Standard Library Function Helpers

A comprehensive overview of function helpers in the standard library, including std::invocable, std::predicate and std::function.

Ryan McCombe
Updated
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Questions & Answers

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Calling an Empty std::function
What happens if I try to call a std::function object that is empty?
Performance Considerations with std::function
Are there any performance considerations I should be aware of when using std::function?
Storing Member Functions in std::function
Can I store a member function in a std::function object? If so, how do I invoke it?
Using the Predicate Concept with Member Types
Can I use the std::predicate concept with member functions that take member types as arguments?
Invoking Multiple std::function Objects
How can I store and invoke multiple std::function objects?
Using Lambdas with std::function
Can I use lambda expressions with std::function? Are there any limitations?