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/* assert.cc: Handle the assert macro for WIN32.
Copyright 1997, 1998, 2000, 2001, 2007, 2008, 2009 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include <wingdi.h>
#include <winuser.h>
#include <assert.h>
#include <stdlib.h>
/* This function is called when the assert macro fails. This will
override the function of the same name in newlib. */
extern "C" void
__assert (const char *file, int line, const char *failedexpr)
{
__assert_func (file, line, NULL, failedexpr);
}
extern "C" void
__assert_func (const char *file, int line, const char *func,
const char *failedexpr)
{
HANDLE h;
/* If we don't have a console in a Windows program, then bring up a
message box for the assertion failure. */
h = CreateFile ("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE, &sec_none_nih,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE)
{
char *buf;
buf = (char *) alloca (100 + strlen (failedexpr));
__small_sprintf (buf, "Failed assertion\n\t%s\nat line %d of file %s%s%s",
failedexpr, line, file,
func ? "\nin function " : "", func ? func : "");
MessageBox (NULL, buf, NULL, MB_OK | MB_ICONERROR | MB_TASKMODAL);
}
else
{
CloseHandle (h);
small_printf ("assertion \"%s\" failed: file \"%s\", line %d%s%s\n",
failedexpr, file, line,
func ? ", function: " : "", func ? func : "");
}
#ifdef DEBUGGING
try_to_debug ();
#endif
abort (); // FIXME: Someday this should work.
/* NOTREACHED */
}
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