==43459== Memcheck, a memory error detector
==43459== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==43459== Using Valgrind-3.14.0.GIT and LibVEX; rerun with -h for copyright info
==43459== Command: ./Dlist
==43459==
==43459==
==43459== HEAP SUMMARY:
==43459== in use at exit: 18,024 bytes in 160 blocks
==43459== total heap usage: 181 allocs, 21 frees, 26,472 bytes allocated
==43459==
==43459== 72 bytes in 3 blocks are possibly lost in loss record 25 of 40
==43459== at 0x1000AAFF2: calloc (vg_replace_malloc.c:755)
==43459== by 0x1008447E2: map_images_nolock (in /usr/lib/libobjc.A.dylib)
==43459== by 0x1008577DA: objc_object::sidetable_retainCount() (in /usr/lib/libobjc.A.dylib)
==43459== by 0x100006C64: dyld::notifyBatchPartial(dyld_image_states, bool, char const* ()(dyld_image_states, unsigned int, dyld_image_info const), bool, bool) (in /usr/lib/dyld)
==43459== by 0x100006E39: dyld::registerObjCNotifiers(void ()(unsigned int, char const const*, mach_header const* const*), void ()(char const, mach_header const*), void ()(char const, mach_header const*)) (in /usr/lib/dyld)
==43459== by 0x10030F71D: _dyld_objc_notify_register (in /usr/lib/system/libdyld.dylib)
==43459== by 0x100844075: _objc_init (in /usr/lib/libobjc.A.dylib)
==43459== by 0x100299B34: _os_object_init (in /usr/lib/system/libdispatch.dylib)
==43459== by 0x100299B1B: libdispatch_init (in /usr/lib/system/libdispatch.dylib)
==43459== by 0x1001749C2: libSystem_initializer (in /usr/lib/libSystem.B.dylib)
==43459== by 0x100018A79: ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) (in /usr/lib/dyld)
==43459== by 0x100018CA9: ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) (in /usr/lib/dyld)
==43459==
==43459== LEAK SUMMARY:
==43459== definitely lost: 0 bytes in 0 blocks
==43459== indirectly lost: 0 bytes in 0 blocks
==43459== possibly lost: 72 bytes in 3 blocks
==43459== still reachable: 200 bytes in 6 blocks
==43459== suppressed: 17,752 bytes in 151 blocks
==43459== Reachable blocks (those to which a pointer was found) are not shown.
==43459== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==43459==
==43459== For counts of detected and suppressed errors, rerun with: -v
==43459== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 8 from 8)

The above is the error message. However, I am only compiling a single cpp with only main function which return 1:
"test.cpp":
int main()
{
return 1;
}

I cannot solve this out. Is this a problem with Valgrind on Macos?