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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. int main (int argc, char *argv[])
  6. {
  7. 	char *ptr;
  8. 	if (argc < 3)
  9. 	{
  10. 		printf ("Usage: %s <env var> <target prog>\n", argv[0]);
  11. 		exit(0);
  12. 	}
  13. 	ptr = getenv (argv[1]);
  14. 	ptr += (strlen(argv[0]) - strlen(argv[2])) * 2;
  15. 	printf ("%s will be at %p\n", argv[1], ptr);
  16. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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Usage: ./prog <env var> <target prog>
https://ideone.com/7KoBIN
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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