std::filesystem::begin(directory_iterator), std::filesystem::end(directory_iterator)

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Feature test macros (C++20)
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Concepts library (C++20)
Diagnostics library
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Metaprogramming library (C++11)
General utilities library
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Ranges library (C++20)
Algorithms library
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Input/output library
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
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