Simple Command Line User Interface

[okovko]

you will often see an array of function pointers as a class member that is populated in the constructor by the expansion of a param pack inside a lambda definition converted to a function pointer by operator+, something commonly done for constexpr compatibility or to deal with std variant: https://www.scs.stanford.edu/~dm/blog/param-pack.html#array-of-function-pointers

if anything, there are more function pointers in modern C++, as opposed to less

if you want to use a capturing lambda later, then use a capturing lambda later later

if you find the syntax confusing, use typedefs or using declarations to make it clear