Code Runs on Linux but not macOS High Sierra

ROOT
6

Try something like (note: some Valgrind functionality requires that the source code, that you want to analyse, is compiled with debug symbols):

valgrind --tool=memcheck --leak-check=full [--show-reachable=yes] [--track-origins=yes] [--num-callers=50] [--vgdb=full] --suppressions=`root-config --etcdir`/valgrind-root.supp `root-config --bindir`/root.exe -l -q 'iterate.C++g'
valgrind --tool=exp-sgcheck [--num-callers=50] [--vgdb=full] --suppressions=`root-config --etcdir`/valgrind-root.supp `root-config --bindir`/root.exe -l -q 'iterate.C++g'

and especially carefully study messages that appear in the beginning of the output.
(Note: the --show-reachable=yes option will give you too many warnings, I believe.)

BTW. The above Valgrind commands include some [something_optional] options (if you want to use any of these options, REMOVE the “square brackets”).

See also: