void    init_buff(char *buff)
{
  int   i;

  i = 0;
  while (i < BUFF)
    buff[i++] = 0;
}
==24048== Invalid write of size 1
==24048==    at 0x401AA8: init_buff (function_init.c:19)
==24048==    by 0x400D51: history (history.c:92)
==24048==    by 0x400E32: bonus (history.c:111)
==24048==    by 0x401D6C: main (main.c:24)
==24048==  Address 0x5845518 is 0 bytes after a block of size 8 alloc'd
==24048==    at 0x4C277AB: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==24048==    by 0x400BED: history (history.c:69)
==24048==    by 0x400E32: bonus (history.c:111)
==24048==    by 0x401D6C: main (main.c:24)
==24048==