C++ Mental Gymnastics

C++ mental gymnastics strcpy() R mental gymnastics fn alloc_str(mem: &mut Vec<char>, s: &str) { ... } fn alloc_buffer(mem: &mut Vec<char>, size: usize) -> Ptr { ... } fn stretch(&mut Vec<char>, mut s1: Ptr, mut s2: Ptr) -> bool { ... } fn read_line_into_buffer(input: &mut impl BufRead, mem: &mut Vec<char>, buf: Ptr) { ... }

A simple C++ string-copy operation is shown as a relaxed exercise, while the Rust version turns memory management and string handling into an absurd gymnastics routine. The joke is that Rust’s safety and ownership rules make a trivial task dramatically more complicated. It is used as a reaction to overengineering or frustration with Rust code.

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