Laney questions

Laney answers

• How can I "collapse" nested `if let` statements which all run the same code in their `else` clauses?
• How do I return a Result containing every error from an iterator of Results, not just the first one?
• Rust and serde deserializing using generics
• binary_search to find a class object by the return variable of its member function [c++]
• Simultaneous mutable access to arbitrary indices of a large vector that are guaranteed to be disjoint