01_allocation.c

#include <stdio.h>
#include <string.h>

struct Person {
  char *name;
};

int main(int argc, char *argv[])
{
  int i = 0;
  char *name = "Patrick";
  char *other_name = strdup(name);
  char initial = 'R';
  
  struct Person patrick;
  patrick.name = "Patrick";
  
  printf("Integer is at location: %p\n", &i);
  printf("String is at location: %p\n", name);
  printf("Duplicated string is at location: %p\n", other_name);
  printf("Character is at location: %p\n", &initial);
  printf("name is at location: %p\n", patrick.name);
  printf("&name is at location: %p\n", &patrick.name);
  
  return 0;
}

02_output.txt

Integer is at location: 0x7fff5fbff028
String is at location: 0x100000e78
Duplicated string is at location: 0x100100080
Character is at location: 0x7fff5fbff02f
name is at location: 0x100000e78
&name is at location: 0x7fff5fbff010

03_valgrind_output.txt

==28070== Memcheck, a memory error detector
==28070== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==28070== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info
==28070== Command: ./strings
==28070== 
Integer is at location: 0x7fff5fbff608
String is at location: 0x100000e78
Duplicated string is at location: 0x10027e0e0
Character is at location: 0x7fff5fbff60f
name is at location: 0x100000e78
&name is at location: 0x7fff5fbff5f0
==28070== 
==28070== HEAP SUMMARY:
==28070==     in use at exit: 4,192 bytes in 3 blocks
==28070==   total heap usage: 3 allocs, 0 frees, 4,192 bytes allocated
==28070== 
==28070== LEAK SUMMARY:
==28070==    definitely lost: 8 bytes in 1 blocks
==28070==    indirectly lost: 0 bytes in 0 blocks
==28070==      possibly lost: 0 bytes in 0 blocks
==28070==    still reachable: 4,184 bytes in 2 blocks
==28070==         suppressed: 0 bytes in 0 blocks
==28070== Rerun with --leak-check=full to see details of leaked memory
==28070== 
==28070== For counts of detected and suppressed errors, rerun with: -v
==28070== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)