsigned line)
{
WriteF(mps_lib_stderr,
"\n"
"MPS ASSERTION FAILURE\n"
"\n"
"Id: $S\n", id,
"File: $S\n", file,
"Line: $U\n", (WriteFU)line,
"Condition: $S\n", cond,
"\n",
NULL);
mps_lib_abort();
}
static AssertHandler handler = &AssertLib;
AssertHandler AssertDefault(void)
{
return &AssertLib;
}
AssertHandler AssertInstall(AssertHandler new)
{
AssertHandler prev = handler;
handler = new;
return prev;
}
/* AssertFail -- fail an assertion
*
* This function is called when an ASSERT macro fails a test. It
* calls the installed assertion handler, if it is not NULL. If
* handler returns the progam continues.
*/
void AssertFail1(const char *s)
{
if (handler != NULL)
(*handler)(s, "", "", 0);
}
/* C. COPYRIGHT AND LICENSE
*
* Copyright (C) 2001-2002 Ravenbrook Limited <http://www.ravenbrook.com/>.
* All rights reserved. This is an open source license. Contact
* Ravenbrook for commercial licensing options.
*
* 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. Redistributions in any form must be accompanied by information on how
* to obtain complete source code for this software and any accompanying
* software that uses this software. The source code must either be
* included in the distribution or be available for no more than the cost
* of distribution plus a nominal fee, and must be freely redistributable
* under reasonable conditions. For an executable file, complete source
* code means the source code for all modules it contains. It does not
* include source code for modules or files that typically accompany the
* major components of the operating system on which the executable file
* runs.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS AND 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.
*/