cProjects/SP Programs/jumpfrombook.c at master · Ravikc/cProjects · GitHub

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

 void f1(int, int, int, int);
 void f2(void);

 jmp_buf jmpbuffer;
static int globval;

int main(void) {
    int  autoval;
    register int regival;
    volatile int volaval;
    static int statval;

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

    if (setjmp(jmpbuffer) != 0)
     {
        printf("after longjmp:\n");
        printf("globval = %d, autoval = %d, regival = %d," " volaval = %d, statval = %d\n", globval, autoval, regival, volaval, statval);
        exit(0);
    }


    globval = 95; autoval = 96; regival = 97; volaval = 98;      statval = 99;
    f1(autoval, regival, volaval, statval);

     exit(0); }

 void f1(int i, int j, int k, int l)
{
    printf("in f1():\n");
    printf("globval = %d, autoval = %d, regival = %d," " volaval = %d, statval = %d\n", globval, i, j, k, l);
    f2();
}
 void f2(void)
{
     longjmp(jmpbuffer, 1);
}