freeCodeCamp/guide/english/cplusplus/range-for-loop/index.md

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Range For Loop

Range-based for loop

The ranged-based for loop allows easy looping over a range of elements (like elements in a container).

With traditional for loop:

std::vector<std::string> stringList {"one", "two", "three"};

for (size_t il; il < stringList.size(); il++
{
  std::cout << stringList.at(il) << std::endl;
}

With range-based for loop:

std::vector<std::string> stringList {"one", "two", "three"};

for (auto& singleString : stringList)
{
  std:cout << singleString << std::endl;
}