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[c]代码库

#include <stdio.h> 
#include <process.h> 
#include <setjmp.h> 

void subroutine(void); 

jmp_buf jumper; 

int main(void) 
{ 
   int value; 

   value = setjmp(jumper); 
   if (value != 0) 
   { 
      printf("Longjmp with value %d\n", value); 
      exit(value); 
   } 
   printf("About to call subroutine ... \n"); 
   subroutine(); 
   return 0; 
} 

void subroutine(void) 
{ 
   longjmp(jumper,1); 
}