advanced code snippet search

We Recommend

C++ The Core Language C++ The Core Language
C++: The Core Language is for C programmers transitioning to C++. It's designed to get readers up to speed quickly by covering an essential subset of the language. The subset consists of features without which it's just not C++, and a handful of others that make it a reasonably useful language.

Posted By

Feb30th1712 on 01/13/08


Tagged

c demo setjmph setjmp longjmp


Versions (?)


setjmp

Published in: C++ 

Plain TextExpand 
  1. #include <setjmp.h>
  2. #include <stdio.h>
  3.  
  4. jmp_buf envBuf;												//environment buffer
  5.  
  6. int main(void)
  7. {
  8. 	int dividend, divisor;
  9.  
  10. 	if ( setjmp(envBuf) )
  11. 	{
  12. 		puts("Enter a number.");
  13. 		getchar();
  14. 	}
  15. 	printf("Dividend: ");
  16. 	if (scanf("%d", &dividend) != 1) longjmp(envBuf, 1);
  17.  
  18. 	switch ( setjmp(envBuf) ) 
  19. 	{
  20. 		case 0: break;
  21. 		case 1: puts("Enter a number."); getchar(); break;
  22. 		case 2: puts("Divided by zero."); break;
  23. 		default: puts("Unknown error."); break;
  24. 	}
  25. 	printf("Divisor: ");
  26. 	if (scanf("%d", &divisor) != 1) longjmp(envBuf, 1);
  27. 	if (divisor == 0) longjmp(envBuf, 2);
  28. 	printf("%d / %d = %d", dividend, divisor, dividend / divisor);
  29.  
  30. 	return 0;
  31. }

Report this snippet 

You need to login to post a comment.