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C++11 allows you to write natural "value-oriented" code without paying a copying cost. This is thanks to RVO (return value optimization) and move semantics.

• sqeaky 9y ago
  There is often a great deal of copy elision when passing things by value when the compiler can prove it the copying itself won't cause side effects.
• barrkel 9y ago
  You might have noticed that we were talking about C and assembly.