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Removed suggestion to post on SO.

edited Jun 13, 2020 at 1:16

You should've asked this on stackoverflow instead of codereview. But theThe answer is "yes" it is UB. To fix it just rewrite the part as:

if(it->second==0) { it = _m.erase(it); } else { it++; }

You should've asked this on stackoverflow instead of codereview. But the answer is "yes" it is UB. To fix it just rewrite the part as:

if(it->second==0) { it = _m.erase(it); } else { it++; }

The answer is "yes" it is UB. To fix it just rewrite the part as:

if(it->second==0) { it = _m.erase(it); } else { it++; }

answered Jun 12, 2020 at 0:02

You should've asked this on stackoverflow instead of codereview. But the answer is "yes" it is UB. To fix it just rewrite the part as:

if(it->second==0) { it = _m.erase(it); } else { it++; }