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extern int printf(const char *format
, ...
);
static void kb_wait_1(void)
{
unsigned long timeout = 2;
do {
(1 ?
printf("timeout=%ld\n", timeout
) :
({
while (1)
})
);
timeout--;
} while (timeout);
}
static void kb_wait_2(void)
{
unsigned long timeout = 2;
do {
(1 ?
printf("timeout=%ld\n", timeout
) :
({
for (;;)
})
);
timeout--;
} while (timeout);
}
static void kb_wait_3(void)
{
unsigned long timeout = 2;
do {
(1 ?
printf("timeout=%ld\n", timeout
) :
({
int i = 1;
goto label;
i = i + 2;
label:
i = i + 3;
})
);
timeout--;
} while (timeout);
}
static void kb_wait_4(void)
{
unsigned long timeout = 2;
do {
(1 ?
printf("timeout=%ld\n", timeout
) :
({
switch(timeout) {
case 2:
break;
case 1:
break;
default:
break;
};
// return;
})
);
timeout--;
} while (timeout);
}
int main()
{
kb_wait_1();
kb_wait_2();
kb_wait_3();
kb_wait_4();
return 0;
}