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106 líneas
2.1 KiB
106 líneas
2.1 KiB
extern int printf(const char *format, ...);
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static void kb_wait_1(void)
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{
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unsigned long timeout = 2;
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do {
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if (1) printf("timeout=%ld\n", timeout);
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else
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{
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while (1)
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printf("error\n");
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}
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timeout--;
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} while (timeout);
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}
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static void kb_wait_2(void)
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{
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unsigned long timeout = 2;
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do {
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if (1) printf("timeout=%ld\n", timeout);
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else
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{
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for (;;)
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printf("error\n");
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}
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timeout--;
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} while (timeout);
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}
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static void kb_wait_2_1(void)
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{
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unsigned long timeout = 2;
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do {
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if (1) printf("timeout=%ld\n", timeout);
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else
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{
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do {
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printf("error\n");
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} while (1);
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}
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timeout--;
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} while (timeout);
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}
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static void kb_wait_2_2(void)
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{
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unsigned long timeout = 2;
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do {
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if (1) printf("timeout=%ld\n", timeout);
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else
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{
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label:
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printf("error\n");
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goto label;
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}
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timeout--;
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} while (timeout);
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}
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static void kb_wait_3(void)
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{
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unsigned long timeout = 2;
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do {
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if (1) printf("timeout=%ld\n", timeout);
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else
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{
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int i = 1;
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goto label;
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i = i + 2;
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label:
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i = i + 3;
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}
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timeout--;
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} while (timeout);
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}
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static void kb_wait_4(void)
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{
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unsigned long timeout = 2;
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do {
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if (1) printf("timeout=%ld\n", timeout);
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else
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{
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switch(timeout) {
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case 2:
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printf("timeout is 2");
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break;
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case 1:
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printf("timeout is 1");
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break;
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default:
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printf("timeout is 0?");
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break;
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};
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/* return; */
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}
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timeout--;
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} while (timeout);
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}
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int main()
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{
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printf("begin\n");
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kb_wait_1();
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kb_wait_2();
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kb_wait_2_1();
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kb_wait_2_2();
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kb_wait_3();
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kb_wait_4();
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printf("end\n");
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return 0;
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}
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