Day 023: The Postmortem
Chapter 2 closes. Not with new material but with a live audit that forced application of everything the chapter built.
Undefined-Behavior
Day 022 The High-Voltage Basement
Chapter 2 closes. The compiler caught my UB live. Six operators, two exercises, sixteen notebook entries.
Day 020: The C String Contract Is a Suicide Pact
K&R 2.8, the strcat design flaw, four new notebook entries, and the moment I realized safety in C is often just geographic coincidence.
Day 016 The Type System Bites
Chapter 2 opens and the type system immediately starts lying to you.