fork(1) download 
  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <stddef.h>
  4.  
  5. typedef struct __attribute__((packed))
  6. {
  7.     char a;
  8.     short b;
  9.     int c;
  10. } my_struct;
  11.  
  12. char buff[50];
  13.  
  14. int main(void) {
  15. 	my_struct s;
  16. 	s.a = 1;
  17. 	s.b = 2;
  18. 	s.c = 3;
  19.  
  20. 	memcpy(buff, &s, sizeof(s));
  21.  
  22. 	short *p = (short *)&buff[offsetof(my_struct, b)];
  23. 	*p = 1337;
  24.  
  25. 	printf("%d\r\n", *p);
  26.  
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0s 5516KB
comments (?)
stdin 
Standard input is empty
stdout 
1337
https://ideone.com/78Kney
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!