<ul><li>std::shared_mutex is a utility that allows multiple threads to read from a resource without locking it and prevents concurrent writing.</li><li>std::apply is used for argument unpacking in C++, allowing multiple function input arguments to be provided with only one variable.</li><li>std::clamp reduces boilerplate code by simplifying the process of getting an input value within a specified range.</li><li>std::minmax_element is used to get both the minimum and maximum elements from a container with a single function call.</li><li>std::for_each_n allows executing a function on a limited number of elements in a container.</li></ul>

5 least known STL utilities in C++

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