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7
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1 /*
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2 #include<stdio.h>
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3 #include<setjmp.h>
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4
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5 void jmpfunc(jmp_buf env);
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6 int setfunc();
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7 int flag=0;
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8
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9 int
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10 main(int argc, char **argv)
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11 {
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12 int rtn;
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13 flag=1;
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14 rtn = setfunc();
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15 printf("rtn = %d\n", rtn);
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16 return 0;
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17 }
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18
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19 */
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20 int
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21 setfunc()
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22 {
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23 int a;
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24 jmp_buf env;
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25
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26 if (a=setjmp(env)) {
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27 printf("it's continued! with value %d", a);
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28 return a;
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29 }
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30
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31 jmpfunc(env);
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32 return 0;
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33 }
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34
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35 void
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36 jmpfunc(jmp_buf env)
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37 {
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38 if (flag) {
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39 longjmp(env, 2);
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40 }
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41 return;
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42 }
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