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By: a guest on Jun 22nd, 2012  |  syntax: None  |  size: 0.23 KB  |  hits: 16  |  expires: Never
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  1. Real world use-case for the `at()` indexing function in the C   std library?
  2. std::vector<std::vector<int> >::iterator i;
  3. for (i = v2.begin(); i != v2.end(); ++i)
  4. {
  5.     int x1 = (*i)[3]; // UGLY
  6.     int x2 = i->at(3); // Looks OK
  7. }
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