[LLVMbugs] [Bug 20520] std::list<>::remove_if() visits elements multiple times

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Aug 4 10:32:40 PDT 2014


Marshall Clow (home) <mclow.lists at gmail.com> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Marshall Clow (home) <mclow.lists at gmail.com> ---
After the call to erase, we know that either (a) we're at the end of the list,
or (b) we're looking at an element that the predicate has returned "false" for.
So we can just increment the iterator, and move on.

             __i = erase(__i, __j);
+            if (__i != __e)
+                __i = _VSTD::next(__i);

I don't see that forward_list has this problem, because the code is somewhat

Committed revision 214736 to fix this (and add tests).

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