int main(void)
{
static const except_id_t match[] = { { 1, 1 }, { 1, 2 } };
except_t *ex;
/*
* Nested exception ``try blocks''
*/
/* outer */
except_try_push(match, 2, &ex);
if (!ex) {
/* inner */
except_try_push(match, 2, &ex);
if (!ex) {
top_level();
} else {
/* inner catch */
printf("caught exception (inner): \"%s\", s=%ld, c=%ld\n",
except_message(ex), except_group(ex), except_code(ex));
except_rethrow(ex);
}
except_try_pop();
} else {
/* outer catch */
printf("caught exception (outer): \"%s\", s=%ld, c=%ld\n",
except_message(ex), except_group(ex), except_code(ex));
}
except_try_pop();
except_throw(99, 99, "exception in main");
return 0;
}
void *except_alloc(size_t size)
{
void *ptr = get_alloc()(size);
if (ptr == 0)
except_throw(XCEPT_BAD_ALLOC, 0, "out of memory");
return ptr;
}
static void bottom_level(void)
{
char buf[256];
printf("throw exception? "); fflush(stdout);
fgets(buf, sizeof buf, stdin);
if (buf[0] >= 0 && toupper(buf[0]) == 'Y')
except_throw(1, 1, "nasty exception");
}