[Bug libstdc++/55911] Segfault in unordered_map with max_load_factor > 1

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55911

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2013-01-09 12:15:39 UTC ---
This is invalid if size() > bucket_count(), which is very likely:

  for (size_t i = 0; i < umap.size(); i++)
    {
      const size_t bs = umap.bucket_size (i);

Shouldn't the loop condition be i < umap.bucket_count() instead?