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annotate global_longjump.c @ 3:e6aa3b678e4a

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remove ret from global_longjump.c
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 12 Nov 2013 15:22:04 +0900
parents dee9711aeb06
children d75a89b10176
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 #include <stdio.h>
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2 #include <setjmp.h>
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3 #include <stdlib.h>
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4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 int retval;
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6 __code code1(int n,__code(*__return)(int,void *),void *__enviroment){
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7 printf("code1 : code1 entry\n");
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8 goto __return(n,__enviroment);
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9 }
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10
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11 __code return1 (int n,void* env){
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12 printf("return1 : __return entry\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 retval = n;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 longjmp(*(jmp_buf*)env,1);
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15 }
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16
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 int main1 (){
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18 __code (*__return)();
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19 void *__enviroment;
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20 printf("main1 : main1 entry\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 __enviroment = (void*)malloc(sizeof(jmp_buf));
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 if (setjmp(__enviroment)){
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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23 free(__enviroment);
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24 printf("main1 : main1 return\n");
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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25 return retval;
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26 }
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27 __return = return1;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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28 goto code1(30,__return,__enviroment);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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29 return 0;
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30 }
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31
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32 int main (){
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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33 int n;
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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34 n = main1();
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35 printf("main : return = %d\n",n);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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36 return 1;
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37 }