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  1. /*    main program illustrating the UNIX fork() system call. 
  2. Compile using cc -o main main.c
  3. */
  4. #include <stdio.h>
  5. main() {
  6. 	if (fork() != 0) {
  7. 		if (fork() != 0) {
  8. 			printf("hello1 %i\n", getpid());
  9. 		}
  10. 		else {
  11. 			fork();
  12. 		}
  13. 		printf("hello2 %i\n", getpid());
  14. 	}
  15. 	else {
  16. 		if (fork != 0) {
  17. 			printf("hello3 %i\n", getpid());
  18. 		}
  19. 		else {
  20. 			fork();
  21. 		}
  22. 		printf("hello4 %i\n", getpid());
  23. 	}
  24. 	printf("hello5 %i\n", getpid());
  25. }
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
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Standard input is empty
stdout
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hello1 748909
hello2 748909
hello5 748909
hello2 748913
hello5 748913
hello3 748912
hello4 748912
hello5 748912
https://ideone.com/aUrUvY
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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