static int test4(int argc, const char* argv[])
{
/* Prepare a pointer to an invalid address. Don't use null, because
dereferencing null is undefined behaviour and compilers are free to
do whatever they want. ex: Clang will warn at compile time, or even
optimize away the write. We hope to 'outsmart' them by using
'volatile' and a slightly larger address, based on a runtime value. */
volatile int* invalidAddress = 0;
invalidAddress += argc?1:2;
#if defined(_WIN32)
/* Avoid error diagnostic popups since we are crashing on purpose. */
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
#elif defined(__BEOS__) || defined(__HAIKU__)
/* Avoid error diagnostic popups since we are crashing on purpose. */
disable_debugger(1);
#endif
(void)argc; (void)argv;
fprintf(stdout, "Output before crash on stdout from crash test.\n");
fprintf(stderr, "Output before crash on stderr from crash test.\n");
fflush(stdout);
fflush(stderr);
/* Provoke deliberate crash by writing to the invalid address. */
*invalidAddress = 0;
fprintf(stdout, "Output after crash on stdout from crash test.\n");
fprintf(stderr, "Output after crash on stderr from crash test.\n");
return 0;
}
int test4(int argc, const char* argv[])
{
#if defined(_WIN32)
/* Avoid error diagnostic popups since we are crashing on purpose. */
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
#elif defined(__BEOS__) || defined(__HAIKU__)
/* Avoid error diagnostic popups since we are crashing on purpose. */
disable_debugger(1);
#endif
(void)argc; (void)argv;
fprintf(stdout, "Output before crash on stdout from crash test.\n");
fprintf(stderr, "Output before crash on stderr from crash test.\n");
fflush(stdout);
fflush(stderr);
#if defined(__APPLE__) && defined(__x86_64__) && defined(__OPTIMIZE__) \
&& defined(__clang__)
*(int*)1 = 0; /* Clang's optimizer produces bad code for 0-ptr. */
#else
*(int*)0 = 0;
#endif
fprintf(stdout, "Output after crash on stdout from crash test.\n");
fprintf(stderr, "Output after crash on stderr from crash test.\n");
return 0;
}
