setjmp: saves the contents of the system stack in envbuf for later use by longjmp() : setjmp « setjmp.h « C / ANSI-C

1. C / ANSI-C
2. setjmp.h
3. setjmp

setjmp: saves the contents of the system stack in envbuf for later use by longjmp()

    

//Header file: #include <setjmp.h>  
//Declaration: int setjmp(jmp_buf envbuf); 
//Return:      returns zero upon invocation. 

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

  jmp_buf ebuf;
  void f2(void);

  int main(void)
  {
    int i;

    printf("1 ");
    i = setjmp(ebuf);
    if(i == 0) {
      f2();
      printf("This will not be printed.");
    }
    printf("%d", i);

    return 0;
  }

  void f2(void)
  {
    printf("2 ");
    longjmp(ebuf, 3);
  }


           
       

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