linux c之＜setjmp.h＞使用总结

1、爆代码

  

   

    

     

    
    

     

      #include<setjmp.h>
     
    
   

    

     

    
    

     

      #include<unistd.h>
     
    
   

    

     

    
    

     

      #include<stdio.h>
     
    
   

    

     

    
    

     

      #include<stdlib.h>
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      void f1(int, int, int, int);
     
    
   

    

     

    
    

     

      void f2(void);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      static jmp_buf jmpbuffer;
     
    
   

    

     

    
    

     

      static int globval;
     
    
   

    

     

    
    

     

      int i = 4;
     
    
   

    

     

    
    

     

      int main(void)
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

       int autoval;
     
    
   

    

     

    
    

     

       register int   regival;
     
    
   

    

     

    
    

     

       volatile int   volaval;
     
    
   

    

     

    
    

     

       static int statval;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

       globval = 1; autoval = 2; regival = 3; volaval = 4; statval = 5;
     
    
   

    

     

    
    

     

       i = 5;
     
    
   

    

     

    
    

     

       int result = setjmp(jmpbuffer);
     
    
   

    

     

    
    

     

       if (result != 0) {
     
    
   

    

     

    
    

     

       printf("result is %d\n", result);
     
    
   

    

     

    
    

     

       printf("after longjmp:\n");
     
    
   

    

     

    
    

     

       printf("i is %d\n", i);
     
    
   

    

     

    
    

     

       printf("globval = %d, autoval = %d, regival = %d,"
     
    
   

    

     

    
    

     

       " volaval = %d, statval = %d\n",
     
    
   

    

     

    
    

     

       globval, autoval, regival, volaval, statval);
     
    
   

    

     

    
    

     

       exit(0);
     
    
   

    

     

    
    

     

       }
     
    
   

    

     

    
    

     

       else 
     
    
   

    

     

    
    

     

       {
     
    
   

    

     

    
    

     

       puts("result == 0");
     
    
   

    

     

    
    

     

       }
     
    
  
 

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原文链接：chenyu.blog.csdn.net/article/details/58688550