==127197== Memcheck, a memory error detector
==127197== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==127197== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==127197== Command: ./correct
==127197== 
@@@==127197== 
==127197== HEAP SUMMARY:
==127197==     in use at exit: 0 bytes in 0 blocks
==127197==   total heap usage: 1 allocs, 1 frees, 4 bytes allocated
==127197== 
==127197== All heap blocks were freed -- no leaks are possible
==127197== 
==127197== For lists of detected and suppressed errors, rerun with: -s
==127197== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)